Chloromethane

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-83.68kJ/molReviewChase, 1998Data last reviewed in June, 1972
Δfgas-81.9 ± 1.5kJ/molReviewManion, 2002adopted flame calorimetry data of Fletcher and Pilcher, 1971 with increased uncertainty to reflect other data; DRB
Δfgas-81.96 ± 0.67kJ/molCcbFletcher and Pilcher, 1971, 2ALS
Δfgas-85.90 ± 0.59kJ/molChydLacher, Emery, et al., 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -86.33 ± 0.59 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Δcgas-764.0 ± 0.50kJ/molCcbFletcher and Pilcher, 1971, 2ALS
Quantity Value Units Method Reference Comment
gas,1 bar234.36J/mol*KReviewChase, 1998Data last reviewed in June, 1972

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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View table.

Temperature (K) 298. to 1200.1200. to 6000.
A 3.52469088.66691
B 136.927710.06834
C -82.14196-1.928737
D 20.227970.128191
E 0.278032-19.76840
F -89.19995-152.5311
G 202.8391286.4015
H -83.68000-83.68000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1972 Data last reviewed in June, 1972

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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:
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-102.4 ± 1.5kJ/molReviewManion, 2002derived from recommended ΔfHgas° and ΔvapH°; DRB
Quantity Value Units Method Reference Comment
liquid140.08J/mol*KN/AMesserly and Aston, 1940DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
80.8293.15Awberg and Griffiths, 1940T = 243 to 303 K. Cp reported at 20°C = 1.598 J/g*K and at 30°C = 1.632 J/g*K.; DH
75.60249.67Messerly and Aston, 1940T = 12 to 249.67 K. Value is unsmoothed experimental datum.; DH
81.2298.Shorthose, 1924T = -30 to 40°C.; DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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
DRB - Donald R. Burgess, Jr.
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
Tboil247. ± 10.KAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus182.KN/AAwbery, 1941Uncertainty assigned by TRC = 1.5 K; TRC
Tfus175.55KN/ATimmermans, 1921Uncertainty assigned by TRC = 0.4 K; TRC
Tfus176.5KN/ATimmermans, 1911Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Ttriple175.43KN/AMesserly and Aston, 1940, 2Uncertainty assigned by TRC = 0.07 K; from T vs 1/f in a calorimter, Resistance thermomter and thermocouple gave same temperature, temp. scale in previous publication; TRC
Ttriple175.44KN/AMesserly and Aston, 1940, 2Uncertainty assigned by TRC = 0.05 K; from T vs 1/f in adiabatic calorimeter, temp. meas. with resistance thermometer & two thermocouples, temp scale described in previous publication; TRC
Quantity Value Units Method Reference Comment
Ptriple0.008700barN/AMesserly and Aston, 1940, 2Uncertainty assigned by TRC = 0.000013 bar; TRC
Quantity Value Units Method Reference Comment
Tc416. ± 1.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Pc67.144barN/AMansoorian, Hall, et al., 1981Uncertainty assigned by TRC = 0.0067 bar; VP measured up to 408 K,; TRC
Pc66.7924barN/AHsu and McKetta, 1964Uncertainty assigned by TRC = 0.0405 bar; TRC
Pc66.80barN/ALeduc, 1909Uncertainty assigned by TRC = 2.0265 bar; TRC
Pc74.00barN/AVincent and Chappuis, 1886Uncertainty assigned by TRC = 3.0398 bar; TRC
Quantity Value Units Method Reference Comment
ρc7.1895mol/lN/AHsu and McKetta, 1964Uncertainty assigned by TRC = 0.006 mol/l; TRC
ρc7.33mol/lN/ACentnerszwer, 1904Uncertainty assigned by TRC = 0.1 mol/l; extrapolation of rectilnear diam. to Tc; TRC
Quantity Value Units Method Reference Comment
Δvap20.5 ± 0.3kJ/molReviewManion, 2002weighted average of several measurements plus a correction for non-ideality; DRB

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
21.535248.94N/AMesserly and Aston, 1940P = 101.325 kPA; DH
22.7235.N/ABeersmans and Jungers, 2010Based on data from 183. to 250. K.; AC
22.0263.N/AGaneff and Jungers, 2010Based on data from 198. to 278. K.; AC
22.0262.AStephenson and Malanowski, 1987Based on data from 247. to 310. K.; AC
21.8383.AStephenson and Malanowski, 1987Based on data from 368. to 416. K.; AC
21.0323.AStephenson and Malanowski, 1987Based on data from 308. to 373. K.; AC
23.5206.N/AThomson, 1946Based on data from 191. to 249. K.; AC
22.6234.N/AMesserly and Aston, 1940Based on data from 192. to 249. K.; AC
20.09293.CYates, 1926ALS
20.1293.CYates, 1926AC

Entropy of vaporization

ΔvapS (J/mol*K) Temperature (K) Reference Comment
86.51248.94Messerly and Aston, 1940P; DH

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
303. to 416.34.918581427.52945.137Hsu and McKetta, 1964Coefficents calculated by NIST from author's data.
198. to 278.4.22507951.561-23.468Ganeff and Jungers, 1948Coefficents calculated by NIST from author's data.
183. to 249.44.15454916.223-28.466Beersmans and Jungers, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Reference Comment
31.6 ± 0.1151.Bah and Dupont-Pavlovsky, 1995Based on data from 130. to 172. K.; AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
6.431175.44Messerly and Aston, 1940DH
6.42174.5Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
36.66175.44Messerly and Aston, 1940DH

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, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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

Chlorine anion + Chloromethane = (Chlorine anion • Chloromethane)

By formula: Cl- + CH3Cl = (Cl- • CH3Cl)

Quantity Value Units Method Reference Comment
Δr43.5 ± 4.2kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Δr49.0 ± 8.4kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B
Δr51.0 ± 8.4kJ/molIMRELarson and McMahon, 1984gas phase; B,M
Δr36.0 ± 0.84kJ/molTDAsDougherty, Dalton, et al., 1974gas phase; B,M
Δr63.6 ± 8.4kJ/molTDAsYamdagni and Kebarle, 1971gas phase; B
Quantity Value Units Method Reference Comment
Δr85.8J/mol*KN/ALarson and McMahon, 1984, 2gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Δr64.0J/mol*KHPMSDougherty, Dalton, et al., 1974gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr24.3 ± 0.84kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Δr20.3kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B
Δr26. ± 8.4kJ/molIMRELarson and McMahon, 1984gas phase; B,M
Δr17.2 ± 2.1kJ/molTDAsDougherty, Dalton, et al., 1974gas phase; B
Δr45.2 ± 8.4kJ/molTDAsYamdagni and Kebarle, 1971gas phase; B

CH2Cl- + Hydrogen cation = Chloromethane

By formula: CH2Cl- + H+ = CH3Cl

Quantity Value Units Method Reference Comment
Δr1672. ± 10.kJ/molEndoHierl, Henchman, et al., 1992gas phase; HO- + ClCH3: 8.8±2.3 kcal/mol endo; B
Δr1657. ± 13.kJ/molG+TSIngemann and Nibbering, 1985gas phase; B
Δr1659. ± 19.kJ/molEIAERogers, Simpson, et al., 2010gas phase; B
Δr1674. ± 8.4kJ/molIMRBPoutsma, Nash, et al., 1997gas phase; B
Δr1670. ± 17.kJ/molG+TSHenchman, Hierl, et al., 1985gas phase; HO- + MeCl: 0.38±0.1 eV endo; B
Quantity Value Units Method Reference Comment
Δr1628. ± 13.kJ/molIMREIngemann and Nibbering, 1985gas phase; B
Δr1641. ± 17.kJ/molIMRBHenchman, Hierl, et al., 1985gas phase; HO- + MeCl: 0.38±0.1 eV endo; B

(CH2Cl+ • Chloromethane) + Chloromethane = (CH2Cl+ • 2Chloromethane)

By formula: (CH2Cl+ • CH3Cl) + CH3Cl = (CH2Cl+ • 2CH3Cl)

Quantity Value Units Method Reference Comment
Δr24.kJ/molHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr29.J/mol*KHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
18.182.HPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

(CH4Cl+ • Chloromethane) + Chloromethane = (CH4Cl+ • 2Chloromethane)

By formula: (CH4Cl+ • CH3Cl) + CH3Cl = (CH4Cl+ • 2CH3Cl)

Quantity Value Units Method Reference Comment
Δr18.kJ/molHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr4.6J/mol*KHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
17.182.HPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

CH2Cl+ + Chloromethane = (CH2Cl+ • Chloromethane)

By formula: CH2Cl+ + CH3Cl = (CH2Cl+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr29.kJ/molHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr-15.J/mol*KHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
34.312.HPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

C3H7+ + Chloromethane = (C3H7+ • Chloromethane)

By formula: C3H7+ + CH3Cl = (C3H7+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr95.8kJ/molPHPMSSen Sharma and Kebarle, 1978gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr186.J/mol*KPHPMSSen Sharma and Kebarle, 1978gas phase; Entropy change is questionable; M

Methyl cation + Chloromethane = (Methyl cation • Chloromethane)

By formula: CH3+ + CH3Cl = (CH3+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr259.kJ/molPHPMSMcMahon, Heinis, et al., 1988gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 202. kJ/mol; Foster, Williamson, et al., 1974; M

Bromine anion + Chloromethane = (Bromine anion • Chloromethane)

By formula: Br- + CH3Cl = (Br- • CH3Cl)

Quantity Value Units Method Reference Comment
Δr45.6 ± 4.2kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Quantity Value Units Method Reference Comment
Δr20.3 ± 0.84kJ/molTDAsLi, Ross, et al., 1996gas phase; B

CN- + Chloromethane = (CN- • Chloromethane)

By formula: CN- + CH3Cl = (CN- • CH3Cl)

Quantity Value Units Method Reference Comment
Δr42.7 ± 4.2kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Quantity Value Units Method Reference Comment
Δr20.5 ± 0.84kJ/molTDAsLi, Ross, et al., 1996gas phase; B

CH3Cl2- + 2Chloromethane = C2H6Cl3-

By formula: CH3Cl2- + 2CH3Cl = C2H6Cl3-

Quantity Value Units Method Reference Comment
Δr46.44kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr16.5kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C2H6Cl3- + 3Chloromethane = C3H9Cl4-

By formula: C2H6Cl3- + 3CH3Cl = C3H9Cl4-

Quantity Value Units Method Reference Comment
Δr35.1kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr8.95kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C3H9Cl4- + 4Chloromethane = C4H12Cl5-

By formula: C3H9Cl4- + 4CH3Cl = C4H12Cl5-

Quantity Value Units Method Reference Comment
Δr31.8kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr5.61kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C4H12Cl5- + 5Chloromethane = C5H15Cl6-

By formula: C4H12Cl5- + 5CH3Cl = C5H15Cl6-

Quantity Value Units Method Reference Comment
Δr25.9kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr3.5kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C5H15Cl6- + 6Chloromethane = C6H18Cl7-

By formula: C5H15Cl6- + 6CH3Cl = C6H18Cl7-

Quantity Value Units Method Reference Comment
Δr24.3kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr1.8kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C6H18Cl7- + 7Chloromethane = C7H21Cl8-

By formula: C6H18Cl7- + 7CH3Cl = C7H21Cl8-

Quantity Value Units Method Reference Comment
Δr20.1kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr2.6kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C7H21Cl8- + 8Chloromethane = C8H24Cl9-

By formula: C7H21Cl8- + 8CH3Cl = C8H24Cl9-

Quantity Value Units Method Reference Comment
Δr19.7kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr2.2kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C2H5+ + Chloromethane = (C2H5+ • Chloromethane)

By formula: C2H5+ + CH3Cl = (C2H5+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr128.kJ/molPHPMSSen Sharma and Kebarle, 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr128.J/mol*KPHPMSSen Sharma and Kebarle, 1978gas phase; M

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

By formula: Li+ + CH3Cl = (Li+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr100.kJ/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 interpolated; M

C4H9+ + Chloromethane = (C4H9+ • Chloromethane)

By formula: C4H9+ + CH3Cl = (C4H9+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr35.kJ/molPHPMSSharma, Meza de Hojer, et al., 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr80.8J/mol*KPHPMSSharma, Meza de Hojer, et al., 1985gas phase; M

CH6N+ + Chloromethane = (CH6N+ • Chloromethane)

By formula: CH6N+ + CH3Cl = (CH6N+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr44.8kJ/molPHPMSMeot-Ner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Δr86.2J/mol*KPHPMSMeot-Ner, 1984gas phase; M

Hydrogen + Chloromethane = Methane + Hydrogen chloride

By formula: H2 + CH3Cl = CH4 + HCl

Quantity Value Units Method Reference Comment
Δr-80.8 ± 0.4kJ/molChydLacher, Emery, et al., 1956gas phase; ALS

Henry's Law data

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, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/(kg*bar)) d(ln(kH))/d(1/T) (K) Method Reference Comment
0.0943000.MN/A 
0.12 QN/A missing citation give several references for the Henry's law constants but don't assign them to specific species.
0.124200.MGossett, 1987 
0.029-630.XN/A 
0.11 LN/A 
0.0992900.XN/A 
0.11 VN/A 
0.12 VN/AValue at T = 293. K.
0.102800.LN/A 
0.10 VN/A 
0.13 MPearson and McConnell, 1975The same data was also published in missing citation. Value at T = 293. K.

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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
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 CH3Cl+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)11.26 ± 0.03eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)647.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity621.1kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
11.221SHochmann, Templet, et al., 1975LLK
11.28 ± 0.01PIWerner, Tsai, et al., 1974LLK
11.27EILossing, 1972LLK
11.29PERagle, Stenhouse, et al., 1970RDSH
11.26PEDewar and Worley, 1969RDSH
11.265 ± 0.003PINicholson, 1965RDSH
11.28PIDibeler and Walker, 1965RDSH
11.28 ± 0.01PIWatanabe, 1957RDSH
11.22 ± 0.01SPrice, 1936RDSH
11.29PEKimura, Katsumata, et al., 1981Vertical value; LLK
11.29PEUtsunomiya, Kobayashi, et al., 1980Vertical value; LLK
11.33PEUehara, Saito, et al., 1973Vertical value; LLK
11.30PEDixon, Murrell, et al., 1971Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C+26.3 ± 0.1?EIReed and Snedden, 1956RDSH
CH+22.5 ± 0.06?EIReed and Snedden, 1956RDSH
CH2+14.6 ± 0.2HClEITsuda and Hamill, 1964RDSH
CH2Cl+12.96HEILossing, 1972LLK
CH2Cl+12.98 ± 0.07HEIMartin, Lampe, et al., 1966RDSH
CH3+13.87ClPIKrauss, Walker, et al., 1968RDSH
CH3+10.07Cl-PIDibeler and Walker, 1965RDSH
Cl+16.6 ± 0.05CH3EITsuda, Melton, et al., 1964RDSH

De-protonation reactions

CH2Cl- + Hydrogen cation = Chloromethane

By formula: CH2Cl- + H+ = CH3Cl

Quantity Value Units Method Reference Comment
Δr1672. ± 10.kJ/molEndoHierl, Henchman, et al., 1992gas phase; HO- + ClCH3: 8.8±2.3 kcal/mol endo; B
Δr1657. ± 13.kJ/molG+TSIngemann and Nibbering, 1985gas phase; B
Δr1659. ± 19.kJ/molEIAERogers, Simpson, et al., 2010gas phase; B
Δr1674. ± 8.4kJ/molIMRBPoutsma, Nash, et al., 1997gas phase; B
Δr1670. ± 17.kJ/molG+TSHenchman, Hierl, et al., 1985gas phase; HO- + MeCl: 0.38±0.1 eV endo; B
Quantity Value Units Method Reference Comment
Δr1628. ± 13.kJ/molIMREIngemann and Nibbering, 1985gas phase; B
Δr1641. ± 17.kJ/molIMRBHenchman, Hierl, et al., 1985gas phase; HO- + MeCl: 0.38±0.1 eV endo; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

Bromine anion + Chloromethane = (Bromine anion • Chloromethane)

By formula: Br- + CH3Cl = (Br- • CH3Cl)

Quantity Value Units Method Reference Comment
Δr45.6 ± 4.2kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Quantity Value Units Method Reference Comment
Δr20.3 ± 0.84kJ/molTDAsLi, Ross, et al., 1996gas phase; B

CH2Cl+ + Chloromethane = (CH2Cl+ • Chloromethane)

By formula: CH2Cl+ + CH3Cl = (CH2Cl+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr29.kJ/molHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr-15.J/mol*KHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
34.312.HPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

(CH2Cl+ • Chloromethane) + Chloromethane = (CH2Cl+ • 2Chloromethane)

By formula: (CH2Cl+ • CH3Cl) + CH3Cl = (CH2Cl+ • 2CH3Cl)

Quantity Value Units Method Reference Comment
Δr24.kJ/molHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr29.J/mol*KHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
18.182.HPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

Methyl cation + Chloromethane = (Methyl cation • Chloromethane)

By formula: CH3+ + CH3Cl = (CH3+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr259.kJ/molPHPMSMcMahon, Heinis, et al., 1988gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 202. kJ/mol; Foster, Williamson, et al., 1974; M

CH3Cl2- + 2Chloromethane = C2H6Cl3-

By formula: CH3Cl2- + 2CH3Cl = C2H6Cl3-

Quantity Value Units Method Reference Comment
Δr46.44kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr16.5kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

(CH4Cl+ • Chloromethane) + Chloromethane = (CH4Cl+ • 2Chloromethane)

By formula: (CH4Cl+ • CH3Cl) + CH3Cl = (CH4Cl+ • 2CH3Cl)

Quantity Value Units Method Reference Comment
Δr18.kJ/molHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr4.6J/mol*KHPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
17.182.HPMSLuczynski, Malicki, et al., 1974gas phase; DG from graph, Entropy change is questionable; M

CH6N+ + Chloromethane = (CH6N+ • Chloromethane)

By formula: CH6N+ + CH3Cl = (CH6N+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr44.8kJ/molPHPMSMeot-Ner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Δr86.2J/mol*KPHPMSMeot-Ner, 1984gas phase; M

CN- + Chloromethane = (CN- • Chloromethane)

By formula: CN- + CH3Cl = (CN- • CH3Cl)

Quantity Value Units Method Reference Comment
Δr42.7 ± 4.2kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Quantity Value Units Method Reference Comment
Δr20.5 ± 0.84kJ/molTDAsLi, Ross, et al., 1996gas phase; B

C2H5+ + Chloromethane = (C2H5+ • Chloromethane)

By formula: C2H5+ + CH3Cl = (C2H5+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr128.kJ/molPHPMSSen Sharma and Kebarle, 1978gas phase; M
Quantity Value Units Method Reference Comment
Δr128.J/mol*KPHPMSSen Sharma and Kebarle, 1978gas phase; M

C2H6Cl3- + 3Chloromethane = C3H9Cl4-

By formula: C2H6Cl3- + 3CH3Cl = C3H9Cl4-

Quantity Value Units Method Reference Comment
Δr35.1kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr8.95kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C3H7+ + Chloromethane = (C3H7+ • Chloromethane)

By formula: C3H7+ + CH3Cl = (C3H7+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr95.8kJ/molPHPMSSen Sharma and Kebarle, 1978gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr186.J/mol*KPHPMSSen Sharma and Kebarle, 1978gas phase; Entropy change is questionable; M

C3H9Cl4- + 4Chloromethane = C4H12Cl5-

By formula: C3H9Cl4- + 4CH3Cl = C4H12Cl5-

Quantity Value Units Method Reference Comment
Δr31.8kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr5.61kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C4H9+ + Chloromethane = (C4H9+ • Chloromethane)

By formula: C4H9+ + CH3Cl = (C4H9+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr35.kJ/molPHPMSSharma, Meza de Hojer, et al., 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr80.8J/mol*KPHPMSSharma, Meza de Hojer, et al., 1985gas phase; M

C4H12Cl5- + 5Chloromethane = C5H15Cl6-

By formula: C4H12Cl5- + 5CH3Cl = C5H15Cl6-

Quantity Value Units Method Reference Comment
Δr25.9kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr3.5kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C5H15Cl6- + 6Chloromethane = C6H18Cl7-

By formula: C5H15Cl6- + 6CH3Cl = C6H18Cl7-

Quantity Value Units Method Reference Comment
Δr24.3kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr1.8kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C6H18Cl7- + 7Chloromethane = C7H21Cl8-

By formula: C6H18Cl7- + 7CH3Cl = C7H21Cl8-

Quantity Value Units Method Reference Comment
Δr20.1kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr2.6kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

C7H21Cl8- + 8Chloromethane = C8H24Cl9-

By formula: C7H21Cl8- + 8CH3Cl = C8H24Cl9-

Quantity Value Units Method Reference Comment
Δr19.7kJ/molN/AHiraoka, Mizuno, et al., 2001gas phase; B
Quantity Value Units Method Reference Comment
Δr2.2kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B

Chlorine anion + Chloromethane = (Chlorine anion • Chloromethane)

By formula: Cl- + CH3Cl = (Cl- • CH3Cl)

Quantity Value Units Method Reference Comment
Δr43.5 ± 4.2kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Δr49.0 ± 8.4kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B
Δr51.0 ± 8.4kJ/molIMRELarson and McMahon, 1984gas phase; B,M
Δr36.0 ± 0.84kJ/molTDAsDougherty, Dalton, et al., 1974gas phase; B,M
Δr63.6 ± 8.4kJ/molTDAsYamdagni and Kebarle, 1971gas phase; B
Quantity Value Units Method Reference Comment
Δr85.8J/mol*KN/ALarson and McMahon, 1984, 2gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Δr64.0J/mol*KHPMSDougherty, Dalton, et al., 1974gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr24.3 ± 0.84kJ/molTDAsLi, Ross, et al., 1996gas phase; B
Δr20.3kJ/molTDAsHiraoka, Mizuno, et al., 2001gas phase; B
Δr26. ± 8.4kJ/molIMRELarson and McMahon, 1984gas phase; B,M
Δr17.2 ± 2.1kJ/molTDAsDougherty, Dalton, et al., 1974gas phase; B
Δr45.2 ± 8.4kJ/molTDAsYamdagni and Kebarle, 1971gas phase; B

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

By formula: Li+ + CH3Cl = (Li+ • CH3Cl)

Quantity Value Units Method Reference Comment
Δr100.kJ/molICRStaley and Beauchamp, 1975gas phase; switching reaction(Li+)H2O, from graph; Dzidic and Kebarle, 1970 interpolated; M

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, 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: Coblentz Society, Inc.

Gas Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CHEMICAL COMPANY
Source reference COBLENTZ NO. 8844
Date 1964
Name(s) chloromethane
State GAS (200 mmHg DILUTED TO A TOTAL PRESSURE OF 600 mmHg WITH NITROGEN)
Instrument DOW KBr FOREPRISM
Instrument parameters GRATING CHANGED AT 5.0, 7.5, 15.0 MICRON
Path length 5 CM
SPECTRAL CONTAMINATION DUE TO METHANE AROUND 1310 CM-1
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Vibrational and/or electronic energy levels, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

Due to licensing restrictions, this spectrum cannot be downloaded.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
NIST MS number 18894

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


Vibrational and/or electronic energy levels

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), 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: Takehiko Shimanouchi

Symmetry:   C     Symmetry Number σ = 3


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 CH3 s-str 2937  E 2967.78 M gas 2955 VS p liq. FR(2ν5)
a1 1 CH3 s-str 2937  E 2879.28 M gas 2861 M liq. FR(2ν5)
a1 2 CH3 s-deform 1355  A 1354.9 S gas 1370 VW p liq.
a1 3 CCl str 732  A 732.1 S gas 709 VS p liq.
e 4 CH3 d-str 3039  B 3039.31 S gas 3036 M dp liq. FR(3ν6)
e 4 CH3 d-str 3039  B 3042.75 S gas 3036 M dp liq. FR(3ν6)
e 5 CH3 d-deform 1452  A 1452.1 M gas 1446 W dp liq.
e 6 CH3 rock 1017  A 1017.3 M gas 1016 W dp liq.

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
pPolarized
dpDepolarized
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
A0~1 cm-1 uncertainty
B1~3 cm-1 uncertainty
E15~30 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Manion, 2002
Manion, J.A., Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons, J. Phys. Chem. Ref. Data, 2002, 31, 1, 123-172, https://doi.org/10.1063/1.1420703 . [all data]

Fletcher and Pilcher, 1971
Fletcher, R.A.; Pilcher, G., Measurements of heats of combustion by flame calorimetry. Part 7.?Chloromethane, chloroethane, 1-chloropropane, 2-chloropropane, Trans. Faraday Soc., 1971, 67, 3191, https://doi.org/10.1039/tf9716703191 . [all data]

Fletcher and Pilcher, 1971, 2
Fletcher, R.A.; Pilcher, G., Measurements of heats of combustion by flame calorimetry. Part 7.-Chloromethane, chloroethane, 1-chloropropane, 2-chloropropane, Trans. Faraday Soc., 1971, 67, 3191-3201. [all data]

Lacher, Emery, et al., 1956
Lacher, J.R.; Emery, E.; Bohmfalk, E.; Park, J.D., Reaction heats of organic compounds. IV. A high temperature calorimeter and the hydrogenation of methyl ethyl and vinyl chlorides, J. Phys. Chem., 1956, 60, 492-495. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Messerly and Aston, 1940
Messerly, G.H.; Aston, J.G., The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of methyl chloride, J. Am. Chem. Soc., 1940, 62, 886-890. [all data]

Awberg and Griffiths, 1940
Awberg, J.H.; Griffiths, E., The specific heat of liquid methyl chloride, Proc. Phys. Soc. (London), 1940, 52, 770-776. [all data]

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Shorthose, D.N., G. B. DSIR, Food Invest. Board, Spec. Rept., 1924, No. 19, 16pp. [all data]

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Awbery, J.H., Philos. Mag., 1941, 31, 247. [all data]

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Timmermans, J., The Freezing Points of Organic Substances IV. New Exp. Determinations, Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]

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Timmermans, J., Researches on the freezing point of organic liquid compounds, Bull. Soc. Chim. Belg., 1911, 25, 300. [all data]

Messerly and Aston, 1940, 2
Messerly, G.H.; Aston, J.G., The Heat Capacity and Entropy, Heats of Fusion and Vaporization and the Vapor Pressure of Methyl Chloride, J. Am. Chem. Soc., 1940, 62, 886-90. [all data]

Mansoorian, Hall, et al., 1981
Mansoorian, H.; Hall, K.R.; Holste, J.C.; Eubank, P.T., The density of gaseous ethane and of fluid methyl chloride and the vapor pressure of methyl chloride, J. Chem. Thermodyn., 1981, 13, 1001-24. [all data]

Hsu and McKetta, 1964
Hsu, C.C.; McKetta, J.J., Pressure-Volume-Temperature Properties of Methyl Chloride, J. Chem. Eng. Data, 1964, 9, 1, 45-51, https://doi.org/10.1021/je60020a014 . [all data]

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Leduc, A., Compressibility of gases between 0 atm and 3 atm and at all temperatures, C. R. Hebd. Seances Acad. Sci., 1909, 148, 407. [all data]

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Vincent, C.; Chappuis, J., J. Phys. Theor. Appl., 1886, 5, 58. [all data]

Centnerszwer, 1904
Centnerszwer, M., An Application of the Method of Cailletet and Mathias to Determine Critical Volume., Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1904, 49, 199. [all data]

Beersmans and Jungers, 2010
Beersmans, J.; Jungers, J.C., Synthèse et Étude des Chlorure, Bromure et Iodure de Deutérométhyle, Bull. Soc. Chim. Belges, 2010, 56, 5-8, 238-250, https://doi.org/10.1002/bscb.19470560506 . [all data]

Ganeff and Jungers, 2010
Ganeff, Jean M.; Jungers, Joseph C., Tensions de vapeur du système CH3Cl «63743» CH2Cl2, Bull. Soc. Chim. Belges, 2010, 57, 1-3, 82-87, https://doi.org/10.1002/bscb.19480570109 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Thomson, 1946
Thomson, George Wm., The Antoine Equation for Vapor-pressure Data., Chem. Rev., 1946, 38, 1, 1-39, https://doi.org/10.1021/cr60119a001 . [all data]

Yates, 1926
Yates, G.W.C., LXXIV. Latent heats of vaporization of ethyl and methyl chlorides, Philos. Mag., 1926, 2, 817-826. [all data]

Ganeff and Jungers, 1948
Ganeff, J.M.; Jungers, J.C., Tensions de Vapeur du Systeme CH3Cl - CH2Cl2, Bull. Soc. Chim. Belg., 1948, 57, 1-3, 82-87, https://doi.org/10.1002/bscb.19480570109 . [all data]

Beersmans and Jungers, 1947
Beersmans, J.; Jungers, J.C., Synthese et Etude des Chlorure, Bromure et Iodure de Deuteromethyle, Bull. Soc. Chim. Belg., 1947, 56, 5-8, 238-250, https://doi.org/10.1002/bscb.19470560506 . [all data]

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Bah, A.; Dupont-Pavlovsky, N., Vapor Pressure of Solid Chloromethane, J. Chem. Eng. Data, 1995, 40, 4, 869-870, https://doi.org/10.1021/je00020a028 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [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]

Hiraoka, Mizuno, et al., 2001
Hiraoka, K.; Mizuno, T.; Iino, T.; Eguchi, D.; Yamabe, S., Characteristic changes of bond energies for gas-phase cluster ions of halide ions with methane and chloromethanes, J. Phys. Chem. A, 2001, 105, 20, 4887-4893, https://doi.org/10.1021/jp010143n . [all data]

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Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria, J. Am. Chem. Soc., 1984, 106, 517. [all data]

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Dougherty, R.C.; Dalton, J.; Roberts, J.D., SN2 reactions in the gas phase: Structure of the transition state, Org. Mass Spectrom., 1974, 8, 77. [all data]

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Yamdagni, R.; Kebarle, P., Hydrogen bonding energies to negative ions from gas phase measurements of ionic equilibria, J. Am. Chem. Soc., 1971, 93, 7139. [all data]

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Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

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French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl- = RHCl-, Can. J. Chem., 1982, 60, 1907. [all data]

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Hierl, P.M.; Henchman, M.J.; Paulson, J.F., Threshold Energies for the Reactions HO- + MeX - MeOH + X- measured by Tandem Mass Spectrometry: Acidities of MeCl and MeBr, Int. J. Mass Spectrom. Ion Proc., 1992, 117, 475, https://doi.org/10.1016/0168-1176(92)80109-E . [all data]

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Ingemann, S.; Nibbering, N.M.M., Gas-phase acidity of CH3X [X = P(CH3)2, SCH3, F, Cl, Br, I] compounds, J. Chem. Soc. Perkin Trans. 2, 1985, 837. [all data]

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Rogers, N.J.; Simpson, M.J.; Tuckett, R.P.; Dunn, K.F.; Latimer, C.J., Vacuum-UV negative photoion spectroscopy of CH3F, CH3Cl and CH3Br, Phys. Chem. Chem. Phys., 2010, 12, 36, 10971-10980, https://doi.org/10.1039/c0cp00234h . [all data]

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Poutsma, J.C.; Nash, J.J.; Paulino, J.A.; Squires, R.R., Absolute Heats of Formation of Phenylcarbene and Vinylcarbene, J. Am. Chem. Soc., 1997, 119, 20, 4686, https://doi.org/10.1021/ja963918s . [all data]

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Henchman, M.; Hierl, P.M.; Paulson, J.F., Nucleophilic displacement vs. proton tranfer: The system OH-.(H2O)0,1,2 + CH3Cl in the relative energy range 0.03-5 eV, J. Am. Chem. Soc., 1985, 107, 2812. [all data]

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Luczynski, Z.; Malicki, W.; Wincel, H., Positive Ion Reactions of Methyl Cloride in the Gas Phase, Int. J. Mass Spectrom. Ion Phys., 1974, 15, 3, 321, https://doi.org/10.1016/0020-7381(74)85009-6 . [all data]

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Sen Sharma, D.K.; Kebarle, P., Binding Energies and Stabilities of Chloronium Ions from Study of the Gas - Phase Equilibria: R1+ + ClR2 = R1ClR2+, J. Am. Chem. Soc., 1978, 100, 18, 5826, https://doi.org/10.1021/ja00486a039 . [all data]

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McMahon, T.; Heinis, T.; Nicol, G.; Hovey, J.K.; Kebarle, P., Methyl Cation Affinities, J. Am. Chem. Soc., 1988, 110, 23, 7591, https://doi.org/10.1021/ja00231a002 . [all data]

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Foster, M.S.; Williamson, A.D.; Beauchamp, J.L., Photoionization mass spectrometry of trans-azomethane, Int. J. Mass Spectrom. Ion Phys., 1974, 15, 429. [all data]

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Dzidic, I.; Kebarle, P., Hydration of the Alkali Ions in the Gas Phase. Enthalpies and Entropies of Reactions M+(H2O)n-1 + H2O = M+(H2O)n, J. Phys. Chem., 1970, 74, 7, 1466, https://doi.org/10.1021/j100702a013 . [all data]

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Sharma, D.M.S.; Meza de Hojer, S.; Kebarle, P., Stabilities of halonium ions from a study of gas-phase equilibria R+ + XR' = (RXR')+, J. Am. Chem. Soc., 1985, 107, 13, 3757, https://doi.org/10.1021/ja00299a002 . [all data]

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Meot-Ner, (Mautner)M., The Ionic Hydrogen Bond and Ion Solvation. 1. -NH+ O-, -NH+ N- and -OH+ O- Bonds. Correlations with Proton Affinity. Deviations Due to Structural Effects, J. Am. Chem. Soc., 1984, 106, 5, 1257, https://doi.org/10.1021/ja00317a015 . [all data]

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Notes

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