Acetonitrile

Formula: C₂H₃N
Molecular weight: 41.0519
IUPAC Standard InChI: InChI=1S/C2H3N/c1-2-3/h1H3
IUPAC Standard InChIKey: WEVYAHXRMPXWCK-UHFFFAOYSA-N
CAS Registry Number: 75-05-8
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Other names: Cyanomethane; Ethanenitrile; Ethyl nitrile; Methane, cyano-; Methanecarbonitrile; Methyl cyanide; CH3CN; Acetonitril; Cyanure de methyl; USAF EK-488; Methylkyanid; NA 1648; NCI-C60822; Rcra waste number U003; UN 1648; Ethanonitrile
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Other data available:
- Gas phase thermochemistry data
- Condensed phase thermochemistry data
- Phase change data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 150, reactions 151 to 188
- Henry's Law data
- Gas phase ion energetics data
- IR Spectrum
- UV/Visible spectrum
- Vibrational and/or electronic energy levels
- Gas Chromatography
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- Gas Phase Kinetics Database
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Ion clustering data

Go To: Top, Mass spectrum (electron ionization), References, Notes

Data compiled as indicated in comments:
RCD - Robert C. Dunbar
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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Clustering reactions

+ Acetonitrile = ( • )

By formula: Ag⁺ + C₂H₃N = (Ag⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	162.	kJ/mol	CIDT	Shoieb, Aribi, et al., 2001	RCD

( • Acetonitrile ) + = ( • 2)

By formula: (Ag⁺ • C₂H₃N) + C₂H₃N = (Ag⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	145.	kJ/mol	CIDT	Shoieb, Aribi, et al., 2001	RCD

+ Acetonitrile = ( • )

By formula: Br^- + C₂H₃N = (Br^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	59.8 ± 4.2	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
Δ_rH°	50.6 ± 1.7	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	54.0 ± 1.7	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	54.0 ± 8.4	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Δ_rH°	54.0	kJ/mol	HPMS	Caldwell, Masucci, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	51.0	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	69.0	J/mol*K	HPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	36.4 ± 0.84	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
Δ_rG°	37. ± 8.4	kJ/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..Br- of Hiraoka, Mizure, et al., 19882; B
Δ_rG°	38.5 ± 2.9	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	33. ± 8.4	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • Acetonitrile ) + = ( • 2)

By formula: (Br^- • C₂H₃N) + C₂H₃N = (Br^- • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.0 ± 1.7	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	48.1 ± 2.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	49.37	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	71.1	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	85.4	J/mol*K	HPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	28. ± 5.4	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	24.3	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 2 Acetonitrile ) + = ( • 3)

By formula: (Br^- • 2C₂H₃N) + C₂H₃N = (Br^- • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.5 ± 1.7	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	43.5 ± 2.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	41.84	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	69.9	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	90.8	J/mol*K	HPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18. ± 5.4	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	15.1	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 3 Acetonitrile ) + = ( • 4)

By formula: (Br^- • 3C₂H₃N) + C₂H₃N = (Br^- • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	36.4 ± 1.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	35.6 ± 3.3	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	23.0	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	82.0	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	45.6	J/mol*K	HPMS	Yamdagni and Kebarle, 1972	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 5.0	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	9.20	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 4 Acetonitrile ) + = ( • 5)

By formula: (Br^- • 4C₂H₃N) + C₂H₃N = (Br^- • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	35.6 ± 1.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	24.3 ± 3.8	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	92.9	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.5 ± 5.4	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 5 Acetonitrile ) + = ( • 6)

By formula: (Br^- • 5C₂H₃N) + C₂H₃N = (Br^- • 6C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	33.5 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	23. ± 4.2	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	94.1	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.0 ± 3.8	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 6 Acetonitrile ) + = ( • 7)

By formula: (Br^- • 6C₂H₃N) + C₂H₃N = (Br^- • 7C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.2 ± 1.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	13. ± 4.6	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	95.8	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3. ± 5.4	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 7 Acetonitrile ) + = ( • 8)

By formula: (Br^- • 7C₂H₃N) + C₂H₃N = (Br^- • 8C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15. ± 5.0	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 8 Acetonitrile ) + = ( • 9)

By formula: (Br^- • 8C₂H₃N) + C₂H₃N = (Br^- • 9C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	12. ± 5.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 9 Acetonitrile ) + = ( • 10)

By formula: (Br^- • 9C₂H₃N) + C₂H₃N = (Br^- • 10C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15. ± 6.3	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 10 Acetonitrile ) + = ( • 11)

By formula: (Br^- • 10C₂H₃N) + C₂H₃N = (Br^- • 11C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	5.0 ± 6.7	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 11 Acetonitrile ) + = ( • 12)

By formula: (Br^- • 11C₂H₃N) + C₂H₃N = (Br^- • 12C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	5.0 ± 7.1	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 12 Acetonitrile ) + = ( • 13)

By formula: (Br^- • 12C₂H₃N) + C₂H₃N = (Br^- • 13C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	2. ± 7.5	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 13 Acetonitrile ) + = ( • 14)

By formula: (Br^- • 13C₂H₃N) + C₂H₃N = (Br^- • 14C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	3. ± 7.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

CH₆N⁺ + Acetonitrile = (CH₆N⁺ • )

By formula: CH₆N⁺ + C₂H₃N = (CH₆N⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	110.	kJ/mol	PHPMS	Speller and Meot-Ner (Mautner), 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	108.	J/mol*K	PHPMS	Speller and Meot-Ner (Mautner), 1985	gas phase; M

(CH₆N⁺ • Acetonitrile ) + = (CH₆N⁺ • 2)

By formula: (CH₆N⁺ • C₂H₃N) + C₂H₃N = (CH₆N⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	77.8	kJ/mol	PHPMS	Meot-Ner (Mautner) and Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	98.7	J/mol*K	PHPMS	Meot-Ner (Mautner) and Sieck, 1985	gas phase; M

(CH₆N⁺ • 2 Acetonitrile ) + = (CH₆N⁺ • 3)

By formula: (CH₆N⁺ • 2C₂H₃N) + C₂H₃N = (CH₆N⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	56.1	kJ/mol	PHPMS	Meot-Ner (Mautner) and Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	87.9	J/mol*K	PHPMS	Meot-Ner (Mautner) and Sieck, 1985	gas phase; M

CN^- + Acetonitrile = (CN^- • )

By formula: CN^- + C₂H₃N = (CN^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	57.7 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Δ_rH°	69. ± 15.	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rH°	65.69	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	90.8	J/mol*K	PHPMS	Hiraoka, Mizure, et al., 1988	gas phase; M
Δ_rS°	59.4	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Δ_rS°	102.	J/mol*K	N/A	Larson and McMahon, 1987	gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	40. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B
Δ_rG°	38. ± 9.6	kJ/mol	IMRE	Larson and McMahon, 1987	gas phase; B,M
Δ_rG°	38.5	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B

C₂H₂N^- + Acetonitrile = (C₂H₂N^- • )

By formula: C₂H₂N^- + C₂H₃N = (C₂H₂N^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	53.6 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Δ_rH°	65.69	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	95.4	J/mol*K	PHPMS	Hiraoka, Mizure, et al., 1988	gas phase; M
Δ_rS°	56.1	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	37. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Δ_rG°	37.2	kJ/mol	TDAs	Hiraoka, Mizure, et al., 1988	gas phase; B

+ Acetonitrile = ( • )

By formula: C₂H₃O₂^- + C₂H₃N = (C₂H₃O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	61.9 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	75.3	J/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	39. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988	gas phase; B

(C₂H₄N⁺ • ) + Acetonitrile = (C₂H₄N⁺ • • )

By formula: (C₂H₄N⁺ • CH₄O) + C₂H₃N = (C₂H₄N⁺ • C₂H₃N • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	94.6	kJ/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	103.	J/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

C₂H₄N⁺ + Acetonitrile = (C₂H₄N⁺ • )

By formula: C₂H₄N⁺ + C₂H₃N = (C₂H₄N⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	130. ± 9.6	kJ/mol	CID	Honma, Sunderlin, et al., 1993	gas phase; guided ion beam CID; M
Δ_rH°	121.	kJ/mol	PHPMS	Allison, Cramer, et al., 1991	gas phase; M
Δ_rH°	125.	kJ/mol	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n; M
Δ_rH°	125.	kJ/mol	PHPMS	Speller and Meot-Ner (Mautner), 1985	gas phase; M
Δ_rH°	126.	kJ/mol	PHPMS	Meot-Ner (Mautner), 1978	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	114.	J/mol*K	PHPMS	Allison, Cramer, et al., 1991	gas phase; M
Δ_rS°	104.	J/mol*K	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n; M
Δ_rS°	103.	J/mol*K	PHPMS	Speller and Meot-Ner (Mautner), 1985	gas phase; M
Δ_rS°	120.	J/mol*K	PHPMS	Meot-Ner (Mautner), 1978	gas phase; M

(C₂H₄N⁺ • Acetonitrile • ) + = (C₂H₄N⁺ • 2 • )

By formula: (C₂H₄N⁺ • C₂H₃N • CH₄O) + C₂H₃N = (C₂H₄N⁺ • 2C₂H₃N • CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.	kJ/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	51.9	J/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

(C₂H₄N⁺ • Acetonitrile • 2) + = (C₂H₄N⁺ • 2 • 2)

By formula: (C₂H₄N⁺ • C₂H₃N • 2CH₄O) + C₂H₃N = (C₂H₄N⁺ • 2C₂H₃N • 2CH₄O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	65.3	kJ/mol	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	90.4	J/mol*K	PHPMS	El-Shall, Olafsdottir, et al., 1991	gas phase; M

(C₂H₄N⁺ • Acetonitrile ) + = (C₂H₄N⁺ • 2)

By formula: (C₂H₄N⁺ • C₂H₃N) + C₂H₃N = (C₂H₄N⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39.	kJ/mol	PHPMS	Meot-Ner (Mautner), 1978	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	79.	J/mol*K	PHPMS	Meot-Ner (Mautner), 1978	gas phase; M

(C₂H₄N⁺ • Acetonitrile • ) + = (C₂H₄N⁺ • 2 • )

By formula: (C₂H₄N⁺ • C₂H₃N • H₂O) + C₂H₃N = (C₂H₄N⁺ • 2C₂H₃N • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	86.2	kJ/mol	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	114.	J/mol*K	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n; M

(C₂H₄N⁺ • Acetonitrile • 4) + = (C₂H₄N⁺ • 2 • 4)

By formula: (C₂H₄N⁺ • C₂H₃N • 4H₂O) + C₂H₃N = (C₂H₄N⁺ • 2C₂H₃N • 4H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	60.2	kJ/mol	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	92.	J/mol*K	N/A	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
31.	318.	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n, Entropy change calculated or estimated; M

(C₂H₄N⁺ • ) + Acetonitrile = (C₂H₄N⁺ • • )

By formula: (C₂H₄N⁺ • H₂O) + C₂H₃N = (C₂H₄N⁺ • C₂H₃N • H₂O)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	97.9	kJ/mol	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	103.	J/mol*K	PHPMS	Deakyne, Meot-Ner (Mautner), et al., 1986	gas phase; n; M

C₂H₆NO⁺ + Acetonitrile = (C₂H₆NO⁺ • )

By formula: C₂H₆NO⁺ + C₂H₃N = (C₂H₆NO⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
67.8	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₂H₇O⁺ + Acetonitrile = (C₂H₇O⁺ • )

By formula: C₂H₇O⁺ + C₂H₃N = (C₂H₇O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
96.2	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O,; Grimsrud and Kebarle, 1973; M

C₃H₅O⁺ + Acetonitrile = (C₃H₅O⁺ • )

By formula: C₃H₅O⁺ + C₂H₃N = (C₃H₅O⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	64.0	kJ/mol	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	79.1	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
39.	295.	FA	Mackay, Rakshit, et al., 1982	gas phase; M

C₃H₅O^- + Acetonitrile = (C₃H₅O^- • )

By formula: C₃H₅O^- + C₂H₃N = (C₃H₅O^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	64.0 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	40. ± 8.4	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

C₃H₇O⁺ + Acetonitrile = (C₃H₇O⁺ • )

By formula: C₃H₇O⁺ + C₂H₃N = (C₃H₇O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
87.0	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₃H₇O₂⁺ + Acetonitrile = (C₃H₇O₂⁺ • )

By formula: C₃H₇O₂⁺ + C₂H₃N = (C₃H₇O₂⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
90.0	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₃H₇O₂⁺ + Acetonitrile = (C₃H₇O₂⁺ • )

By formula: C₃H₇O₂⁺ + C₂H₃N = (C₃H₇O₂⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
84.1	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; n,switching reaction((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₃H₉O⁺ + Acetonitrile = (C₃H₉O⁺ • )

By formula: C₃H₉O⁺ + C₂H₃N = (C₃H₉O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
98.7	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₃H₉Sn⁺ + Acetonitrile = (C₃H₉Sn⁺ • )

By formula: C₃H₉Sn⁺ + C₂H₃N = (C₃H₉Sn⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	157.	kJ/mol	PHPMS	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	131.	J/mol*K	N/A	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
87.9	525.	PHPMS	Stone and Splinter, 1984	gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

C₄H₂O₃^- + Acetonitrile = (C₄H₂O₃^- • )

By formula: C₄H₂O₃^- + C₂H₃N = (C₄H₂O₃^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	23. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

+ Acetonitrile = ( • )

By formula: C₄H₄N^- + C₂H₃N = (C₄H₄N^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	66.1 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	97.9	J/mol*K	PHPMS	Meot-ner, 1988, 2	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	37. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

C₄H₆N⁺ + Acetonitrile = (C₄H₆N⁺ • )

By formula: C₄H₆N⁺ + C₂H₃N = (C₄H₆N⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
87.0	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₄H₇O⁺ + Acetonitrile = (C₄H₇O⁺ • )

By formula: C₄H₇O⁺ + C₂H₃N = (C₄H₇O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
92.5	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₄H₉O⁺ + Acetonitrile = (C₄H₉O⁺ • )

By formula: C₄H₉O⁺ + C₂H₃N = (C₄H₉O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
86.6	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973; M

C₄H₉O₂⁺ + Acetonitrile = (C₄H₉O₂⁺ • )

By formula: C₄H₉O₂⁺ + C₂H₃N = (C₄H₉O₂⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
95.8	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₄H₉O₂⁺ + Acetonitrile = (C₄H₉O₂⁺ • )

By formula: C₄H₉O₂⁺ + C₂H₃N = (C₄H₉O₂⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
79.1	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction((CH3)2O)H+)(CH3)2O; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984; M

C₄H₁₁O⁺ + Acetonitrile = (C₄H₁₁O⁺ • )

By formula: C₄H₁₁O⁺ + C₂H₃N = (C₄H₁₁O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
82.0	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction(Me2O)2H+; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984; M

C₅HFeO₅⁺ + Acetonitrile = (C₅HFeO₅⁺ • )

By formula: C₅HFeO₅⁺ + C₂H₃N = (C₅HFeO₅⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	70.3	kJ/mol	PHPMS	Allison, Cramer, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	112.	J/mol*K	PHPMS	Allison, Cramer, et al., 1991	gas phase; M

+ Acetonitrile = ( • )

By formula: C₅H₅^- + C₂H₃N = (C₅H₅^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	64.9 ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	36. ± 4.2	kJ/mol	TDAs	Meot-ner, 1988, 2	gas phase; B

C₅H₉O⁺ + Acetonitrile = (C₅H₉O⁺ • )

By formula: C₅H₉O⁺ + C₂H₃N = (C₅H₉O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
84.1	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₅H₉O⁺ + Acetonitrile = (C₅H₉O⁺ • )

By formula: C₅H₉O⁺ + C₂H₃N = (C₅H₉O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
73.2	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₅H₉O₂⁺ + Acetonitrile = (C₅H₉O₂⁺ • )

By formula: C₅H₉O₂⁺ + C₂H₃N = (C₅H₉O₂⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
74.1	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₅H₁₁O⁺ + Acetonitrile = (C₅H₁₁O⁺ • )

By formula: C₅H₁₁O⁺ + C₂H₃N = (C₅H₁₁O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
84.9	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₅H₁₃O⁺ + Acetonitrile = (C₅H₁₃O⁺ • )

By formula: C₅H₁₃O⁺ + C₂H₃N = (C₅H₁₃O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
77.0	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₆F₄O₂^- + Acetonitrile = (C₆F₄O₂^- • )

By formula: C₆F₄O₂^- + C₂H₃N = (C₆F₄O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	14. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
14.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Acetonitrile = (C₆H₄ClNO₂^- • )

By formula: C₆H₄ClNO₂^- + C₂H₃N = (C₆H₄ClNO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	24. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
24.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Acetonitrile = (C₆H₄ClNO₂^- • )

By formula: C₆H₄ClNO₂^- + C₂H₃N = (C₆H₄ClNO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
26.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄ClNO₂^- + Acetonitrile = (C₆H₄ClNO₂^- • )

By formula: C₆H₄ClNO₂^- + C₂H₃N = (C₆H₄ClNO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	25. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
25.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Acetonitrile = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₂H₃N = (C₆H₄FNO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
26.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Acetonitrile = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₂H₃N = (C₆H₄FNO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	26. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
26.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄FNO₂^- + Acetonitrile = (C₆H₄FNO₂^- • )

By formula: C₆H₄FNO₂^- + C₂H₃N = (C₆H₄FNO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	25. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
25.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄NO₃^- + Acetonitrile = (C₆H₄NO₃^- • )

By formula: C₆H₄NO₃^- + C₂H₃N = (C₆H₄NO₃^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	24. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄NO₃^- + Acetonitrile = (C₆H₄NO₃^- • )

By formula: C₆H₄NO₃^- + C₂H₃N = (C₆H₄NO₃^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	27. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₆H₄N₂O₄^- + Acetonitrile = (C₆H₄N₂O₄^- • )

By formula: C₆H₄N₂O₄^- + C₂H₃N = (C₆H₄N₂O₄^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
13.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄N₂O₄^- + Acetonitrile = (C₆H₄N₂O₄^- • )

By formula: C₆H₄N₂O₄^- + C₂H₃N = (C₆H₄N₂O₄^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
20.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₄N₂O₄^- + Acetonitrile = (C₆H₄N₂O₄^- • )

By formula: C₆H₄N₂O₄^- + C₂H₃N = (C₆H₄N₂O₄^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
18.	343.	PHPMS	Chowdhury, 1987	gas phase; M

+ Acetonitrile = ( • )

By formula: C₆H₄O₂^- + C₂H₃N = (C₆H₄O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
20.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₅NO₂^- + Acetonitrile = (C₆H₅NO₂^- • )

By formula: C₆H₅NO₂^- + C₂H₃N = (C₆H₅NO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	28. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
28.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₆H₇N⁺ + Acetonitrile = (C₆H₇N⁺ • )

By formula: C₆H₇N⁺ + C₂H₃N = (C₆H₇N⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	72.4	kJ/mol	PHPMS	Meot-Ner (Mautner) and El-Shall, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	74.5	J/mol*K	PHPMS	Meot-Ner (Mautner) and El-Shall, 1986	gas phase; M

C₆H₇O⁺ + Acetonitrile = (C₆H₇O⁺ • )

By formula: C₆H₇O⁺ + C₂H₃N = (C₆H₇O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
78.2	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₆H₁₁O⁺ + Acetonitrile = (C₆H₁₁O⁺ • )

By formula: C₆H₁₁O⁺ + C₂H₃N = (C₆H₁₁O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
81.2	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₆H₁₃O⁺ + Acetonitrile = (C₆H₁₃O⁺ • )

By formula: C₆H₁₃O⁺ + C₂H₃N = (C₆H₁₃O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
76.1	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₆H₁₃O⁺ + Acetonitrile = (C₆H₁₃O⁺ • )

By formula: C₆H₁₃O⁺ + C₂H₃N = (C₆H₁₃O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
75.7	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₆H₁₅O⁺ + Acetonitrile = (C₆H₁₅O⁺ • )

By formula: C₆H₁₅O⁺ + C₂H₃N = (C₆H₁₅O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
78.2	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₆H₁₅O⁺ + Acetonitrile = (C₆H₁₅O⁺ • )

By formula: C₆H₁₅O⁺ + C₂H₃N = (C₆H₁₅O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
74.9	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₇H₄F₃NO₂^- + Acetonitrile = (C₇H₄F₃NO₂^- • )

By formula: C₇H₄F₃NO₂^- + C₂H₃N = (C₇H₄F₃NO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	55.6 ± 8.4	kJ/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	97.9	J/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	23. ± 8.4	kJ/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₄N₂O₂^- + Acetonitrile = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₂H₃N = (C₇H₄N₂O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
21.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Acetonitrile = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₂H₃N = (C₇H₄N₂O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
22.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₄N₂O₂^- + Acetonitrile = (C₇H₄N₂O₂^- • )

By formula: C₇H₄N₂O₂^- + C₂H₃N = (C₇H₄N₂O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	58.2 ± 8.4	kJ/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	120.	J/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	17. ± 8.4	kJ/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₇NO₂^- + Acetonitrile = (C₇H₇NO₂^- • )

By formula: C₇H₇NO₂^- + C₂H₃N = (C₇H₇NO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	28. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
28.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₇H₇NO₃^- + Acetonitrile = (C₇H₇NO₃^- • )

By formula: C₇H₇NO₃^- + C₂H₃N = (C₇H₇NO₃^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	57.7 ± 8.4	kJ/mol	N/A	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	95.0	J/mol*K	PHPMS	Chowdhury, 1987	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	28. ± 8.4	kJ/mol	TDAs	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

C₇H₁₁O⁺ + Acetonitrile = (C₇H₁₁O⁺ • )

By formula: C₇H₁₁O⁺ + C₂H₃N = (C₇H₁₁O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
59.8	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₇H₁₅O⁺ + Acetonitrile = (C₇H₁₅O⁺ • )

By formula: C₇H₁₅O⁺ + C₂H₃N = (C₇H₁₅O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
69.9	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₈H₉O₂⁺ + Acetonitrile = (C₈H₉O₂⁺ • )

By formula: C₈H₉O₂⁺ + C₂H₃N = (C₈H₉O₂⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
69.0	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₉H₁₁O⁺ + Acetonitrile = (C₉H₁₁O⁺ • )

By formula: C₉H₁₁O⁺ + C₂H₃N = (C₉H₁₁O⁺ • C₂H₃N)

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
64.9	320.	ICR	Bromilow, Abboud, et al., 1980	gas phase; switching reaction,n((CH3)2OH+)(CH3)2O; Grimsrud and Kebarle, 1973; M

C₁₀H₄Cl₂O₂^- + Acetonitrile = (C₁₀H₄Cl₂O₂^- • )

By formula: C₁₀H₄Cl₂O₂^- + C₂H₃N = (C₁₀H₄Cl₂O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	<6.3 ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
6.3	343.	PHPMS	Chowdhury, 1987	gas phase; DG<; M

+ Acetonitrile = ( • )

By formula: C₁₀H₆O₂^- + C₂H₃N = (C₁₀H₆O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18. ± 6.7	kJ/mol	IMRE	Chowdhury, Grimsrud, et al., 1987	gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
18.	343.	PHPMS	Chowdhury, 1987	gas phase; M

C₁₀H₁₀Fe⁺ + Acetonitrile = (C₁₀H₁₀Fe⁺ • )

By formula: C₁₀H₁₀Fe⁺ + C₂H₃N = (C₁₀H₁₀Fe⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.7	kJ/mol	PHPMS	Meot-Ner (Mautner), 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	79.1	J/mol*K	PHPMS	Meot-Ner (Mautner), 1989	gas phase; M

(C₁₀H₁₀Fe⁺ • Acetonitrile ) + = (C₁₀H₁₀Fe⁺ • 2)

By formula: (C₁₀H₁₀Fe⁺ • C₂H₃N) + C₂H₃N = (C₁₀H₁₀Fe⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.	kJ/mol	PHPMS	Meot-Ner (Mautner), 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	66.9	J/mol*K	PHPMS	Meot-Ner (Mautner), 1989	gas phase; M

C₁₀H₁₁Fe⁺ + Acetonitrile = (C₁₀H₁₁Fe⁺ • )

By formula: C₁₀H₁₁Fe⁺ + C₂H₃N = (C₁₀H₁₁Fe⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	54.0	kJ/mol	PHPMS	Meot-Ner (Mautner), 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	97.9	J/mol*K	PHPMS	Meot-Ner (Mautner), 1989	gas phase; M

C₁₁H₁₀⁺ + Acetonitrile = (C₁₁H₁₀⁺ • )

By formula: C₁₁H₁₀⁺ + C₂H₃N = (C₁₁H₁₀⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	47.3	kJ/mol	PHPMS	El-Shall and Meot-Ner (Mautner), 1987	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	92.	J/mol*K	N/A	El-Shall and Meot-Ner (Mautner), 1987	gas phase; Entropy change calculated or estimated; M

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
19.	303.	PHPMS	El-Shall and Meot-Ner (Mautner), 1987	gas phase; Entropy change calculated or estimated; M

+ Acetonitrile = ( • )

By formula: Cl^- + C₂H₃N = (Cl^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	61. ± 10.	kJ/mol	AVG	N/A	Average of 6 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	65.7	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	65.7	J/mol*K	PHPMS	Yamabe, Furumiya, et al., 1986	gas phase; M
Δ_rS°	59.8	J/mol*K	PHPMS	Sieck, 1985	gas phase; M
Δ_rS°	59.8	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Δ_rS°	89.5	J/mol*K	N/A	Larson and McMahon, 1984	gas phase; switching reaction(Cl-)CF3H, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	42.68 ± 0.84	kJ/mol	TDAs	Li, Ross, et al., 1996	gas phase; B
Δ_rG°	38. ± 8.4	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	37. ± 11.	kJ/mol	TDAs	Yamabe, Furumiya, et al., 1986	gas phase; B
Δ_rG°	42.26 ± 0.84	kJ/mol	TDAs	Sieck, 1985	gas phase; B
Δ_rG°	38. ± 8.4	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • Acetonitrile ) + = ( • 2)

By formula: (Cl^- • C₂H₃N) + C₂H₃N = (Cl^- • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	52.3 ± 1.7	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	50.2 ± 2.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	51.04	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	68.2	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	79.1	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	32. ± 5.0	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	27.6	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 2 Acetonitrile ) + = ( • 3)

By formula: (Cl^- • 2C₂H₃N) + C₂H₃N = (Cl^- • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	46.9 ± 1.7	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	50.2 ± 2.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	44.35	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	82.0	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	84.1	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	22. ± 5.4	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	19.2	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 3 Acetonitrile ) + = ( • 4)

By formula: (Cl^- • 3C₂H₃N) + C₂H₃N = (Cl^- • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	45.6 ± 1.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	37.7 ± 3.3	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	25.9	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	111.	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	45.2	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	12. ± 5.0	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	12.6	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 4 Acetonitrile ) + = ( • 5)

By formula: (Cl^- • 4C₂H₃N) + C₂H₃N = (Cl^- • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	41.0 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	24.3 ± 3.8	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	113.	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	7.1 ± 3.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 5 Acetonitrile ) + = ( • 6)

By formula: (Cl^- • 5C₂H₃N) + C₂H₃N = (Cl^- • 6C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39.7 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	24. ± 4.2	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	122.	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	3.3 ± 3.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 6 Acetonitrile ) + = ( • 7)

By formula: (Cl^- • 6C₂H₃N) + C₂H₃N = (Cl^- • 7C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39.3 ± 1.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	16. ± 4.6	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	128.	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	0.8 ± 5.9	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 7 Acetonitrile ) + = ( • 8)

By formula: (Cl^- • 7C₂H₃N) + C₂H₃N = (Cl^- • 8C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.5	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; Entropy estimated; B,M
Δ_rH°	12. ± 5.0	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	130.	J/mol*K	N/A	Hiraoka, Mizuse, et al., 1988	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	-1.7	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; Entropy estimated; B

( • 8 Acetonitrile ) + = ( • 9)

By formula: (Cl^- • 8C₂H₃N) + C₂H₃N = (Cl^- • 9C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	18. ± 5.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 9 Acetonitrile ) + = ( • 10)

By formula: (Cl^- • 9C₂H₃N) + C₂H₃N = (Cl^- • 10C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.8 ± 6.3	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 10 Acetonitrile ) + = ( • 11)

By formula: (Cl^- • 10C₂H₃N) + C₂H₃N = (Cl^- • 11C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	7.5 ± 6.7	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 11 Acetonitrile ) + = ( • 12)

By formula: (Cl^- • 11C₂H₃N) + C₂H₃N = (Cl^- • 12C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-2. ± 7.1	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 12 Acetonitrile ) + = ( • 13)

By formula: (Cl^- • 12C₂H₃N) + C₂H₃N = (Cl^- • 13C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	4. ± 7.5	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 13 Acetonitrile ) + = ( • 14)

By formula: (Cl^- • 13C₂H₃N) + C₂H₃N = (Cl^- • 14C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-2. ± 7.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

+ Acetonitrile = ( • )

By formula: Cs⁺ + C₂H₃N = (Cs⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	80.3	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	77.8	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • Acetonitrile ) + = ( • 2)

By formula: (Cs⁺ • C₂H₃N) + C₂H₃N = (Cs⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	69.9	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	90.4	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 2 Acetonitrile ) + = ( • 3)

By formula: (Cs⁺ • 2C₂H₃N) + C₂H₃N = (Cs⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	59.8	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	100.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 3 Acetonitrile ) + = ( • 4)

By formula: (Cs⁺ • 3C₂H₃N) + C₂H₃N = (Cs⁺ • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	50.6	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	113.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 4 Acetonitrile ) + = ( • 5)

By formula: (Cs⁺ • 4C₂H₃N) + C₂H₃N = (Cs⁺ • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	45.6	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	138.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

+ Acetonitrile = ( • )

By formula: Cu⁺ + C₂H₃N = (Cu⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	238. ± 3.	kJ/mol	CIDT	Vitale, 2001	CH3CN is fifth ligand; RCD

( • Acetonitrile ) + = ( • 2)

By formula: (Cu⁺ • C₂H₃N) + C₂H₃N = (Cu⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	238. ± 9.2	kJ/mol	CIDT	Vitale, 2001	RCD

( • 2 Acetonitrile ) + = ( • 3)

By formula: (Cu⁺ • 2C₂H₃N) + C₂H₃N = (Cu⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	84. ± 2.	kJ/mol	CIDT	Vitale, 2001	RCD

( • 3 Acetonitrile ) + = ( • 4)

By formula: (Cu⁺ • 3C₂H₃N) + C₂H₃N = (Cu⁺ • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	67. ± 2.	kJ/mol	CIDT	Vitale, 2001	RCD

( • 4 Acetonitrile ) + = ( • 5)

By formula: (Cu⁺ • 4C₂H₃N) + C₂H₃N = (Cu⁺ • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	59.8 ± 4.2	kJ/mol	CIDT	Vitale, 2001	RCD

+ Acetonitrile = ( • )

By formula: F^- + C₂H₃N = (F^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	103. ± 8.4	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; Discrepancy with Yamdagni and Kebarle, 1972 "not resolved; B,M
Δ_rH°	66.9 ± 8.4	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	95.8	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	56.1	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	74. ± 14.	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; Discrepancy with Yamdagni and Kebarle, 1972 "not resolved; B
Δ_rG°	50.2 ± 8.4	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • Acetonitrile ) + = ( • 2)

By formula: (F^- • C₂H₃N) + C₂H₃N = (F^- • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	74.1 ± 6.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	53.97	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	95.8	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	61.9	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	45. ± 14.	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	35.6	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 2 Acetonitrile ) + = ( • 3)

By formula: (F^- • 2C₂H₃N) + C₂H₃N = (F^- • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	63.2 ± 4.2	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	48.95	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	93.7	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	74.9	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	35. ± 10.	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	26.8	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 3 Acetonitrile ) + = ( • 4)

By formula: (F^- • 3C₂H₃N) + C₂H₃N = (F^- • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	53.6 ± 2.1	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	43.51	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	110.	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	82.0	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21. ± 7.9	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	18.8	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 4 Acetonitrile ) + = ( • 5)

By formula: (F^- • 4C₂H₃N) + C₂H₃N = (F^- • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	48.12 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	22.2	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	124.	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	31.	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	10.9 ± 3.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	13.0	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 5 Acetonitrile ) + = ( • 6)

By formula: (F^- • 5C₂H₃N) + C₂H₃N = (F^- • 6C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	40.6 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	116.	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.9 ± 3.8	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 6 Acetonitrile ) + = ( • 7)

By formula: (F^- • 6C₂H₃N) + C₂H₃N = (F^- • 7C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	35.6	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	120.	J/mol*K	N/A	Hiraoka, Mizuse, et al., 1988	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	0.42	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; Entropy estimated; B

+ Acetonitrile = ( • )

By formula: H₄N⁺ + C₂H₃N = (H₄N⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	115.	kJ/mol	PHPMS	Liebman, Romm, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	101.	J/mol*K	PHPMS	Liebman, Romm, et al., 1991	gas phase; M

( • Acetonitrile ) + = ( • 2)

By formula: (H₄N⁺ • C₂H₃N) + C₂H₃N = (H₄N⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	88.7	kJ/mol	PHPMS	Liebman, Romm, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	106.	J/mol*K	PHPMS	Liebman, Romm, et al., 1991	gas phase; M

( • 2 Acetonitrile ) + = ( • 3)

By formula: (H₄N⁺ • 2C₂H₃N) + C₂H₃N = (H₄N⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	59.4	kJ/mol	PHPMS	Liebman, Romm, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	81.6	J/mol*K	PHPMS	Liebman, Romm, et al., 1991	gas phase; M

( • 3 Acetonitrile ) + = ( • 4)

By formula: (H₄N⁺ • 3C₂H₃N) + C₂H₃N = (H₄N⁺ • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.0	kJ/mol	PHPMS	Liebman, Romm, et al., 1991	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	92.9	J/mol*K	PHPMS	Liebman, Romm, et al., 1991	gas phase; M

+ Acetonitrile = ( • )

By formula: I^- + C₂H₃N = (I^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.8 ± 8.4	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Δ_rH°	46.4 ± 1.7	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	46.4 ± 4.6	kJ/mol	LPES	Dessent, Bailey, et al., 1995	gas phase; B
Δ_rH°	46.02 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	50.	kJ/mol	PHPMS	Caldwell, Masucci, et al., 1989	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	57.7	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	76.1	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	27. ± 8.4	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B
Δ_rG°	28. ± 8.4	kJ/mol	IMRE	Tanabe, Morgon, et al., 1996	gas phase; Anchored to H2O..I- of Caldwell and Kebarle, 1984; B
Δ_rG°	28.9 ± 2.1	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • Acetonitrile ) + = ( • 2)

By formula: (I^- • C₂H₃N) + C₂H₃N = (I^- • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	43.51 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	46.4 ± 2.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	46.4 ± 1.7	kJ/mol	N/A	Dessent, Bailey, et al., 1995	gas phase; Vertical Detachment Energy: 2.25±0.08 eV.; B
Δ_rH°	43.93	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	77.0	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	87.0	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	20.5 ± 3.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	18.0	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 2 Acetonitrile ) + = ( • 3)

By formula: (I^- • 2C₂H₃N) + C₂H₃N = (I^- • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	38.5 ± 0.84	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	40.6 ± 2.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Δ_rH°	38.9	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	83.3	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Δ_rS°	92.5	J/mol*K	PHPMS	Yamdagni and Kebarle, 1972	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	13.4 ± 3.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B
Δ_rG°	11.3	kJ/mol	TDAs	Yamdagni and Kebarle, 1972	gas phase; B

( • 3 Acetonitrile ) + = ( • 4)

By formula: (I^- • 3C₂H₃N) + C₂H₃N = (I^- • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.6 ± 0.42	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	31.0 ± 3.3	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	80.8	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	8.4 ± 1.7	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 4 Acetonitrile ) + = ( • 5)

By formula: (I^- • 4C₂H₃N) + C₂H₃N = (I^- • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	29.7 ± 1.3	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B,M
Δ_rH°	44.4 ± 3.8	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	79.1	J/mol*K	PHPMS	Hiraoka, Mizuse, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	5.9 ± 5.9	kJ/mol	TDAs	Hiraoka, Mizuse, et al., 1988	gas phase; B

( • 5 Acetonitrile ) + = ( • 6)

By formula: (I^- • 5C₂H₃N) + C₂H₃N = (I^- • 6C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-10. ± 4.2	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 6 Acetonitrile ) + = ( • 7)

By formula: (I^- • 6C₂H₃N) + C₂H₃N = (I^- • 7C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	15. ± 4.6	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 7 Acetonitrile ) + = ( • 8)

By formula: (I^- • 7C₂H₃N) + C₂H₃N = (I^- • 8C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	13. ± 5.0	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 8 Acetonitrile ) + = ( • 9)

By formula: (I^- • 8C₂H₃N) + C₂H₃N = (I^- • 9C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10. ± 5.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 9 Acetonitrile ) + = ( • 10)

By formula: (I^- • 9C₂H₃N) + C₂H₃N = (I^- • 10C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10. ± 6.3	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 10 Acetonitrile ) + = ( • 11)

By formula: (I^- • 10C₂H₃N) + C₂H₃N = (I^- • 11C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.8 ± 6.7	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 11 Acetonitrile ) + = ( • 12)

By formula: (I^- • 11C₂H₃N) + C₂H₃N = (I^- • 12C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	8.8 ± 7.1	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

( • 13 Acetonitrile ) + = ( • 14)

By formula: (I^- • 13C₂H₃N) + C₂H₃N = (I^- • 14C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	-4. ± 7.9	kJ/mol	N/A	Markovich, Perera, et al., 1996	gas phase; B

+ Acetonitrile = ( • )

By formula: K⁺ + C₂H₃N = (K⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	102.	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	90.0	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • Acetonitrile ) + = ( • 2)

By formula: (K⁺ • C₂H₃N) + C₂H₃N = (K⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	86.2	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	101.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 2 Acetonitrile ) + = ( • 3)

By formula: (K⁺ • 2C₂H₃N) + C₂H₃N = (K⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	76.1	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	118.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 3 Acetonitrile ) + = ( • 4)

By formula: (K⁺ • 3C₂H₃N) + C₂H₃N = (K⁺ • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	56.9	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	115.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 4 Acetonitrile ) + = ( • 5)

By formula: (K⁺ • 4C₂H₃N) + C₂H₃N = (K⁺ • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	48.1	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	141.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

+ Acetonitrile = ( • )

By formula: Li⁺ + C₂H₃N = (Li⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	180.	kJ/mol	ICR	Staley and Beauchamp, 1975	gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 interpolated; M

+ Acetonitrile = ( • )

By formula: NO₂^- + C₂H₃N = (NO₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	56.07 ± 0.42	kJ/mol	TDAs	Sieck, 1985	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	64.0	J/mol*K	PHPMS	Sieck, 1985	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	36.8 ± 0.84	kJ/mol	TDAs	Sieck, 1985	gas phase; B

+ Acetonitrile = ( • )

By formula: Na⁺ + C₂H₃N = (Na⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	128. ± 4.6	kJ/mol	CIDT	Valina, 2001	RCD

Free energy of reaction

Δ_rG° (kJ/mol)	T (K)	Method	Reference	Comment
98.7	298.	IMRE	McMahon and Ohanessian, 2000	Anchor alanine=39.89; RCD

( • Acetonitrile ) + = ( • 2)

By formula: (Na⁺ • C₂H₃N) + C₂H₃N = (Na⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	109. ± 7.9	kJ/mol	CIDT	Valina, 2001	RCD
Δ_rH°	102.	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	95.0	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 2 Acetonitrile ) + = ( • 3)

By formula: (Na⁺ • 2C₂H₃N) + C₂H₃N = (Na⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	89. ± 3.	kJ/mol	CIDT	Valina, 2001	RCD
Δ_rH°	86.2	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	115.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 3 Acetonitrile ) + = ( • 4)

By formula: (Na⁺ • 3C₂H₃N) + C₂H₃N = (Na⁺ • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	64. ± 3.	kJ/mol	CIDT	Valina, 2001	RCD
Δ_rH°	62.3	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	117.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 4 Acetonitrile ) + = ( • 5)

By formula: (Na⁺ • 4C₂H₃N) + C₂H₃N = (Na⁺ • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	53. ± 3.	kJ/mol	CIDT	Valina, 2001	CH3CN is fifth ligand; RCD
Δ_rH°	53.1	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	172.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; Entropy change is questionable; M

+ Acetonitrile = ( • )

By formula: O₂^- + C₂H₃N = (O₂^- • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	68.62	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	72.8	J/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	46.86	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • Acetonitrile ) + = ( • 2)

By formula: (O₂^- • C₂H₃N) + C₂H₃N = (O₂^- • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	59.4 ± 2.9	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	92.0	J/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	32.2 ± 1.7	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 2 Acetonitrile ) + = ( • 3)

By formula: (O₂^- • 2C₂H₃N) + C₂H₃N = (O₂^- • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	49.8 ± 2.5	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	103.	J/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	18.8 ± 0.84	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

( • 3 Acetonitrile ) + = ( • 4)

By formula: (O₂^- • 3C₂H₃N) + C₂H₃N = (O₂^- • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	39.7 ± 2.1	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	93.7	J/mol*K	PHPMS	Yamdagni, Payzant, et al., 1973	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	11.7 ± 0.42	kJ/mol	TDAs	Yamdagni, Payzant, et al., 1973	gas phase; B

+ Acetonitrile = ( • )

By formula: Rb⁺ + C₂H₃N = (Rb⁺ • C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	86.6	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	75.7	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • Acetonitrile ) + = ( • 2)

By formula: (Rb⁺ • C₂H₃N) + C₂H₃N = (Rb⁺ • 2C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	74.1	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	87.4	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 2 Acetonitrile ) + = ( • 3)

By formula: (Rb⁺ • 2C₂H₃N) + C₂H₃N = (Rb⁺ • 3C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	65.7	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	104.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 3 Acetonitrile ) + = ( • 4)

By formula: (Rb⁺ • 3C₂H₃N) + C₂H₃N = (Rb⁺ • 4C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	52.3	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	108.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; M

( • 4 Acetonitrile ) + = ( • 5)

By formula: (Rb⁺ • 4C₂H₃N) + C₂H₃N = (Rb⁺ • 5C₂H₃N)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	46.4	kJ/mol	HPMS	Davidson and Kebarle, 1976	gas phase; Entropy change is questionable; M
Quantity	Value	Units	Method	Reference	Comment
Δ_rS°	136.	J/mol*K	HPMS	Davidson and Kebarle, 1976	gas phase; Entropy change is questionable; M

Mass spectrum (electron ionization)

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Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

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Origin	Japan AIST/NIMC Database- Spectrum MS-NW-4393
NIST MS number	228221

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References

Go To: Top, Ion clustering data, Mass spectrum (electron ionization), Notes

Shoieb, Aribi, et al., 2001
Shoieb, T.; Aribi, H.; Siu, K.W.M.; Hopkinson, A.C., A Study of Silver(I) Ion-Organometallic Complexes: Ion Structures, Binding Energies, and Substituent Effects, J. Phys. Chem. A, 2001, 105, 4, 710, https://doi.org/10.1021/jp002676m . [all data]

Li, Ross, et al., 1996
Li, C.; Ross, P.; Szulejko, J.; McMahon, T.B., High-Pressure Mass Spectrometric Investigations of the Potential Energy Surfaces of Gas-Phase Sn2 Reactions., J. Am. Chem. Soc., 1996, 118, 39, 9360, https://doi.org/10.1021/ja960565o . [all data]

Markovich, Perera, et al., 1996
Markovich, G.; Perera, L.; Berkowitz, M.L.; Cheshnovsky, O., The Solvation of Cl-, Br-, and I- in Acetonitrile Cluster: Photoelectron Spectroscopy and Molecular Dynamics Simulations., J. Chem. Phys., 1996, 105, 7, 2675, https://doi.org/10.1063/1.472131 . [all data]

Hiraoka, Mizuse, et al., 1988
Hiraoka, K.; Mizuse, S.; Yamabe, S., Solvation of Halide Ions with H₂O and CH₃CN in the Gas Phase, J. Phys. Chem., 1988, 92, 13, 3943, https://doi.org/10.1021/j100324a051 . [all data]

Yamdagni and Kebarle, 1972
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Speller, C.V.; Meot-Ner (Mautner), M., The Ionic Hydrogen Bond and Ion Solvation. 3. Bonds Involving Cyanides. Correlations with Proton Affinites, J. Phys. Chem., 1985, 81, 24, 5217, https://doi.org/10.1021/j100270a020 . [all data]

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Meot-ner, 1988
Meot-ner, M., Ionic Hydrogen Bond and Ion Solvation. ₆. Interaction Energies of the Acetate Ion with Organic Molecules. Comparison of CH₃COO^- with Cl^-, CN^-, and SH^-, J. Am. Chem. Soc., 1988, 110, 12, 3854, https://doi.org/10.1021/ja00220a022 . [all data]

Larson and McMahon, 1987
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Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO₂-, NO₃-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [all data]

Meot-ner, 1988, 2
Meot-ner, M., The Ionic Hydrogen Bond and Solvation. 7. Interaction Energies of Carbanions with Solvent Molecules, J. Am. Chem. Soc., 1988, 110, 12, 3858, https://doi.org/10.1021/ja00220a022 . [all data]

El-Shall, Olafsdottir, et al., 1991
El-Shall, M.S.; Olafsdottir, S.; Meot-ner (Mautner), M.; Sieck, L.W., Energy effects on cluster ion distributions: Beam expansion and thermochemical studies on mixed clusters of methanol and acetonitrile, Chem. Phys. Lett., 1991, 185, 3-4, 193, https://doi.org/10.1016/S0009-2614(91)85046-Y . [all data]

Honma, Sunderlin, et al., 1993
Honma, K.; Sunderlin, L.S.; Armentrout, P.B., Guided-Ion Beam Studies of the Reactions of Protonated Water Clusters, H(H2O)n+ (n = 1-4), with Acetonitrile, J. Chem. Phys., 1993, 99, 3, 1623, https://doi.org/10.1063/1.465331 . [all data]

Allison, Cramer, et al., 1991
Allison, C.E.; Cramer, J.A.; Hop, C.E.C.A.; Szulejko, J.E.; McMahon, T.B., Strong Hydrogen Bonding in Gas - Phase Ions. A High - Pressure Mass Spectrometric Study of the Proton Affinity, Proton Transfer Kinetics, and Hydrogen - Bonding Capability of Iron Pentacarbonyl, J. Am. Chem. Soc., 1991, 113, 12, 4469, https://doi.org/10.1021/ja00012a014 . [all data]

Deakyne, Meot-Ner (Mautner), et al., 1986
Deakyne, C.A.; Meot-Ner (Mautner), M.; Campbell, C.L.; Hughes, M.G.; Murphy, S.P., Multicomponent Cluster Ions. 1. The Acetonitrile - Water System, J. Chem. Phys., 1986, 90, 4648. [all data]

Meot-Ner (Mautner), 1978
Meot-Ner (Mautner), M., Solvation of the Proton by HCN and CH3CN. Condensation of HCN with Ions in the Gas Phase., J. Am. Chem. Soc., 1978, 100, 15, 4694, https://doi.org/10.1021/ja00483a012 . [all data]

Bromilow, Abboud, et al., 1980
Bromilow, J.; Abboud, J.L.M.; Lebrilla, C.B.; Taft, R.W.; Scorrano, G.; Lucchini, V., Oxonium Ions. Solvation by Single Acetonitrile Molecules in the Gas Phase and by Bulk Solvents, J. Am. Chem. Soc., 1980, 103, 18, 5448, https://doi.org/10.1021/ja00408a028 . [all data]

Grimsrud and Kebarle, 1973
Grimsrud, E.P.; Kebarle, P., Gas Phase Ion Equilibria Studies of the Solvation of the Hydrogen Ion by Methanol, Dimethyl Ether and Water. Effect of Hydrogen Bonding, J. Am. Chem. Soc., 1973, 95, 24, 7939, https://doi.org/10.1021/ja00805a002 . [all data]

Mackay, Rakshit, et al., 1982
Mackay, G.I.; Rakshit, A.B.; Bohme, D.K., An Experimental Study of the Reactivity and Relative Basicity of the Methoxide Anion in the Gas Phase at Room Temperature, and their Perturbation by Methanol Solvent, Can. J. Chem., 1982, 60, 20, 2594, https://doi.org/10.1139/v82-373 . [all data]

Stone and Splinter, 1984
Stone, J.A.; Splinter, D.E., A high-pressure mass spectrometric study of the binding of (CH₃)₃Sn⁺ to lewis bases in the gas phase, Int. J. Mass Spectrom. Ion Processes, 1984, 59, 169. [all data]

Chowdhury, Grimsrud, et al., 1987
Chowdhury, S.; Grimsrud, E.P.; Kebarle, P., Bonding of Charged Delocalized Anions to Protic and Dipolar Aprotic Solvent Molecules, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]

Lias, Liebman, et al., 1984
Lias, S.G.; Liebman, J.F.; Levin, R.D., Evaluated gas phase basicities and proton affinities of molecules heats of formation of protonated molecules, J. Phys. Chem. Ref. Data, 1984, 13, 695. [all data]

Chowdhury, 1987
Chowdhury, S. Grimsrud, Bonding of Charge Delocalized Anions to Protic and Dipolar Aprotic Solvents, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]

Meot-Ner (Mautner) and El-Shall, 1986
Meot-Ner (Mautner), M.; El-Shall, M.S., Ionic Charge Transfer Complexes. 1. Cationic Complexes with Delocalized and Partially Localized pi Systems, J. Am. Chem. Soc., 1986, 108, 15, 4386, https://doi.org/10.1021/ja00275a026 . [all data]

Meot-Ner (Mautner), 1989
Meot-Ner (Mautner), M., Ion DChemistry of Ferrocene. Thermochemistry of Ionization and Protonation and Solvent Clustering. Slow and Entropy - Driven Proton - Transfer Kinetics, J. Am. Chem. Soc., 1989, 111, 8, 2830, https://doi.org/10.1021/ja00190a014 . [all data]

El-Shall and Meot-Ner (Mautner), 1987
El-Shall, M.S.; Meot-Ner (Mautner), M., Ionic Charge Transfer Complexes. 3. Delocalised pi Systems as Electron Acceptors and Donors, J. Phys. Chem., 1987, 91, 5, 1088, https://doi.org/10.1021/j100289a017 . [all data]

Yamabe, Furumiya, et al., 1986
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Sieck, 1985
Sieck, L.W., Thermochemistry of Solvation of NO₂^- and C₆H₅NO₂^- by Polar Molecules in the Vapor Phase. Comparison with Cl^- and Variation with Ligand Structure., J. Phys. Chem., 1985, 89, 25, 5552, https://doi.org/10.1021/j100271a049 . [all data]

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Davidson, W.R.; Kebarle, P., Ionic Solvation by Aprotic Solvents. Gas Phase Solvation of the Alkali Ions by Acetonitrile, J. Am. Chem. Soc., 1976, 98, 20, 6125, https://doi.org/10.1021/ja00436a010 . [all data]

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Dessent, C.E.H.; Bailey, C.G.; Johnson, M.A., Dipole-bound excited states of the I-center dot CH3CN and I-center dot(CH3CN)2 ion-molecule complexes: Evidence for asymmetric solvation, J. Chem. Phys., 1995, 103, 6, 2006, https://doi.org/10.1063/1.469727 . [all data]

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Staley, R.H.; Beauchamp, J.L., Intrinsic Acid - Base Properties of Molecules. Binding Energies of Li+ to pi - and n - Donor Bases, J. Am. Chem. Soc., 1975, 97, 20, 5920, https://doi.org/10.1021/ja00853a050 . [all data]

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Notes

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Symbols used in this document:

T Temperature

Δ_rG° Free energy of reaction at standard conditions

Δ_rH° Enthalpy of reaction at standard conditions

Δ_rS° Entropy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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T	Temperature
Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions
Δ_rS°	Entropy of reaction at standard conditions

Acetonitrile

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Ion clustering data

Clustering reactions

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Free energy of reaction

Mass spectrum (electron ionization)

Spectrum

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