Methylamine

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

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

Data compiled by: Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δfgas-5.62kcal/molN/AAston, Siller, et al., 1937Value computed using ΔfHliquid° value of -47.3±0.46 kj/mol from Aston, Siller, et al., 1937 and ΔvapH° value of 23.85 kj/mol from missing citation.
Δfgas-2.92kcal/molN/ALemoult, 1907Value computed using ΔfHliquid° value of -36 kj/mol from Lemoult, 1907 and ΔvapH° value of 23.85 kj/mol from missing citation.

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-11.3 ± 0.11kcal/molN/ACox and Pilcher, 1970Review; Unpublished work J. Jaffe; ALS
Δfliquid-11.3 ± 0.11kcal/molCcbAston, Siller, et al., 1937Unpublished work J. Jaffe; ALS
Δfliquid-8.7kcal/molCcbLemoult, 1907ALS
Quantity Value Units Method Reference Comment
Δcliquid-253.54 ± 0.09kcal/molN/ACox and Pilcher, 1970Review; Unpublished work J. Jaffe; ALS
Δcliquid-253.54 ± 0.09kcal/molCcbAston, Siller, et al., 1937Unpublished work J. Jaffe; ALS
Δcliquid-261.4kcal/molCcbMuller, 1910At 288 K; ALS
Δcliquid-256.9kcal/molCcbLemoult, 1907ALS
Quantity Value Units Method Reference Comment
liquid35.90cal/mol*KN/AAston, Siller, et al., 1937, 2For superheated liquid, using extrapolated heat capacities.; DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
24.331259.28Aston, Siller, et al., 1937, 2T = 14 to 259 K. Value is unsmoothed experimental datum.; DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil266.8 ± 0.3KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus180.05KN/ARoberts, Emeleus, et al., 1939Uncertainty assigned by TRC = 0.4 K; TRC
Tfus180.05KN/AEmeleus and Briscoe, 1937Uncertainty assigned by TRC = 0.3 K; TRC
Tfus179.7KN/AMcNeight and Smyth, 1936Uncertainty assigned by TRC = 0.07 K; TRC
Quantity Value Units Method Reference Comment
Ttriple179.7KN/AAston, Siller, et al., 1937, 3Uncertainty assigned by TRC = 0.07 K; T0/K=273.16; TRC
Quantity Value Units Method Reference Comment
Tc430.85KN/ALi and Kiran, 1988Uncertainty assigned by TRC = 0.5 K; TRC
Tc430.7KN/AKay and Young, 1974Uncertainty assigned by TRC = 0.2 K; TRC
Tc430.05KN/ABerthoud, 1917Uncertainty assigned by TRC = 0.7 K; TRC
Quantity Value Units Method Reference Comment
Pc75.50atmN/ALi and Kiran, 1988Uncertainty assigned by TRC = 0.987 atm; TRC
Pc75.14atmN/AKay and Young, 1974Uncertainty assigned by TRC = 0.04 atm; TRC
Pc73.6000atmN/ABerthoud, 1917Uncertainty assigned by TRC = 0.6000 atm; TRC
Quantity Value Units Method Reference Comment
Vc0.1385l/molN/ALi and Kiran, 1988Uncertainty assigned by TRC = 0.001 l/mol; TRC
Quantity Value Units Method Reference Comment
Δvap5.700kcal/molN/AMajer and Svoboda, 1985 

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
6.1690266.84N/AAston, Siller, et al., 1937, 2DH
6.12266.8N/AMajer and Svoboda, 1985 
5.93334.AStephenson and Malanowski, 1987Based on data from 319. to 381. K.; AC
5.62388.AStephenson and Malanowski, 1987Based on data from 373. to 430. K.; AC
6.24278.AStephenson and Malanowski, 1987Based on data from 263. to 329. K.; AC
6.50258.AStephenson and Malanowski, 1987Based on data from 223. to 273. K. See also Dykyj, 1970.; AC
6.169 ± 0.030266.84VAston, Siller, et al., 1937ALS
6.55252.N/AAston, Siller, et al., 1937, 2Based on data from 190. to 267. K. See also Boublik, Fried, et al., 1984.; AC

Entropy of vaporization

ΔvapS (cal/mol*K) Temperature (K) Reference Comment
23.12266.84Aston, Siller, et al., 1937, 2DH

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
190.06 to 266.924.5141034.977-37.574Aston, Siller, et al., 1937, 2Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
1.466179.70Aston, Siller, et al., 1937, 2DH
1.47179.7Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
8.157179.70Aston, Siller, et al., 1937, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, References, Notes

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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
B - John E. Bartmess
MS - José A. Martinho Simões
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Lithium ion (1+) + Methylamine = (Lithium ion (1+) • Methylamine)

By formula: Li+ + CH5N = (Li+ • CH5N)

Quantity Value Units Method Reference Comment
Δr41.1kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KN/AWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity Value Units Method Reference Comment
Δr33.3kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M

C3H9Sn+ + Methylamine = (C3H9Sn+ • Methylamine)

By formula: C3H9Sn+ + CH5N = (C3H9Sn+ • CH5N)

Quantity Value Units Method Reference Comment
Δr42.1kcal/molPHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr30.7cal/mol*KN/AStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
26.0525.PHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

Potassium ion (1+) + Methylamine = (Potassium ion (1+) • Methylamine)

By formula: K+ + CH5N = (K+ • CH5N)

Quantity Value Units Method Reference Comment
Δr19.1kcal/molHPMSDavidson and Kebarle, 1976gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976, 2; M
Quantity Value Units Method Reference Comment
Δr21.8cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976, 2; M
Quantity Value Units Method Reference Comment
Δr12.7kcal/molHPMSDavidson and Kebarle, 1976gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976, 2; M

Sodium ion (1+) + Methylamine = (Sodium ion (1+) • Methylamine)

By formula: Na+ + CH5N = (Na+ • CH5N)

Quantity Value Units Method Reference Comment
Δr26.3 ± 0.2kcal/molHPMSHoyau, Norrman, et al., 1999RCD
Δr32.1kcal/molHPMSGuo and Castleman, 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr22600.cal/mol*KHPMSHoyau, Norrman, et al., 1999RCD
Δr30.3cal/mol*KHPMSGuo and Castleman, 1990gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
19.5298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

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

By formula: (CH6N+ • 2CH5N) + CH5N = (CH6N+ • 3CH5N)

Quantity Value Units Method Reference Comment
Δr13.4kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr17.0kcal/molHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr25.1cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr41.6cal/mol*KHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M

(CH6N+ • Methylamine) + Methylamine = (CH6N+ • 2Methylamine)

By formula: (CH6N+ • CH5N) + CH5N = (CH6N+ • 2CH5N)

Quantity Value Units Method Reference Comment
Δr16.0kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr19.2kcal/molHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr22.9cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr39.9cal/mol*KHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M

CH4N- + Hydrogen cation = Methylamine

By formula: CH4N- + H+ = CH5N

Quantity Value Units Method Reference Comment
Δr402.0 ± 2.6kcal/molD-EARadisic, Xu, et al., 2002gas phase; B
Δr403.21 ± 0.82kcal/molG+TSMacKay, Hemsworth, et al., 1976gas phase; B
Quantity Value Units Method Reference Comment
Δr394.5 ± 2.7kcal/molH-TSRadisic, Xu, et al., 2002gas phase; B
Δr395.70 ± 0.70kcal/molIMREMacKay, Hemsworth, et al., 1976gas phase; B

C3H9Si+ + Methylamine = (C3H9Si+ • Methylamine)

By formula: C3H9Si+ + CH5N = (C3H9Si+ • CH5N)

Quantity Value Units Method Reference Comment
Δr55.4kcal/molPHPMSLi and Stone, 1990gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H5COOC2H5; Wojtyniak and Stone, 1986; M
Quantity Value Units Method Reference Comment
Δr38.1cal/mol*KPHPMSLi and Stone, 1990gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H5COOC2H5; Wojtyniak and Stone, 1986; M

CH6N+ + Methylamine = (CH6N+ • Methylamine)

By formula: CH6N+ + CH5N = (CH6N+ • CH5N)

Quantity Value Units Method Reference Comment
Δr25.4kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr21.7kcal/molPHPMSYamdagni and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr27.3cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr23.6cal/mol*KPHPMSYamdagni and Kebarle, 1973gas phase; M

C6H12NO3+ + Methylamine = (C6H12NO3+ • Methylamine)

By formula: C6H12NO3+ + CH5N = (C6H12NO3+ • CH5N)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity Value Units Method Reference Comment
Δr28.6kcal/molPHPMSMeot-Ner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Δr19.9cal/mol*KPHPMSMeot-Ner, 1984gas phase; M

(Lead ion (1+) • Methylamine) + Methylamine = (Lead ion (1+) • 2Methylamine)

By formula: (Pb+ • CH5N) + CH5N = (Pb+ • 2CH5N)

Quantity Value Units Method Reference Comment
Δr19.1 ± 0.2kcal/molHPMSGuo and Castleman, 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr19.5cal/mol*KHPMSGuo and Castleman, 1990gas phase; M

Lead ion (1+) + Methylamine = (Lead ion (1+) • Methylamine)

By formula: Pb+ + CH5N = (Pb+ • CH5N)

Quantity Value Units Method Reference Comment
Δr35.4 ± 0.3kcal/molHPMSGuo and Castleman, 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr30.0cal/mol*KHPMSGuo and Castleman, 1990gas phase; M

(CH6N+ • 3Methylamine) + Methylamine = (CH6N+ • 4Methylamine)

By formula: (CH6N+ • 3CH5N) + CH5N = (CH6N+ • 4CH5N)

Quantity Value Units Method Reference Comment
Δr7.8kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr21.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M

C2H8N+ + Methylamine = (C2H8N+ • Methylamine)

By formula: C2H8N+ + CH5N = (C2H8N+ • CH5N)

Quantity Value Units Method Reference Comment
Δr22.4kcal/molPHPMSYamdagni and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr29.2cal/mol*KPHPMSYamdagni and Kebarle, 1973gas phase; M

C5H11BrMg (solution) + Methylamine (solution) = CH4BrMgN (solution) + Pentane (solution)

By formula: C5H11BrMg (solution) + CH5N (solution) = CH4BrMgN (solution) + C5H12 (solution)

Quantity Value Units Method Reference Comment
Δr-31.19 ± 0.60kcal/molRSCHolm, 1983solvent: Diethyl ether; MS

2Methylamine = Dimethylamine + Ammonia

By formula: 2CH5N = C2H7N + H3N

Quantity Value Units Method Reference Comment
Δr-4.70kcal/molEqkIssoire and Long, 1960gas phase; ALS

2Ethylamine = Methylamine + Methylamine, N,N-dimethyl-

By formula: 2C2H7N = CH5N + C3H9N

Quantity Value Units Method Reference Comment
Δr-3.15kcal/molEqkIssoire and Long, 1960gas phase; ALS

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, References, Notes

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

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to CH5N+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)8.9 ± 0.1eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)214.9kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity206.6kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.9PEAue and Bowers, 1979LLK
9.45EIBaldwin, Loudon, et al., 1977LLK
8.9 ± 0.1PEAue, Webb, et al., 1976LLK
9.08PEVovna and Vilesov, 1974LLK
8.80 ± 0.02PEMaier and Turner, 1973LLK
9.65PEElbel, Dieck, et al., 1982Vertical value; LBLHLM
9.0PEBieri, Asbrink, et al., 1982Vertical value; LBLHLM
9.58PEUtsunomiya, Kobayashi, et al., 1980Vertical value; LLK
9.58PEKobayashi, 1978Vertical value; LLK
9.64PEKimura and Osafune, 1975Vertical value; LLK
9.64PEKatsumata, Iwai, et al., 1973Vertical value; LLK
9.65PEOgata, Onizuka, et al., 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH2N+15.2 ± 0.3H2+HEICollin and Franskin, 1966RDSH
CH2N+[CNH2+]14.0 ± 0.4?EIBurgers, Holmes, et al., 1984LBLHLM
CH3+14.5NH2EISenSharma and Franklin, 1973LLK
CH3+14.7NH2EIHaney and Franklin, 1968RDSH
CH3N+13.3 ± 0.2H2EICollin and Franskin, 1966RDSH
CH4N+10.18HEILossing, Lam, et al., 1981LLK
CH4N+10.70HEILoudon and Webb, 1977LLK
CH4N+10.55HEILoudon and Webb, 1977LLK
CH4N+10.82 ± 0.15HEICollin and Franskin, 1966RDSH
CH4N+10.3 ± 0.1HEITaft, Martin, et al., 1965RDSH
CH5N+8.99?PICornford, Frost, et al., 1971LLK
CH5N+9.29?CTSSlifkin and Allison, 1967RDSH
CH5N+9.36 ± 0.02?EICollin and Franskin, 1966RDSH
CH5N+8.97 ± 0.02?PIWatanabe and Mottl, 1957RDSH
H2N+15.9CH3EISenSharma and Franklin, 1973LLK
NH2+15.7CH3EIHaney and Franklin, 1968RDSH

De-protonation reactions

CH4N- + Hydrogen cation = Methylamine

By formula: CH4N- + H+ = CH5N

Quantity Value Units Method Reference Comment
Δr402.0 ± 2.6kcal/molD-EARadisic, Xu, et al., 2002gas phase; B
Δr403.21 ± 0.82kcal/molG+TSMacKay, Hemsworth, et al., 1976gas phase; B
Quantity Value Units Method Reference Comment
Δr394.5 ± 2.7kcal/molH-TSRadisic, Xu, et al., 2002gas phase; B
Δr395.70 ± 0.70kcal/molIMREMacKay, Hemsworth, et al., 1976gas phase; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes

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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

CH6N+ + Methylamine = (CH6N+ • Methylamine)

By formula: CH6N+ + CH5N = (CH6N+ • CH5N)

Quantity Value Units Method Reference Comment
Δr25.4kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr21.7kcal/molPHPMSYamdagni and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr27.3cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr23.6cal/mol*KPHPMSYamdagni and Kebarle, 1973gas phase; M

(CH6N+ • Methylamine) + Methylamine = (CH6N+ • 2Methylamine)

By formula: (CH6N+ • CH5N) + CH5N = (CH6N+ • 2CH5N)

Quantity Value Units Method Reference Comment
Δr16.0kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr19.2kcal/molHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr22.9cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr39.9cal/mol*KHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M

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

By formula: (CH6N+ • 2CH5N) + CH5N = (CH6N+ • 3CH5N)

Quantity Value Units Method Reference Comment
Δr13.4kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr17.0kcal/molHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr25.1cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M
Δr41.6cal/mol*KHPMSHolland and Castleman, 1982gas phase; Entropy change is questionable; M

(CH6N+ • 3Methylamine) + Methylamine = (CH6N+ • 4Methylamine)

By formula: (CH6N+ • 3CH5N) + CH5N = (CH6N+ • 4CH5N)

Quantity Value Units Method Reference Comment
Δr7.8kcal/molPHPMSMeot-Ner (Mautner), 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr21.5cal/mol*KPHPMSMeot-Ner (Mautner), 1992gas phase; M

C2H8N+ + Methylamine = (C2H8N+ • Methylamine)

By formula: C2H8N+ + CH5N = (C2H8N+ • CH5N)

Quantity Value Units Method Reference Comment
Δr22.4kcal/molPHPMSYamdagni and Kebarle, 1973gas phase; M
Quantity Value Units Method Reference Comment
Δr29.2cal/mol*KPHPMSYamdagni and Kebarle, 1973gas phase; M

C3H9Si+ + Methylamine = (C3H9Si+ • Methylamine)

By formula: C3H9Si+ + CH5N = (C3H9Si+ • CH5N)

Quantity Value Units Method Reference Comment
Δr55.4kcal/molPHPMSLi and Stone, 1990gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H5COOC2H5; Wojtyniak and Stone, 1986; M
Quantity Value Units Method Reference Comment
Δr38.1cal/mol*KPHPMSLi and Stone, 1990gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H5COOC2H5; Wojtyniak and Stone, 1986; M

C3H9Sn+ + Methylamine = (C3H9Sn+ • Methylamine)

By formula: C3H9Sn+ + CH5N = (C3H9Sn+ • CH5N)

Quantity Value Units Method Reference Comment
Δr42.1kcal/molPHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr30.7cal/mol*KN/AStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
26.0525.PHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

C6H12NO3+ + Methylamine = (C6H12NO3+ • Methylamine)

By formula: C6H12NO3+ + CH5N = (C6H12NO3+ • CH5N)

Bond type: Hydrogen bonds with polydentate bonding in positive ions

Quantity Value Units Method Reference Comment
Δr28.6kcal/molPHPMSMeot-Ner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Δr19.9cal/mol*KPHPMSMeot-Ner, 1984gas phase; M

Potassium ion (1+) + Methylamine = (Potassium ion (1+) • Methylamine)

By formula: K+ + CH5N = (K+ • CH5N)

Quantity Value Units Method Reference Comment
Δr19.1kcal/molHPMSDavidson and Kebarle, 1976gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976, 2; M
Quantity Value Units Method Reference Comment
Δr21.8cal/mol*KHPMSDavidson and Kebarle, 1976gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976, 2; M
Quantity Value Units Method Reference Comment
Δr12.7kcal/molHPMSDavidson and Kebarle, 1976gas phase; switching reaction(K+)H2O; Davidson and Kebarle, 1976, 2; M

Lithium ion (1+) + Methylamine = (Lithium ion (1+) • Methylamine)

By formula: Li+ + CH5N = (Li+ • CH5N)

Quantity Value Units Method Reference Comment
Δr41.1kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity Value Units Method Reference Comment
Δr26.cal/mol*KN/AWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M
Quantity Value Units Method Reference Comment
Δr33.3kcal/molICRWoodin and Beauchamp, 1978gas phase; switching reaction(Li+)H2O, Entropy change calculated or estimated; Dzidic and Kebarle, 1970 interpolated; M

Sodium ion (1+) + Methylamine = (Sodium ion (1+) • Methylamine)

By formula: Na+ + CH5N = (Na+ • CH5N)

Quantity Value Units Method Reference Comment
Δr26.3 ± 0.2kcal/molHPMSHoyau, Norrman, et al., 1999RCD
Δr32.1kcal/molHPMSGuo and Castleman, 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr22600.cal/mol*KHPMSHoyau, Norrman, et al., 1999RCD
Δr30.3cal/mol*KHPMSGuo and Castleman, 1990gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
19.5298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

Lead ion (1+) + Methylamine = (Lead ion (1+) • Methylamine)

By formula: Pb+ + CH5N = (Pb+ • CH5N)

Quantity Value Units Method Reference Comment
Δr35.4 ± 0.3kcal/molHPMSGuo and Castleman, 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr30.0cal/mol*KHPMSGuo and Castleman, 1990gas phase; M

(Lead ion (1+) • Methylamine) + Methylamine = (Lead ion (1+) • 2Methylamine)

By formula: (Pb+ • CH5N) + CH5N = (Pb+ • 2CH5N)

Quantity Value Units Method Reference Comment
Δr19.1 ± 0.2kcal/molHPMSGuo and Castleman, 1990gas phase; M
Quantity Value Units Method Reference Comment
Δr19.5cal/mol*KHPMSGuo and Castleman, 1990gas phase; M

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

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

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Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References