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MeO anion


Reaction thermochemistry data

Go To: Top, Gas phase ion energetics data, Ion clustering data, 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. 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

CH3O- + Hydrogen cation = Methyl Alcohol

By formula: CH3O- + H+ = CH4O

Quantity Value Units Method Reference Comment
Deltar1597. ± 8.kJ/molAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Deltar1573.3 ± 2.6kJ/molH-TSNee, Osterwalder, et al., 2006gas phase; B
Deltar1573.4 ± 2.3kJ/molH-TSOsborn, Leahy, et al., 1998gas phase; B
Deltar1565. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; The acidity is 1.2 kcal/mol stronger than that from the D-EA cycle, due to the multi-compound fit for the acidity scale.; value altered from reference due to change in acidity scale; B
Deltar1567. ± 8.8kJ/molH-TSHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.; B
Deltar1569.4 ± 2.5kJ/molTDEqMeot-ner and Sieck, 1986gas phase; Experimental entropy: 21.5 eu, 0.6 less than H2O; B

CH3O- + Methyl Alcohol = (CH3O- bullet Methyl Alcohol)

By formula: CH3O- + CH4O = (CH3O- bullet CH4O)

Quantity Value Units Method Reference Comment
Deltar123. ± 4.2kJ/molTDAsPaul and Kebarle, 1990gas phase; B,M
Deltar120.5 ± 1.3kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B,M
Deltar123. ± 10.kJ/molTDAsCaldwell, Rozeboom, et al., 1984gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Deltar79.5 ± 8.4kJ/molN/AMoylan, Dodd, et al., 1985gas phase; B
Quantity Value Units Method Reference Comment
Deltar133.J/mol*KPHPMSPaul and Kebarle, 1990gas phase; M
Deltar112.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar84.94kJ/molIMREMustanir, Matsuoka, et al., 2006gas phase; B
Deltar82.8 ± 4.2kJ/molTDAsPaul and Kebarle, 1990gas phase; B
Deltar87.0 ± 2.1kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B
Deltar84.9 ± 6.7kJ/molTDAsCaldwell, Rozeboom, et al., 1984gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
79.9296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(CH3O-)H2O; Meot-Ner(Mautner), 1986; M

CH3O- + Water = (CH3O- bullet Water)

By formula: CH3O- + H2O = (CH3O- bullet H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar106. ± 9.2kJ/molCIDTDeTuri and Ervin, 1999gas phase; B
Deltar100.kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M,B,M
Quantity Value Units Method Reference Comment
Deltar95.8J/mol*KPHPMSMeot-ner and Sieck, 1986gas phase; M
Deltar95.8J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar71.1 ± 1.3kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
64.4296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(OH-)H2O, DG>; Meot-Ner(Mautner), 1986; M

(CH3O- bullet 4294967295Formaldehyde) + Formaldehyde = CH3O-

By formula: (CH3O- bullet 4294967295CH2O) + CH2O = CH3O-

Quantity Value Units Method Reference Comment
Deltar166.9 ± 2.1kJ/molN/ANee, Osterwalder, et al., 2006gas phase; B
Deltar171. ± 4.6kJ/molTherOsborn, Leahy, et al., 1998gas phase; B
Deltar175. ± 9.2kJ/molTherBartmess, Scott, et al., 1979gas phase; The acidity is 1.2 kcal/mol stronger than that from the D-EA cycle, due to the multi-compound fit for the acidity scale.; value altered from reference due to change in acidity scale; B

(CH3O- bullet 2Water) + Water = (CH3O- bullet 3Water)

By formula: (CH3O- bullet 2H2O) + H2O = (CH3O- bullet 3H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar61.9kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar102.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
33.296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(OH-)3H2O; Meot-Ner(Mautner), 1986; M

(CH3O- bullet Water) + Water = (CH3O- bullet 2Water)

By formula: (CH3O- bullet H2O) + H2O = (CH3O- bullet 2H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar80.3kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar106.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
34.296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(OH-)2H2O; Meot-Ner(Mautner), 1986; M

CH3O- + Methanol-D4 = C2H4D7O2-

By formula: CH3O- + CD4O = C2H4D7O2-

Quantity Value Units Method Reference Comment
Deltar118. ± 4.2kJ/molIMREChabinyc and Brauman, 2000gas phase; Original dG=19.4 at 350K; dS based on symmetry alone.; B
Quantity Value Units Method Reference Comment
Deltar86.6 ± 4.2kJ/molIMREChabinyc and Brauman, 2000gas phase; Original dG=19.4 at 350K; dS based on symmetry alone.; B

(CH3O- bullet Water bullet Methyl Alcohol) + Water = (CH3O- bullet 2Water bullet Methyl Alcohol)

By formula: (CH3O- bullet H2O bullet CH4O) + H2O = (CH3O- bullet 2H2O bullet CH4O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar63.6kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar116.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet 2Methyl Alcohol) + Water = (CH3O- bullet Water bullet 2Methyl Alcohol)

By formula: (CH3O- bullet 2CH4O) + H2O = (CH3O- bullet H2O bullet 2CH4O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar57.7kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar105.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet Methyl Alcohol) + Water = (CH3O- bullet Water bullet Methyl Alcohol)

By formula: (CH3O- bullet CH4O) + H2O = (CH3O- bullet H2O bullet CH4O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar74.5kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar108.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet 3Water) + Water = (CH3O- bullet 4Water)

By formula: (CH3O- bullet 3H2O) + H2O = (CH3O- bullet 4H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar46.0kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar83.7J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

CH3O- + Fluoroform = C2H4F3O-

By formula: CH3O- + CHF3 = C2H4F3O-

Quantity Value Units Method Reference Comment
Deltar98.3 ± 4.2kJ/molIMREChabinyc and Brauman, 1998gas phase; B
Quantity Value Units Method Reference Comment
Deltar69.5 ± 4.2kJ/molIMREChabinyc and Brauman, 1998gas phase; B

(CH3O- bullet Water) + Methyl Alcohol = (CH3O- bullet Methyl Alcohol bullet Water)

By formula: (CH3O- bullet H2O) + CH4O = (CH3O- bullet CH4O bullet H2O)

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
57.3296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(CH3O-)2H2O; Meot-Ner(Mautner), 1986; M

CH3O- + Boron trifluoride = (CH3O- bullet Boron trifluoride)

By formula: CH3O- + BF3 = (CH3O- bullet BF3)

Quantity Value Units Method Reference Comment
Deltar>92.0 ± 8.4kJ/molIMRBBlair, Isolani, et al., 1973gas phase; MeOH..MeO- + BF3 ->. Computations indicate dHaff ca. 80 kcal/mol; B

(CH3O- bullet 2Methyl Alcohol) + Methyl Alcohol = (CH3O- bullet 3Methyl Alcohol)

By formula: (CH3O- bullet 2CH4O) + CH4O = (CH3O- bullet 3CH4O)

Quantity Value Units Method Reference Comment
Deltar62.8kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar110.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet 3Methyl Alcohol) + Methyl Alcohol = (CH3O- bullet 4Methyl Alcohol)

By formula: (CH3O- bullet 3CH4O) + CH4O = (CH3O- bullet 4CH4O)

Quantity Value Units Method Reference Comment
Deltar47.7kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar93.7J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet Methyl Alcohol) + Methyl Alcohol = (CH3O- bullet 2Methyl Alcohol)

By formula: (CH3O- bullet CH4O) + CH4O = (CH3O- bullet 2CH4O)

Quantity Value Units Method Reference Comment
Deltar89.5kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar116.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

CH3O- + Trifluorophenylsilane = C7H8F3OSi-

By formula: CH3O- + C6H5F3Si = C7H8F3OSi-

Quantity Value Units Method Reference Comment
Deltar320. ± 25.kJ/molCIDTKrouse, Lardin, et al., 2003gas phase; B

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, Ion clustering data, 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: John E. Bartmess

Electron affinity of neutral species

EAneutral (eV) Method Reference Comment
1.5690 ± 0.0019LPESNee, Osterwalder, et al., 2006 
1.5720 ± 0.0040LPESRamond, Davico, et al., 2000 
1.5680 ± 0.0050LPESOsborn, Leahy, et al., 1998 
1.685 ± 0.094D-EABartmess, Scott, et al., 1979The acidity is 1.2 kcal/mol stronger than that from the D-EA cycle, due to the multi-compound fit for the acidity scale.; value altered from reference due to change in acidity scale
1.570 ± 0.022LPESEngleking, Ellison, et al., 1978Confirmed by high level calculations: Hiraoka, Shimizu, et al., 1995
1.591 ± 0.040PDJanousek, Zimmerman, et al., 1978 
<1.591 ± 0.039PDReed and Brauman, 1975 
2.59998EIAETsuda and Hamill, 1964From MeOMe
0.3816SIPage and Goode, 1969The Magnetron method, lacking mass analysis, is not considered reliable.

Protonation reactions

CH3O- + Hydrogen cation = Methyl Alcohol

By formula: CH3O- + H+ = CH4O

Quantity Value Units Method Reference Comment
Deltar1597. ± 8.kJ/molAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Deltar1573.3 ± 2.6kJ/molH-TSNee, Osterwalder, et al., 2006gas phase
Deltar1573.4 ± 2.3kJ/molH-TSOsborn, Leahy, et al., 1998gas phase
Deltar1565. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; The acidity is 1.2 kcal/mol stronger than that from the D-EA cycle, due to the multi-compound fit for the acidity scale.; value altered from reference due to change in acidity scale
Deltar1567. ± 8.8kJ/molH-TSHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.
Deltar1569.4 ± 2.5kJ/molTDEqMeot-ner and Sieck, 1986gas phase; Experimental entropy: 21.5 eu, 0.6 less than H2O

Ion clustering data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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

CH3O- + Boron trifluoride = (CH3O- bullet Boron trifluoride)

By formula: CH3O- + BF3 = (CH3O- bullet BF3)

Quantity Value Units Method Reference Comment
Deltar>92.0 ± 8.4kJ/molIMRBBlair, Isolani, et al., 1973gas phase; MeOH..MeO- + BF3 ->. Computations indicate dHaff ca. 80 kcal/mol; B

CH3O- + Methanol-D4 = C2H4D7O2-

By formula: CH3O- + CD4O = C2H4D7O2-

Quantity Value Units Method Reference Comment
Deltar118. ± 4.2kJ/molIMREChabinyc and Brauman, 2000gas phase; Original dG=19.4 at 350K; dS based on symmetry alone.; B
Quantity Value Units Method Reference Comment
Deltar86.6 ± 4.2kJ/molIMREChabinyc and Brauman, 2000gas phase; Original dG=19.4 at 350K; dS based on symmetry alone.; B

CH3O- + Fluoroform = C2H4F3O-

By formula: CH3O- + CHF3 = C2H4F3O-

Quantity Value Units Method Reference Comment
Deltar98.3 ± 4.2kJ/molIMREChabinyc and Brauman, 1998gas phase; B
Quantity Value Units Method Reference Comment
Deltar69.5 ± 4.2kJ/molIMREChabinyc and Brauman, 1998gas phase; B

(CH3O- bullet 4294967295Formaldehyde) + Formaldehyde = CH3O-

By formula: (CH3O- bullet 4294967295CH2O) + CH2O = CH3O-

Quantity Value Units Method Reference Comment
Deltar166.9 ± 2.1kJ/molN/ANee, Osterwalder, et al., 2006gas phase; B
Deltar171. ± 4.6kJ/molTherOsborn, Leahy, et al., 1998gas phase; B
Deltar175. ± 9.2kJ/molTherBartmess, Scott, et al., 1979gas phase; The acidity is 1.2 kcal/mol stronger than that from the D-EA cycle, due to the multi-compound fit for the acidity scale.; value altered from reference due to change in acidity scale; B

CH3O- + Methyl Alcohol = (CH3O- bullet Methyl Alcohol)

By formula: CH3O- + CH4O = (CH3O- bullet CH4O)

Quantity Value Units Method Reference Comment
Deltar123. ± 4.2kJ/molTDAsPaul and Kebarle, 1990gas phase; B,M
Deltar120.5 ± 1.3kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B,M
Deltar123. ± 10.kJ/molTDAsCaldwell, Rozeboom, et al., 1984gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B
Deltar79.5 ± 8.4kJ/molN/AMoylan, Dodd, et al., 1985gas phase; B
Quantity Value Units Method Reference Comment
Deltar133.J/mol*KPHPMSPaul and Kebarle, 1990gas phase; M
Deltar112.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar84.94kJ/molIMREMustanir, Matsuoka, et al., 2006gas phase; B
Deltar82.8 ± 4.2kJ/molTDAsPaul and Kebarle, 1990gas phase; B
Deltar87.0 ± 2.1kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B
Deltar84.9 ± 6.7kJ/molTDAsCaldwell, Rozeboom, et al., 1984gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
79.9296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(CH3O-)H2O; Meot-Ner(Mautner), 1986; M

(CH3O- bullet Methyl Alcohol) + Methyl Alcohol = (CH3O- bullet 2Methyl Alcohol)

By formula: (CH3O- bullet CH4O) + CH4O = (CH3O- bullet 2CH4O)

Quantity Value Units Method Reference Comment
Deltar89.5kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar116.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet 2Methyl Alcohol) + Methyl Alcohol = (CH3O- bullet 3Methyl Alcohol)

By formula: (CH3O- bullet 2CH4O) + CH4O = (CH3O- bullet 3CH4O)

Quantity Value Units Method Reference Comment
Deltar62.8kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar110.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet 3Methyl Alcohol) + Methyl Alcohol = (CH3O- bullet 4Methyl Alcohol)

By formula: (CH3O- bullet 3CH4O) + CH4O = (CH3O- bullet 4CH4O)

Quantity Value Units Method Reference Comment
Deltar47.7kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar93.7J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet Methyl Alcohol) + Water = (CH3O- bullet Water bullet Methyl Alcohol)

By formula: (CH3O- bullet CH4O) + H2O = (CH3O- bullet H2O bullet CH4O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar74.5kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar108.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet 2Methyl Alcohol) + Water = (CH3O- bullet Water bullet 2Methyl Alcohol)

By formula: (CH3O- bullet 2CH4O) + H2O = (CH3O- bullet H2O bullet 2CH4O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar57.7kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar105.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

CH3O- + Trifluorophenylsilane = C7H8F3OSi-

By formula: CH3O- + C6H5F3Si = C7H8F3OSi-

Quantity Value Units Method Reference Comment
Deltar320. ± 25.kJ/molCIDTKrouse, Lardin, et al., 2003gas phase; B

CH3O- + Water = (CH3O- bullet Water)

By formula: CH3O- + H2O = (CH3O- bullet H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar106. ± 9.2kJ/molCIDTDeTuri and Ervin, 1999gas phase; B
Deltar100.kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M,B,M
Quantity Value Units Method Reference Comment
Deltar95.8J/mol*KPHPMSMeot-ner and Sieck, 1986gas phase; M
Deltar95.8J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar71.1 ± 1.3kJ/molTDAsMeot-ner and Sieck, 1986gas phase; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
64.4296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(OH-)H2O, DG>; Meot-Ner(Mautner), 1986; M

(CH3O- bullet Water) + Methyl Alcohol = (CH3O- bullet Methyl Alcohol bullet Water)

By formula: (CH3O- bullet H2O) + CH4O = (CH3O- bullet CH4O bullet H2O)

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
57.3296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(CH3O-)2H2O; Meot-Ner(Mautner), 1986; M

(CH3O- bullet Water bullet Methyl Alcohol) + Water = (CH3O- bullet 2Water bullet Methyl Alcohol)

By formula: (CH3O- bullet H2O bullet CH4O) + H2O = (CH3O- bullet 2H2O bullet CH4O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar63.6kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar116.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

(CH3O- bullet Water) + Water = (CH3O- bullet 2Water)

By formula: (CH3O- bullet H2O) + H2O = (CH3O- bullet 2H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar80.3kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar106.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
34.296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(OH-)2H2O; Meot-Ner(Mautner), 1986; M

(CH3O- bullet 2Water) + Water = (CH3O- bullet 3Water)

By formula: (CH3O- bullet 2H2O) + H2O = (CH3O- bullet 3H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar61.9kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar102.J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
33.296.FAMacKay and Bohme, 1978gas phase; From thermochemical cycle,switching reaction(OH-)3H2O; Meot-Ner(Mautner), 1986; M

(CH3O- bullet 3Water) + Water = (CH3O- bullet 4Water)

By formula: (CH3O- bullet 3H2O) + H2O = (CH3O- bullet 4H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Deltar46.0kJ/molPHPMSMeot-Ner(Mautner), 1986gas phase; n; M
Quantity Value Units Method Reference Comment
Deltar83.7J/mol*KPHPMSMeot-Ner(Mautner), 1986gas phase; n; M

Vibrational and/or electronic energy levels

Go To: Top, 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: Marilyn E. Jacox

State:   ?


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Td = 12655 ± 15 gas Engleking, Ellison, et al., 1978
Osborn, Leahy, et al., 1998, 2
Ramond, Davico, et al., 2000, 2
Nee, Osterwalder, et al., 2006

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 3 1113 gas TPE Nee, Osterwalder, et al., 2006
e 6 1120 gas TPE Nee, Osterwalder, et al., 2006

Additional references: Jacox, 1994, page 242; Jacox, 2003, page 260; Oakes, Harding, et al., 1985

Notes

dPhotodissociation threshold

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, 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.

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Osborn, Leahy, et al., 1998, 2
Osborn, D.L.; Leahy, D.J.; Kim, E.H.; de Beer, E.; Neumark, D.M., Photoelectron spectroscopy of CH3O- and CD3O-, Chem. Phys. Lett., 1998, 292, 4-6, 651, https://doi.org/10.1016/S0009-2614(98)00717-9 . [all data]

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Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, References