MeCO2 anion

• Formula: C₂H₃O₂^-
• Molecular weight: 59.0446
• IUPAC Standard InChI:
  

  InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)/p-1 Download the identifier in a file.

• IUPAC Standard InChIKey: QTBSBXVTEAMEQO-UHFFFAOYSA-M
• CAS Registry Number: 71-50-1
• Chemical structure:
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Ion clustering data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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

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Clustering reactions

 +  = (  )

By formula: C₂H₃O₂^- + CHN = (C₂H₃O₂^-  CHN)

Quantity	Value	Units	Method	Reference	Comment
rH°	22.2 ± 1.0	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	23.5	cal/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M

(  ) +  = (  2)

By formula: (C₂H₃O₂^-  CHN) + CHN = (C₂H₃O₂^-  2CHN)

Quantity	Value	Units	Method	Reference	Comment
rH°	16.6 ± 1.0	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	20.2	cal/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	10.60	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(  2) +  = (  3)

By formula: (C₂H₃O₂^-  2CHN) + CHN = (C₂H₃O₂^-  3CHN)

Quantity	Value	Units	Method	Reference	Comment
rH°	14.8 ± 1.0	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.6	cal/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	7.20	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(  3) +  = (  4)

By formula: (C₂H₃O₂^-  3CHN) + CHN = (C₂H₃O₂^-  4CHN)

Quantity	Value	Units	Method	Reference	Comment
rH°	12.0 ± 1.0	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	27.2	cal/mol*K	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	3.90	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; B

(  4) +  = (  5)

By formula: (C₂H₃O₂^-  4CHN) + CHN = (C₂H₃O₂^-  5CHN)

Quantity	Value	Units	Method	Reference	Comment
rH°	9.8 ± 1.0	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy estimated; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.	cal/mol*K	N/A	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	2.40	kcal/mol	TDAs	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy estimated; B

Free energy of reaction

rG° (kcal/mol)	T (K)	Method	Reference	Comment
4.5	213.	PHPMS	Meot-ner, Cybulski, et al., 1988	gas phase; Entropy change calculated or estimated; M

 +  = (  )

By formula: C₂H₃O₂^- + CH₄O = (C₂H₃O₂^-  CH₄O)

Quantity	Value	Units	Method	Reference	Comment
rH°	17.6 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
rG°	10.5 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + CH₄S = (C₂H₃O₂^-  CH₄S)

Quantity	Value	Units	Method	Reference	Comment
rH°	14.9 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	22.8	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	8.1 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

(  4294967295) +  =

By formula: (C₂H₃O₂^-  4294967295CO₂) + CO₂ = C₂H₃O₂^-

Quantity	Value	Units	Method	Reference	Comment
rH°	59.7 ± 2.5	kcal/mol	CIDC	Wenthold and Squires, 1994	gas phase; B

 +  = (  )

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

Quantity	Value	Units	Method	Reference	Comment
rH°	14.8 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	18.0	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	9.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + C₂H₄O = (C₂H₃O₂^-  C₂H₄O)

Bond type: Hydrogen bonds of deprotonated acids to ketones/

Quantity	Value	Units	Method	Reference	Comment
rH°	16.3 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	21.7	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	9.8 ± 2.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + C₂H₄O₂ = (C₂H₃O₂^-  C₂H₄O₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	29.3	kcal/mol	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	29.6	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M

(  ) +  = (  2)

By formula: (C₂H₃O₂^-  C₂H₄O₂) + C₂H₄O₂ = (C₂H₃O₂^-  2C₂H₄O₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	19.6	kcal/mol	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	28.6	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M

(  2) +  = (  3)

By formula: (C₂H₃O₂^-  2C₂H₄O₂) + C₂H₄O₂ = (C₂H₃O₂^-  3C₂H₄O₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	16.2	kcal/mol	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	33.2	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M

(    ) +  = (  2  )

By formula: (C₂H₃O₂^-  C₂H₄O₂  H₂O) + C₂H₄O₂ = (C₂H₃O₂^-  2C₂H₄O₂  H₂O)

Quantity	Value	Units	Method	Reference	Comment
rH°	19.69 ± 0.50	kcal/mol	N/A	Meot-ner, Elmore, et al., 1999	gas phase; B
rH°	16.2 ± 1.0	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
rG°	10.81	kcal/mol	TDAs	Meot-ner, Elmore, et al., 1999	gas phase; B
rG°	6.2 ± 1.0	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

(  2  ) +  = (  3  )

By formula: (C₂H₃O₂^-  2C₂H₄O₂  H₂O) + C₂H₄O₂ = (C₂H₃O₂^-  3C₂H₄O₂  H₂O)

Quantity	Value	Units	Method	Reference	Comment
rH°	12.50 ± 0.60	kcal/mol	N/A	Meot-ner, Elmore, et al., 1999	gas phase; B
rH°	16.2 ± 1.0	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
rG°	5.73	kcal/mol	TDAs	Meot-ner, Elmore, et al., 1999	gas phase; B
rG°	6.2 ± 1.0	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + C₂H₆O = (C₂H₃O₂^-  C₂H₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	20.7 ± 1.0	kcal/mol	N/A	Meot-Ner and Sieck, 1986	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	29.2	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	11.9 ± 1.6	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + C₃H₄N₂ = (C₂H₃O₂^-  C₃H₄N₂)

Quantity	Value	Units	Method	Reference	Comment
rH°	27.7	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	24.4	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

 +  = (  )

By formula: C₂H₃O₂^- + C₃H₆O = (C₂H₃O₂^-  C₃H₆O)

Bond type: Hydrogen bonds of deprotonated acids to ketones/

Quantity	Value	Units	Method	Reference	Comment
rH°	15.7 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	21.9	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	9.1 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

(  ) +  = (  2)

By formula: (C₂H₃O₂^-  C₃H₆O) + C₃H₆O = (C₂H₃O₂^-  2C₃H₆O)

Bond type: Hydrogen bonds of deprotonated acids to ketones/

Quantity	Value	Units	Method	Reference	Comment
rH°	10.8	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	17.9	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M

 +  = (  )

By formula: C₂H₃O₂^- + C₃H₇NO = (C₂H₃O₂^-  C₃H₇NO)

Bond type: Hydrogen bonds of deprotonated acids to amides

Quantity	Value	Units	Method	Reference	Comment
rH°	25.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	27.4	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	17.2 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

(  ) +  = (  2)

By formula: (C₂H₃O₂^-  C₃H₇NO) + C₃H₇NO = (C₂H₃O₂^-  2C₃H₇NO)

Bond type: Hydrogen bonds of deprotonated acids to amides

Quantity	Value	Units	Method	Reference	Comment
rH°	17.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	21.8	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

 +  = (  )

By formula: C₂H₃O₂^- + C₄H₅N = (C₂H₃O₂^-  C₄H₅N)

Quantity	Value	Units	Method	Reference	Comment
rH°	24.0 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.1	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	16.5 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

(  ) +  = (  2)

By formula: (C₂H₃O₂^-  C₄H₅N) + C₄H₅N = (C₂H₃O₂^-  2C₄H₅N)

Quantity	Value	Units	Method	Reference	Comment
rH°	17.9	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	24.2	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M

 +  = (  )

By formula: C₂H₃O₂^- + C₆H₆O = (C₂H₃O₂^-  C₆H₆O)

Quantity	Value	Units	Method	Reference	Comment
rH°	26.1 ± 1.0	kcal/mol	N/A	Meot-Ner and Sieck, 1986	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	24.0	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	18.9 ± 1.6	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + C₆H₁₁NO₃ = (C₂H₃O₂^-  C₆H₁₁NO₃)

Quantity	Value	Units	Method	Reference	Comment
rH°	30.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	33.8	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

(  ) +  = (  2)

By formula: (C₂H₃O₂^-  C₆H₁₁NO₃) + C₆H₁₁NO₃ = (C₂H₃O₂^-  2C₆H₁₁NO₃)

Quantity	Value	Units	Method	Reference	Comment
rH°	21.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	34.1	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

 +  = (  )

By formula: C₂H₃O₂^- + C₆H₁₁NO₃ = (C₂H₃O₂^-  C₆H₁₁NO₃)

Quantity	Value	Units	Method	Reference	Comment
rH°	31.4 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
rG°	20.7 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

(  ) +  = (    )

By formula: (C₂H₃O₂^-  C₆H₁₁NO₃) + H₂O = (C₂H₃O₂^-  H₂O  C₆H₁₁NO₃)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	13.2	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	25.4	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

 +  = (  )

By formula: C₂H₃O₂^- + C₆H₁₄O₃ = (C₂H₃O₂^-  C₆H₁₄O₃)

Quantity	Value	Units	Method	Reference	Comment
rH°	15.1 ± 1.0	kcal/mol	N/A	Meot-Ner and Sieck, 1986	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	18.5	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	9.6 ± 1.6	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + C₈H₇N = (C₂H₃O₂^-  C₈H₇N)

Quantity	Value	Units	Method	Reference	Comment
rH°	27.9 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B,M
Quantity	Value	Units	Method	Reference	Comment
rS°	30.4	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	18.8 ± 1.0	kcal/mol	TDAs	Meot-ner, 1988	gas phase; B

 +  = (  )

By formula: C₂H₃O₂^- + H₂O = (C₂H₃O₂^-  H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	16.40 ± 0.80	kcal/mol	TDAs	Wincel, 2008	gas phase; B
rH°	15.9 ± 1.0	kcal/mol	N/A	Meot-ner, Elmore, et al., 1999	gas phase; B
rH°	16.0 ± 1.0	kcal/mol	N/A	Meot-Ner and Sieck, 1986	gas phase; B,M
rH°	16.4 ± 1.5	kcal/mol	TDAs	Blades, Klassen, et al., 1995	gas phase; T: 293 K. «DELTA»Saff approx. 24 cal/mol-K; B
rH°	15.8	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	20.3	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
rS°	22.5	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; ion given as C2H3COO- in paper by error; M
Quantity	Value	Units	Method	Reference	Comment
rG°	9.0 ± 1.4	kcal/mol	N/A	Wincel, 2008	gas phase; B
rG°	9.52	kcal/mol	TDAs	Meot-ner, Elmore, et al., 1999	gas phase; B
rG°	9.3 ± 1.6	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B
rG°	9.40 ± 0.30	kcal/mol	TDAs	Blades, Klassen, et al., 1995	gas phase; T: 293 K. «DELTA»Saff approx. 24 cal/mol-K; B,M

(  ) +  = (    )

By formula: (C₂H₃O₂^-  H₂O) + C₂H₄O₂ = (C₂H₃O₂^-  C₂H₄O₂  H₂O)

Quantity	Value	Units	Method	Reference	Comment
rH°	29.3 ± 1.0	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B
Quantity	Value	Units	Method	Reference	Comment
rG°	20.4 ± 1.6	kcal/mol	TDAs	Meot-Ner and Sieck, 1986	gas phase; B

(  ) +  = (    )

By formula: (C₂H₃O₂^-  H₂O) + C₆H₁₁NO₃ = (C₂H₃O₂^-  C₆H₁₁NO₃  H₂O)

Quantity	Value	Units	Method	Reference	Comment
rH°	27.6	kcal/mol	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	38.9	cal/mol*K	PHPMS	Meot-Ner (Mautner), 1988	gas phase; M

(  ) +  = (  2)

By formula: (C₂H₃O₂^-  H₂O) + H₂O = (C₂H₃O₂^-  2H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	12.9 ± 1.0	kcal/mol	N/A	Meot-ner, Elmore, et al., 1999	gas phase; B
rH°	13.8 ± 1.5	kcal/mol	TDAs	Blades, Klassen, et al., 1995	gas phase; T: 293 K. «DELTA»Saff approx. 24 cal/mol-K; B
rH°	12.8	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; M
rH°	12.9	kcal/mol	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rS°	19.1	cal/mol*K	PHPMS	Meot-ner, 1988	gas phase; M
rS°	20.5	cal/mol*K	PHPMS	Meot-Ner and Sieck, 1986	gas phase; M
Quantity	Value	Units	Method	Reference	Comment
rG°	7.00	kcal/mol	TDAs	Meot-ner, Elmore, et al., 1999	gas phase; B
rG°	6.80 ± 0.30	kcal/mol	TDAs	Blades, Klassen, et al., 1995	gas phase; T: 293 K. «DELTA»Saff approx. 24 cal/mol-K; B,M

(  2) +  = (  3)

By formula: (C₂H₃O₂^-  2H₂O) + H₂O = (C₂H₃O₂^-  3H₂O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity	Value	Units	Method	Reference	Comment
rH°	11.8 ± 1.0	kcal/mol	N/A	Meot-ner, Elmore, et al., 1999	gas phase; B
rH°	12.2 ± 1.5	kcal/mol	TDAs	Blades, Klassen, et al., 1995	gas phase; T: 293 K. «DELTA»Saff approx. 24 cal/mol-K; B
rH°	11.8	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rS°	20.	cal/mol*K	N/A	Meot-ner, 1988	gas phase; Entropy change calculated or estimated; M
Quantity	Value	Units	Method	Reference	Comment
rG°	5.84	kcal/mol	TDAs	Meot-ner, Elmore, et al., 1999	gas phase; B
rG°	5.20 ± 0.30	kcal/mol	TDAs	Blades, Klassen, et al., 1995	gas phase; T: 293 K. «DELTA»Saff approx. 24 cal/mol-K; B,M
rG°	5.9	kcal/mol	PHPMS	Meot-ner, 1988	gas phase; Entropy change calculated or estimated; M

References

Go To: Top, Ion clustering data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Meot-ner, Cybulski, et al., 1988
Meot-ner, M.; Cybulski, S.M.; Scheiner, S.; Liebman, J.F., Is CN^- Significantly Anisotropic? Comparison of CN^- vs. Cl^-: Clustering with HCN and Condensed Phase Thermochemistry, J. Phys. Chem., 1988, 92, 10, 2738, https://doi.org/10.1021/j100321a009 . [all data]

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]

Wenthold and Squires, 1994
Wenthold, P.G.; Squires, R.R., Gas-phase properties and reactivity of the acetate radical anion. Determination of the C-H bond strengths in acetic acid and acetate ion, J. Am. Chem. Soc., 1994, 116, 26, 11890, https://doi.org/10.1021/ja00105a032 . [all data]

Meot-Ner and Sieck, 1986
Meot-Ner, M.; Sieck, L.W., The ionic hydrogen bond and ion solvation. 5. OH...O^- bonds. Gas phase solvation and clustering of alkoxide and carboxylate anions, J. Am. Chem. Soc., 1986, 108, 7525. [all data]

Meot-ner, Elmore, et al., 1999
Meot-ner, M.; Elmore, D.E.; Scheiner, S., Ionic Hydrogen Bond Effects on the Acidities, Basicities, Solvation, Solvent Bridging and Self-assembly of Carboxylic Groups, J. Am. Chem. Soc., 1999, 121, 33, 7625, https://doi.org/10.1021/ja982173i . [all data]

Meot-Ner (Mautner), 1988
Meot-Ner (Mautner), M., Models for Strong Interactions in Proteins and Enzymes. 2. Interactions of Ions with the Peptide Link and Imidazole, J. Am. Chem. Soc., 1988, 110, 10, 3075, https://doi.org/10.1021/ja00218a014 . [all data]

Wincel, 2008
Wincel, H., Hydration energies of deprotonated amino acids from gas phase equilibria measurements, J. Am. Soc. Mass Spectrom., 2008, 19, 8, 1091-1097, https://doi.org/10.1016/j.jasms.2008.05.014 . [all data]

Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P., Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I, J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019 . [all data]

Notes

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• Symbols used in this document:
  

  T	Temperature
  rG°	Free energy of reaction at standard conditions
  rH°	Enthalpy of reaction at standard conditions
  rS°	Entropy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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