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Carbon dioxide

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Ion clustering data

Go To: Top, 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
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

Bromine anion + Carbon dioxide = (Bromine anion • Carbon dioxide)

By formula: Br- + CO2 = (Br- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.3 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B
ΔrH°6.7 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°16.5cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°1.8 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Bromine anion • Carbon dioxide) + Carbon dioxide = (Bromine anion • 2Carbon dioxide)

By formula: (Br- • CO2) + CO2 = (Br- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°6.0 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°19.0cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°0.3 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Bromine anion • 2Carbon dioxide) + Carbon dioxide = (Bromine anion • 3Carbon dioxide)

By formula: (Br- • 2CO2) + CO2 = (Br- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 3Carbon dioxide) + Carbon dioxide = (Bromine anion • 4Carbon dioxide)

By formula: (Br- • 3CO2) + CO2 = (Br- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.2 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 4Carbon dioxide) + Carbon dioxide = (Bromine anion • 5Carbon dioxide)

By formula: (Br- • 4CO2) + CO2 = (Br- • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.2 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 5Carbon dioxide) + Carbon dioxide = (Bromine anion • 6Carbon dioxide)

By formula: (Br- • 5CO2) + CO2 = (Br- • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.0 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 6Carbon dioxide) + Carbon dioxide = (Bromine anion • 7Carbon dioxide)

By formula: (Br- • 6CO2) + CO2 = (Br- • 7CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.6 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 7Carbon dioxide) + Carbon dioxide = (Bromine anion • 8Carbon dioxide)

By formula: (Br- • 7CO2) + CO2 = (Br- • 8CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.7 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 8Carbon dioxide) + Carbon dioxide = (Bromine anion • 9Carbon dioxide)

By formula: (Br- • 8CO2) + CO2 = (Br- • 9CO2)

Quantity Value Units Method Reference Comment
ΔrH°1.8 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 9Carbon dioxide) + Carbon dioxide = (Bromine anion • 10Carbon dioxide)

By formula: (Br- • 9CO2) + CO2 = (Br- • 10CO2)

Quantity Value Units Method Reference Comment
ΔrH°1.8 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Bromine anion • 10Carbon dioxide) + Carbon dioxide = (Bromine anion • 11Carbon dioxide)

By formula: (Br- • 10CO2) + CO2 = (Br- • 11CO2)

Quantity Value Units Method Reference Comment
ΔrH°0.5 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

Formyl cation + Carbon dioxide = (Formyl cation • Carbon dioxide)

By formula: CHO+ + CO2 = (CHO+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°12.6kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.4cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M

(Formyl cation • Carbon dioxide) + Carbon dioxide = (Formyl cation • 2Carbon dioxide)

By formula: (CHO+ • CO2) + CO2 = (CHO+ • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.2kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.7cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M

(Formyl cation • 2Carbon dioxide) + Carbon dioxide = (Formyl cation • 3Carbon dioxide)

By formula: (CHO+ • 2CO2) + CO2 = (CHO+ • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.9kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.7cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M

(Formyl cation • 3Carbon dioxide) + Carbon dioxide = (Formyl cation • 4Carbon dioxide)

By formula: (CHO+ • 3CO2) + CO2 = (CHO+ • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°8.4kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KN/AHiraoka, Shoda, et al., 1986gas phase; Entropy change calculated or estimated; M

CHO2+ + Carbon dioxide = (CHO2+ • Carbon dioxide)

By formula: CHO2+ + CO2 = (CHO2+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°19.8kcal/molPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrH°18.0kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
ΔrH°19.1kcal/molPHPMSJennings, Headley, et al., 1982gas phase; M
ΔrH°20.1kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.6cal/mol*KPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrS°22.2cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
ΔrS°27.1cal/mol*KPHPMSJennings, Headley, et al., 1982gas phase; M
ΔrS°24.2cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(CHO2+ • Carbon dioxide) + Carbon dioxide = (CHO2+ • 2Carbon dioxide)

By formula: (CHO2+ • CO2) + CO2 = (CHO2+ • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.9kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M

(CHO2+ • 2Carbon dioxide) + Carbon dioxide = (CHO2+ • 3Carbon dioxide)

By formula: (CHO2+ • 2CO2) + CO2 = (CHO2+ • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.9kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KN/AHiraoka, Shoda, et al., 1986gas phase; Entropy change calculated or estimated; M

(HCO2 anion • 4294967295Carbon dioxide) + Carbon dioxide = HCO2 anion

By formula: (CHO2- • 4294967295CO2) + CO2 = CHO2-

Quantity Value Units Method Reference Comment
ΔrH°51.6 ± 2.3kcal/molN/ACaldwell, Renneboog, et al., 1989gas phase; B

Methyl cation + Carbon dioxide = (Methyl cation • Carbon dioxide)

By formula: CH3+ + CO2 = (CH3+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°49.4kcal/molPHPMSMcMahon, Heinis, et al., 1988gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 48.3 kcal/mol; Foster, Williamson, et al., 1974; M

CH6N+ + Carbon dioxide = (CH6N+ • Carbon dioxide)

By formula: CH6N+ + CO2 = (CH6N+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°13.2kcal/molPHPMSMeot-Ner (Mautner), 1978gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.4cal/mol*KPHPMSMeot-Ner (Mautner), 1978gas phase; M

CN- + Carbon dioxide = (CN- • Carbon dioxide)

By formula: CN- + CO2 = (CN- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°17.30 ± 0.80kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°31.5cal/mol*KPHPMSLarson, Szulejko, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°7.90 ± 0.20kcal/molTDAsLarson, Szulejko, et al., 1988gas phase; B

CO2+ + Carbon dioxide = (CO2+ • Carbon dioxide)

By formula: CO2+ + CO2 = (CO2+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°16. ± 1.kcal/molAVGN/AAverage of 7 out of 10 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°19.1cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
ΔrS°18.6cal/mol*KDTIllies, 1988gas phase; ΔrH(0 K)=15.9 kcal/mol; M
ΔrS°19.5cal/mol*KDTVan Koppen, Kemper, et al., 1983gas phase; M
ΔrS°22.8cal/mol*KPHPMSHeadley, Mason, et al., 1982gas phase; M
ΔrS°21.1cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(CO2+ • Carbon dioxide) + Carbon dioxide = (CO2+ • 2Carbon dioxide)

By formula: (CO2+ • CO2) + CO2 = (CO2+ • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.6 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
ΔrH°8.3kcal/molEICameron, Aitken, et al., 1994gas phase; M
ΔrH°3.3kcal/molPILinn and Ng, 1981gas phase; M
ΔrH°6.0kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°14.1cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
ΔrS°24.0cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(CO2+ • 2Carbon dioxide) + Carbon dioxide = (CO2+ • 3Carbon dioxide)

By formula: (CO2+ • 2CO2) + CO2 = (CO2+ • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.0kcal/molEICameron, Aitken, et al., 1994gas phase; M
ΔrH°5.1 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
ΔrH°2.8kcal/molPILinn and Ng, 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.1cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M

(CO2+ • 3Carbon dioxide) + Carbon dioxide = (CO2+ • 4Carbon dioxide)

By formula: (CO2+ • 3CO2) + CO2 = (CO2+ • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.8 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.7cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M

(CO2+ • 4Carbon dioxide) + Carbon dioxide = (CO2+ • 5Carbon dioxide)

By formula: (CO2+ • 4CO2) + CO2 = (CO2+ • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.3 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.7cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M

(CO2+ • 5Carbon dioxide) + Carbon dioxide = (CO2+ • 6Carbon dioxide)

By formula: (CO2+ • 5CO2) + CO2 = (CO2+ • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.0kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AHiraoka, Nakajima, et al., 1988gas phase; Entropy change calculated or estimated; M

CO3- + Carbon dioxide = C2O5-

By formula: CO3- + CO2 = C2O5-

Quantity Value Units Method Reference Comment
ΔrH°5.90 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
ΔrH°7.10 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°1.0 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
ΔrG°0.60 ± 0.20kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

CO3- + Carbon dioxide = (CO3- • Carbon dioxide)

By formula: CO3- + CO2 = (CO3- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.9 ± 0.2kcal/molPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°16.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M

(CO3- • Carbon dioxide) + Carbon dioxide = (CO3- • 2Carbon dioxide)

By formula: (CO3- • CO2) + CO2 = (CO3- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.7 ± 0.2kcal/molPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°17.9cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M

(CO3- • 2Carbon dioxide) + Carbon dioxide = (CO3- • 3Carbon dioxide)

By formula: (CO3- • 2CO2) + CO2 = (CO3- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.5 ± 0.2kcal/molPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.9cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M

(CO3- • 3Carbon dioxide) + Carbon dioxide = (CO3- • 4Carbon dioxide)

By formula: (CO3- • 3CO2) + CO2 = (CO3- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.2 ± 0.2kcal/molPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M

(CO3- • 4Carbon dioxide) + Carbon dioxide = (CO3- • 5Carbon dioxide)

By formula: (CO3- • 4CO2) + CO2 = (CO3- • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.8 ± 0.2kcal/molPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.0cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M

(CO3- • 5Carbon dioxide) + Carbon dioxide = (CO3- • 6Carbon dioxide)

By formula: (CO3- • 5CO2) + CO2 = (CO3- • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.7 ± 0.2kcal/molPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.9cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M

(CO3- • 6Carbon dioxide) + Carbon dioxide = (CO3- • 7Carbon dioxide)

By formula: (CO3- • 6CO2) + CO2 = (CO3- • 7CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.45kcal/molPHPMSHiraoka and Yamabe, 1992gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°22.cal/mol*KN/AHiraoka and Yamabe, 1992gas phase; Entropy change calculated or estimated; M

(HCOOCH radical anion • 4294967295Carbon dioxide) + Carbon dioxide = HCOOCH radical anion

By formula: (C2H2O2- • 4294967295CO2) + CO2 = C2H2O2-

Quantity Value Units Method Reference Comment
ΔrH°61.7 ± 2.7kcal/molCIDTWenthold and Squires, 1994gas phase; B

(MeCO2 anion • 4294967295Carbon dioxide) + Carbon dioxide = MeCO2 anion

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

Quantity Value Units Method Reference Comment
ΔrH°59.7 ± 2.5kcal/molCIDCWenthold and Squires, 1994gas phase; B

C2H8N+ + Carbon dioxide = (C2H8N+ • Carbon dioxide)

By formula: C2H8N+ + CO2 = (C2H8N+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°11.2kcal/molPHPMSMeot-Ner (Mautner), 1978gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20.8cal/mol*KPHPMSMeot-Ner (Mautner), 1978gas phase; M

C2O5- + 2Carbon dioxide = C3O7-

By formula: C2O5- + 2CO2 = C3O7-

Quantity Value Units Method Reference Comment
ΔrH°5.7 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°0.4 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

C3O7- + 3Carbon dioxide = C4O9-

By formula: C3O7- + 3CO2 = C4O9-

Quantity Value Units Method Reference Comment
ΔrH°5.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°-1.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

C4O9- + 4Carbon dioxide = C5O11-

By formula: C4O9- + 4CO2 = C5O11-

Quantity Value Units Method Reference Comment
ΔrH°5.2 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°-1.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

C5O11- + 5Carbon dioxide = C6O13-

By formula: C5O11- + 5CO2 = C6O13-

Quantity Value Units Method Reference Comment
ΔrH°4.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°-1.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

C6O13- + 6Carbon dioxide = C7O15-

By formula: C6O13- + 6CO2 = C7O15-

Quantity Value Units Method Reference Comment
ΔrH°4.7 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°-1.9 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

C7O15- + 7Carbon dioxide = C8O17-

By formula: C7O15- + 7CO2 = C8O17-

Quantity Value Units Method Reference Comment
ΔrH°4.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; Estimated entropy; single temperature measurement; B
Quantity Value Units Method Reference Comment
ΔrG°-2.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; Estimated entropy; single temperature measurement; B

(Ca+2 • 4Carbon dioxide • Calcium carbonate (precipitated)) + Carbon dioxide = (Ca+2 • 5Carbon dioxide • Calcium carbonate (precipitated))

By formula: (Ca+2 • 4CO2 • CCaO3) + CO2 = (Ca+2 • 5CO2 • CCaO3)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
7.6296.FASpears and Fehsenfeld, 1972gas phase; M

(Ca+2 • 5Carbon dioxide) + Carbon dioxide = (Ca+2 • 6Carbon dioxide)

By formula: (Ca+2 • 5CO2) + CO2 = (Ca+2 • 6CO2)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
8.1296.FASpears and Fehsenfeld, 1972gas phase; M

Chlorine anion + Carbon dioxide = (Chlorine anion • Carbon dioxide)

By formula: Cl- + CO2 = (Cl- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.80 ± 0.50kcal/molPDisArnold, Bradforth, et al., 1995gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B
ΔrH°7.60kcal/molTDEqHiraoka, Shoda, et al., 1986gas phase; B,M
ΔrH°8.00 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°18.2cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
ΔrS°19.6cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°2.10kcal/molTDEqHiraoka, Shoda, et al., 1986gas phase; B
ΔrG°2.10 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

(Chlorine anion • Carbon dioxide) + Carbon dioxide = (Chlorine anion • 2Carbon dioxide)

By formula: (Cl- • CO2) + CO2 = (Cl- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.2 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
ΔrH°7.20kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°20.8cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
ΔrG°1.00kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B

(Chlorine anion • 2Carbon dioxide) + Carbon dioxide = (Chlorine anion • 3Carbon dioxide)

By formula: (Cl- • 2CO2) + CO2 = (Cl- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.8 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
ΔrH°6.80kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.4cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°0.1 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
ΔrG°0.10kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B

(Chlorine anion • 3Carbon dioxide) + Carbon dioxide = (Chlorine anion • 4Carbon dioxide)

By formula: (Cl- • 3CO2) + CO2 = (Cl- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.40kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; entropy estimated.; B,M
Quantity Value Units Method Reference Comment
ΔrS°24.cal/mol*KN/AHiraoka, Shoda, et al., 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°-0.80kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; entropy estimated.; B

Cesium ion (1+) + Carbon dioxide = (Cesium ion (1+) • Carbon dioxide)

By formula: Cs+ + CO2 = (Cs+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.2kcal/molDTMcKnight and Sawina, 1972gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°14.3cal/mol*KDTMcKnight and Sawina, 1972gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.4301.HPMSBanic and Iribarne, 1985gas phase; electric fields; M

(Cesium ion (1+) • Water) + Carbon dioxide = (Cesium ion (1+) • Carbon dioxide • Water)

By formula: (Cs+ • H2O) + CO2 = (Cs+ • CO2 • H2O)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
1.2301.HPMSBanic and Iribarne, 1985gas phase; electric fields; M

Fluorine anion + Carbon dioxide = (Fluorine anion • Carbon dioxide)

By formula: F- + CO2 = (F- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°32.07kcal/molN/AArnold, Bradforth, et al., 1995gas phase; B
ΔrH°32.3 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
ΔrH°31.7 ± 2.0kcal/molIMRELarson and McMahon, 1985gas phase; B,M
ΔrH°33.0 ± 3.0kcal/molIMREMcMahon and Northcott, 1978gas phase; B
Quantity Value Units Method Reference Comment
ΔrS°26.7cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
ΔrS°24.cal/mol*KN/ALarson and McMahon, 1985gas phase; switching reaction,Thermochemical ladder(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
ΔrG°24.3 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
ΔrG°24.5 ± 2.0kcal/molIMRELarson and McMahon, 1985gas phase; B,M
ΔrG°11.6kcal/molFASpears and Ferguson, 1973gas phase; DG>; M

(Fluorine anion • Carbon dioxide) + Carbon dioxide = (Fluorine anion • 2Carbon dioxide)

By formula: (F- • CO2) + CO2 = (F- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.3 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°18.2cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°1.9 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • 2Carbon dioxide) + Carbon dioxide = (Fluorine anion • 3Carbon dioxide)

By formula: (F- • 2CO2) + CO2 = (F- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.2 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.6cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°0.5 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • 3Carbon dioxide) + Carbon dioxide = (Fluorine anion • 4Carbon dioxide)

By formula: (F- • 3CO2) + CO2 = (F- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.8 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°20.3cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-0.2 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • 4Carbon dioxide) + Carbon dioxide = (Fluorine anion • 5Carbon dioxide)

By formula: (F- • 4CO2) + CO2 = (F- • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.6 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.3cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.0 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • 5Carbon dioxide) + Carbon dioxide = (Fluorine anion • 6Carbon dioxide)

By formula: (F- • 5CO2) + CO2 = (F- • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.3 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°22.5cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • 6Carbon dioxide) + Carbon dioxide = (Fluorine anion • 7Carbon dioxide)

By formula: (F- • 6CO2) + CO2 = (F- • 7CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.9kcal/molPHPMSHiraoka, Mizuse, et al., 1987gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°18.cal/mol*KN/AHiraoka, Mizuse, et al., 1987gas phase; Entropy change calculated or estimated; M

Iron ion (1+) + Carbon dioxide = (Iron ion (1+) • Carbon dioxide)

By formula: Fe+ + CO2 = (Fe+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°14.3 ± 1.0kcal/molCIDTRodgers and Armentrout, 2000RCD

HO- + Carbon dioxide = (HO- • Carbon dioxide)

By formula: HO- + CO2 = (HO- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°50.9 ± 2.5kcal/molCIDTSquires, 1992gas phase; Dissociative protonation threshold at nPrSH, 9 kcal> calc. CIDC(HOCO2-..HSH) = 7:1 HOCO2-; B
ΔrH°87.60kcal/molEndoHierl and Paulson, 1984gas phase; Implies ΔHacid = 291.4, anion appears too stable - JEB; B

Hydroxyl anion + Carbon dioxide = (Hydroxyl anion • Carbon dioxide)

By formula: HO- + CO2 = (HO- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°88.kcal/molCIDHierl and Paulson, 1984gas phase; M

Hydronium cation + Carbon dioxide = (Hydronium cation • Carbon dioxide)

By formula: H3O+ + CO2 = (H3O+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°14.3kcal/molPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrH°15.3kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
ΔrH°14.4kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.2cal/mol*KPHPMSSzulejko and McMahon, 1992gas phase; M
ΔrS°24.6cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
ΔrS°20.7cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(Hydronium cation • Carbon dioxide) + Carbon dioxide = (Hydronium cation • 2Carbon dioxide)

By formula: (H3O+ • CO2) + CO2 = (H3O+ • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°12.4kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.5cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M

(Hydronium cation • 2Carbon dioxide) + Carbon dioxide = (Hydronium cation • 3Carbon dioxide)

By formula: (H3O+ • 2CO2) + CO2 = (H3O+ • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°10.5kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.9cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M

NH4+ + Carbon dioxide = (NH4+ • Carbon dioxide)

By formula: H4N+ + CO2 = (H4N+ • CO2)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.3296.FASpears and Fehsenfeld, 1972gas phase; M

(NH4+ • 2Water) + Carbon dioxide = (NH4+ • Carbon dioxide • 2Water)

By formula: (H4N+ • 2H2O) + CO2 = (H4N+ • CO2 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrG°1.3kcal/molHPMSBanic and Iribarne, 1985gas phase; electric fields; M

Iodide + Carbon dioxide = (Iodide • Carbon dioxide)

By formula: I- + CO2 = (I- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.7 ± 1.8kcal/molN/APiani, Becucci, et al., 2008gas phase; Stated electron affinity is the Vertical Detachment Energy; B
ΔrH°4.0 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°4.7 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
ΔrH°3.20kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
ΔrH°5.60 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°13.4cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
ΔrS°18.2cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°0.7 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
ΔrG°0.80 ± 0.10kcal/molTDAsBanic and Iribarne, 1985gas phase; B,M
ΔrG°0.40 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

(Iodide • Carbon dioxide) + Carbon dioxide = (Iodide • 2Carbon dioxide)

By formula: (I- • CO2) + CO2 = (I- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.6 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°4.7 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
ΔrH°2.60kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
Quantity Value Units Method Reference Comment
ΔrS°17.3cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°0.7 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Iodide • 2Carbon dioxide) + Carbon dioxide = (Iodide • 3Carbon dioxide)

By formula: (I- • 2CO2) + CO2 = (I- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°2.20kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
ΔrH°3.7 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°4.6 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°18.4cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-0.6 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Iodide • 3Carbon dioxide) + Carbon dioxide = (Iodide • 4Carbon dioxide)

By formula: (I- • 3CO2) + CO2 = (I- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°1.80kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
ΔrH°3.6 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°4.5 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°-1.0 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Iodide • 4Carbon dioxide) + Carbon dioxide = (Iodide • 5Carbon dioxide)

By formula: (I- • 4CO2) + CO2 = (I- • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°1.70kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
ΔrH°3.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°4.3 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°19.0cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Iodide • 5Carbon dioxide) + Carbon dioxide = (Iodide • 6Carbon dioxide)

By formula: (I- • 5CO2) + CO2 = (I- • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.0 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°1.80kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
ΔrH°4.2kcal/molPHPMSHiraoka, Mizuse, et al., 1987gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°19.cal/mol*KN/AHiraoka, Mizuse, et al., 1987gas phase; Entropy change calculated or estimated; M

(Iodide • 6Carbon dioxide) + Carbon dioxide = (Iodide • 7Carbon dioxide)

By formula: (I- • 6CO2) + CO2 = (I- • 7CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.3 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°1.90kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B

(Iodide • 7Carbon dioxide) + Carbon dioxide = (Iodide • 8Carbon dioxide)

By formula: (I- • 7CO2) + CO2 = (I- • 8CO2)

Quantity Value Units Method Reference Comment
ΔrH°3.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
ΔrH°1.90kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B

(Iodide • 8Carbon dioxide) + Carbon dioxide = (Iodide • 9Carbon dioxide)

By formula: (I- • 8CO2) + CO2 = (I- • 9CO2)

Quantity Value Units Method Reference Comment
ΔrH°2.8 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Iodide • 9Carbon dioxide) + Carbon dioxide = (Iodide • 10Carbon dioxide)

By formula: (I- • 9CO2) + CO2 = (I- • 10CO2)

Quantity Value Units Method Reference Comment
ΔrH°0.9 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Iodide • 10Carbon dioxide) + Carbon dioxide = (Iodide • 11Carbon dioxide)

By formula: (I- • 10CO2) + CO2 = (I- • 11CO2)

Quantity Value Units Method Reference Comment
ΔrH°1.0 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Iodide • 11Carbon dioxide) + Carbon dioxide = (Iodide • 12Carbon dioxide)

By formula: (I- • 11CO2) + CO2 = (I- • 12CO2)

Quantity Value Units Method Reference Comment
ΔrH°1.6 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

(Iodide • 12Carbon dioxide) + Carbon dioxide = (Iodide • 13Carbon dioxide)

By formula: (I- • 12CO2) + CO2 = (I- • 13CO2)

Quantity Value Units Method Reference Comment
ΔrH°1.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B

Potassium ion (1+) + Carbon dioxide = (Potassium ion (1+) • Carbon dioxide)

By formula: K+ + CO2 = (K+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°8.5kcal/molHPMSCastleman and Keesee, 1981gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°15.2cal/mol*KHPMSCastleman and Keesee, 1981gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
3.7310.DTKeller and Beyer, 1971gas phase; low E/N; M

Kr+ + Carbon dioxide = (Kr+ • Carbon dioxide)

By formula: Kr+ + CO2 = (Kr+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°18.9 ± 0.7kcal/molSIFTPraxmarer, Jordan, et al., 1993gas phase; switching reaction(Kr+)Kr; Wadt, 1978, Radzig and Smirnov, 1985; M

Magnesium ion (1+) + Carbon dioxide = (Magnesium ion (1+) • Carbon dioxide)

By formula: Mg+ + CO2 = (Mg+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°13.8 ± 1.4kcal/molCIDTAndersen, Muntean, et al., 2000RCD

(Magnesium ion (1+) • Carbon dioxide) + Carbon dioxide = (Magnesium ion (1+) • 2Carbon dioxide)

By formula: (Mg+ • CO2) + CO2 = (Mg+ • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°11.5 ± 0.7kcal/molCIDTAndersen, Muntean, et al., 2000RCD

(Magnesium ion (1+) • 2Carbon dioxide) + Carbon dioxide = (Magnesium ion (1+) • 3Carbon dioxide)

By formula: (Mg+ • 2CO2) + CO2 = (Mg+ • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°10.6 ± 1.4kcal/molCIDTAndersen, Muntean, et al., 2000RCD

Nitric oxide anion + Carbon dioxide = (Nitric oxide anion • Carbon dioxide)

By formula: NO- + CO2 = (NO- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°8.5 ± 0.3kcal/molDTIllies, 1988gas phase; ΔrH(0 K)=8.60 kcal/mol; M
ΔrH°7.7 ± 0.4kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; M
ΔrH°13.8kcal/molFADunkin, Fehsenfeld, et al., 1971gas phase; switching reaction(NO+)NO, ΔrH<; M
Quantity Value Units Method Reference Comment
ΔrS°18.0cal/mol*KDTIllies, 1988gas phase; ΔrH(0 K)=8.60 kcal/mol; M
ΔrS°13.7cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M

(Nitric oxide anion • Carbon dioxide) + Carbon dioxide = (Nitric oxide anion • 2Carbon dioxide)

By formula: (NO- • CO2) + CO2 = (NO- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.4 ± 0.4kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°17.1cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M

(Nitric oxide anion • 2Carbon dioxide) + Carbon dioxide = (Nitric oxide anion • 3Carbon dioxide)

By formula: (NO- • 2CO2) + CO2 = (NO- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.2 ± 0.4kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.8cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M

(Nitric oxide anion • 3Carbon dioxide) + Carbon dioxide = (Nitric oxide anion • 4Carbon dioxide)

By formula: (NO- • 3CO2) + CO2 = (NO- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.7 ± 0.3kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.4cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M

(Nitric oxide anion • 4Carbon dioxide) + Carbon dioxide = (Nitric oxide anion • 5Carbon dioxide)

By formula: (NO- • 4CO2) + CO2 = (NO- • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.2 ± 0.3kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.9cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M

(Nitric oxide anion • 5Carbon dioxide) + Carbon dioxide = (Nitric oxide anion • 6Carbon dioxide)

By formula: (NO- • 5CO2) + CO2 = (NO- • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.0kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°28.cal/mol*KN/AHiraoka and Yamabe, 1991gas phase; Entropy change calculated or estimated; M

Nitrogen oxide anion + Carbon dioxide = (Nitrogen oxide anion • Carbon dioxide)

By formula: NO2- + CO2 = (NO2- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.30 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
ΔrH°9.30 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°17.2cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
ΔrS°24.2cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°2.1 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
ΔrG°2.00 ± 0.20kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

(Nitrogen oxide anion • Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 2Carbon dioxide)

By formula: (NO2- • CO2) + CO2 = (NO2- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.7 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°19.0cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°1.0 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 2Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 3Carbon dioxide)

By formula: (NO2- • 2CO2) + CO2 = (NO2- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.3 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°23.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-0.7 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 3Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 4Carbon dioxide)

By formula: (NO2- • 3CO2) + CO2 = (NO2- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.0 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°25.9cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.7 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 4Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 5Carbon dioxide)

By formula: (NO2- • 4CO2) + CO2 = (NO2- • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.2 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°23.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 5Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 6Carbon dioxide)

By formula: (NO2- • 5CO2) + CO2 = (NO2- • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.9 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°23.1cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-2.0 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 6Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 7Carbon dioxide)

By formula: (NO2- • 6CO2) + CO2 = (NO2- • 7CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.4 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°21.7cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-2.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 7Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 8Carbon dioxide)

By formula: (NO2- • 7CO2) + CO2 = (NO2- • 8CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.2 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°21.7cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-2.3 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

NO3 anion + Carbon dioxide = (NO3 anion • Carbon dioxide)

By formula: NO3- + CO2 = (NO3- • CO2)

Quantity Value Units Method Reference Comment
ΔrG°2.70 ± 0.10kcal/molTDAsBanic and Iribarne, 1985gas phase; B,M

Sodium ion (1+) + Carbon dioxide = (Sodium ion (1+) • Carbon dioxide)

By formula: Na+ + CO2 = (Na+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°15.9kcal/molHPMSPeterson, Mark, et al., 1984gas phase; M
ΔrH°13.7kcal/molFAPerry, Rowe, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20.1cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; M
ΔrS°19.8cal/mol*KFAPerry, Rowe, et al., 1980gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.6310.DTKeller and Beyer, 1971, 2gas phase; low E/N; M

(Sodium ion (1+) • Carbon dioxide) + Carbon dioxide = (Sodium ion (1+) • 2Carbon dioxide)

By formula: (Na+ • CO2) + CO2 = (Na+ • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°11.0kcal/molHPMSPeterson, Mark, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.7cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
4.8310.DTKeller and Beyer, 1971, 2gas phase; low E/N; M

(Sodium ion (1+) • 2Carbon dioxide) + Carbon dioxide = (Sodium ion (1+) • 3Carbon dioxide)

By formula: (Na+ • 2CO2) + CO2 = (Na+ • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°9.7kcal/molHPMSPeterson, Mark, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°24.0cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; M

(Sodium ion (1+) • 3Carbon dioxide) + Carbon dioxide = (Sodium ion (1+) • 4Carbon dioxide)

By formula: (Na+ • 3CO2) + CO2 = (Na+ • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°8.4kcal/molHPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°25.cal/mol*KN/APeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.7310.HPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M

(Sodium ion (1+) • Water) + Carbon dioxide = (Sodium ion (1+) • Carbon dioxide • Water)

By formula: (Na+ • H2O) + CO2 = (Na+ • CO2 • H2O)

Quantity Value Units Method Reference Comment
ΔrH°12.6kcal/molHPMSPeterson, Mark, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°22.5cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; M

(Sodium ion (1+) • 2Water) + Carbon dioxide = (Sodium ion (1+) • Carbon dioxide • 2Water)

By formula: (Na+ • 2H2O) + CO2 = (Na+ • CO2 • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°10.3kcal/molHPMSPeterson, Mark, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°23.9cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; M

(Sodium ion (1+) • 3Water) + Carbon dioxide = (Sodium ion (1+) • Carbon dioxide • 3Water)

By formula: (Na+ • 3H2O) + CO2 = (Na+ • CO2 • 3H2O)

Quantity Value Units Method Reference Comment
ΔrH°7.2kcal/molHPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°25.cal/mol*KN/APeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°-0.3kcal/molHPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M

O- + Carbon dioxide = (O- • Carbon dioxide)

By formula: O- + CO2 = (O- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°48. ± 10.kcal/molAVGN/AAverage of 8 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrG°48.0 ± 5.0kcal/molIMREAdams and Bohme, 1970gas phase; O3- + CO2 <=> CO3- + O2; B

(O- • Carbon dioxide) + Carbon dioxide = (O- • 2Carbon dioxide)

By formula: (O- • CO2) + CO2 = (O- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°7.1kcal/molHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°21.8cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M

(O- • Water) + Carbon dioxide = (O- • Carbon dioxide • Water)

By formula: (O- • H2O) + CO2 = (O- • CO2 • H2O)

Quantity Value Units Method Reference Comment
ΔrH°36.4kcal/molPDissRoehl, Snodgrass, et al., 1991gas phase; ΔrH>; M

Oxygen cation + Carbon dioxide = (Oxygen cation • Carbon dioxide)

By formula: O2+ + CO2 = (O2+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°9.8 ± 0.9kcal/molAVGN/AAverage of 4 out of 6 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrS°17.5cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
ΔrS°18.9cal/mol*KDTIllies, 1988gas phase; ΔrH(0 K)=9.80 kcal/mol; M
ΔrS°20.7cal/mol*KN/ADotan, Davidson, et al., 1978gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970; M
ΔrS°20.cal/mol*KN/AMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change calculated or estimated, DG>, ΔrH>; M
Quantity Value Units Method Reference Comment
ΔrG°4.4kcal/molDTRakshit and Warneck, 1981gas phase; M
ΔrG°4.3kcal/molFADotan, Davidson, et al., 1978gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.4600.PHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change calculated or estimated, DG>, ΔrH>; M

(Oxygen cation • Carbon dioxide) + Carbon dioxide = (Oxygen cation • 2Carbon dioxide)

By formula: (O2+ • CO2) + CO2 = (O2+ • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°8.6 ± 0.5kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
ΔrH°7.5kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
ΔrS°18.7cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
ΔrS°15.cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M

(Oxygen cation • 2Carbon dioxide) + Carbon dioxide = (Oxygen cation • 3Carbon dioxide)

By formula: (O2+ • 2CO2) + CO2 = (O2+ • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.2 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.8cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M

(Oxygen cation • 3Carbon dioxide) + Carbon dioxide = (Oxygen cation • 4Carbon dioxide)

By formula: (O2+ • 3CO2) + CO2 = (O2+ • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°5.1 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°19.6cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M

(Oxygen cation • 4Carbon dioxide) + Carbon dioxide = (Oxygen cation • 5Carbon dioxide)

By formula: (O2+ • 4CO2) + CO2 = (O2+ • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.5 ± 0.5kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°20.0cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M

(Oxygen cation • 5Carbon dioxide) + Carbon dioxide = (Oxygen cation • 6Carbon dioxide)

By formula: (O2+ • 5CO2) + CO2 = (O2+ • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.0kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/AHiraoka, Nakajima, et al., 1988gas phase; Entropy change calculated or estimated; M

Oxygen anion + Carbon dioxide = (Oxygen anion • Carbon dioxide)

By formula: O2- + CO2 = (O2- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°19.00 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
ΔrH°17.7 ± 1.8kcal/molIMREPack and Phelps, 1966gas phase; Corrected with more recent EA(O2) = 0.45 eV; B,M
ΔrH°25.4 ± 4.6kcal/molPDisVestal and Mauclaire, 1977gas phase; B
Quantity Value Units Method Reference Comment
ΔrS°24.2cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
ΔrS°21.cal/mol*KDTPack and Phelps, 1966gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°11.7 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
ΔrG°12.2 ± 1.2kcal/molIMREPack and Phelps, 1966gas phase; Corrected with more recent EA(O2) = 0.45 eV; B
ΔrG°10.0kcal/molFAAdams and Bohme, 1970gas phase; switching reaction(O2-)O2; Conway and Nesbit, 1968; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
12.9296.FAFehsenfeld and Ferguson, 1974gas phase; switching reaction(O2-)H2O; Arshadi and Kebarle, 1970; M

(Oxygen anion • Carbon dioxide) + Carbon dioxide = (Oxygen anion • 2Carbon dioxide)

By formula: (O2- • CO2) + CO2 = (O2- • 2CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.60 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°18.2cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°1.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 2Carbon dioxide) + Carbon dioxide = (Oxygen anion • 3Carbon dioxide)

By formula: (O2- • 2CO2) + CO2 = (O2- • 3CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.3 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°23.0cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-0.6 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 3Carbon dioxide) + Carbon dioxide = (Oxygen anion • 4Carbon dioxide)

By formula: (O2- • 3CO2) + CO2 = (O2- • 4CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°18.7cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-0.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 4Carbon dioxide) + Carbon dioxide = (Oxygen anion • 5Carbon dioxide)

By formula: (O2- • 4CO2) + CO2 = (O2- • 5CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°18.4cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 5Carbon dioxide) + Carbon dioxide = (Oxygen anion • 6Carbon dioxide)

By formula: (O2- • 5CO2) + CO2 = (O2- • 6CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.2 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°19.0cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 6Carbon dioxide) + Carbon dioxide = (Oxygen anion • 7Carbon dioxide)

By formula: (O2- • 6CO2) + CO2 = (O2- • 7CO2)

Quantity Value Units Method Reference Comment
ΔrH°4.0 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°19.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°-1.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • Water) + Carbon dioxide = (Oxygen anion • Carbon dioxide • Water)

By formula: (O2- • H2O) + CO2 = (O2- • CO2 • H2O)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
8.2296.FAFehsenfeld and Ferguson, 1974gas phase; switching reaction(O2-)2H2O; Arshadi and Kebarle, 1970; M

O2S+ + Carbon dioxide = (O2S+ • Carbon dioxide)

By formula: O2S+ + CO2 = (O2S+ • CO2)

Quantity Value Units Method Reference Comment
ΔrH°9.6 ± 0.2kcal/molDTIllies, 1988gas phase; ΔrH(0 K)=10.2 kcal/mol; M
Quantity Value Units Method Reference Comment
ΔrS°16.5cal/mol*KDTIllies, 1988gas phase; ΔrH(0 K)=10.2 kcal/mol; M

O3S- + Carbon dioxide = (O3S- • Carbon dioxide)

By formula: O3S- + CO2 = (O3S- • CO2)

Quantity Value Units Method Reference Comment
ΔrH°6.50 ± 0.20kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°20.7cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°0.30 ± 0.20kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

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.

Arnold, Bradforth, et al., 1995
Arnold, D.W.; Bradforth, S.E.; Kim, E.H.; Neumark, D.M., Study of halogen carbon dioxide clusters and the fluoroformyloxyl radical by photodetachment of X(-)(CO2) (X=I,Cl,Br) and FCO2-, J. Chem. Phys., 1995, 102, 9, 3493, https://doi.org/10.1063/1.468575 . [all data]

Hiraoka, Mizuse, et al., 1987
Hiraoka, K.; Mizuse, S.; Yamabe, S., Stability and Structure of Cluster Ions: Halide Ions with CO2, J. Chem. Phys., 1987, 87, 6, 3647, https://doi.org/10.1063/1.452962 . [all data]

Arnold, Bradforth, et al., 1995, 2
Arnold, D.W.; Bradforth, S.E.; Kim, E.H.; Neumark, D.M., Study of I-(CO2)n, Br-(CO2)n, and I-(N2O)n clusters by anion photoelectron spectroscopy, J. Chem. Phys., 1995, 102, 9, 3510, https://doi.org/10.1063/1.468576 . [all data]

Hiraoka, Shoda, et al., 1986
Hiraoka, K.; Shoda, T.; Morise, K.; Yamabe, S.; Kawai, E.; Hirao, K., Stability and structure of cluster ions in the gas phase: Carbon dioxide with Cl-, H3O+, HCO2+ and HCO+, J. Chem. Phys., 1986, 84, 2091. [all data]

Szulejko and McMahon, 1992
Szulejko, J.; McMahon, T.B., personal communication, 1992. [all data]

Jennings, Headley, et al., 1982
Jennings, K.R.; Headley, J.V.; Mason, R.S., The Temperature Dependence of Ion - Molecule Association Reactions, Int. J. Mass. Spectrom. Ion Phys, 1982, 45, 315. [all data]

Meot-Ner (Mautner) and Field, 1977
Meot-Ner (Mautner), M.; Field, F.H., Proton Affinity and Ion - Molecule Clustering in CO2 and CS2. Applications in Martian Ionospheric Chemistry, J. Chem. Phys., 1977, 66, 10, 4527, https://doi.org/10.1063/1.433706 . [all data]

Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P., Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria, Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092 . [all data]

McMahon, Heinis, et al., 1988
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]

Foster, Williamson, et al., 1974
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]

Meot-Ner (Mautner), 1978
Meot-Ner (Mautner), M., Ion - Molecule Condensation Reactions: A Mechanism for Chemical Synthesis in Ionized Reducing Planetary Atmospheres, Origins Life, 1978, 9, 2, 115, https://doi.org/10.1007/BF00931409 . [all data]

Larson, Szulejko, et al., 1988
Larson, J.W.; Szulejko, J.E.; McMahon, T.B., Gas Phase Lewis Acid-Base Interactions. An Experimental Determination of Cyanide Binding Energies From Ion Cyclotron Resonance and High-Pressure Mass Spectrometric Equilibrium Measurements., J. Am. Chem. Soc., 1988, 110, 23, 7604, https://doi.org/10.1021/ja00231a004 . [all data]

Hiraoka, Nakajima, et al., 1988
Hiraoka, K.; Nakajima, G.; Shoda, S., Determination of the Stabilities of CO2+(CO2)n and O2+(CO2)n Clusters with n = 1 - 6, Chem. Phys. Lett., 1988, 146, 6, 535, https://doi.org/10.1016/0009-2614(88)87495-5 . [all data]

Illies, 1988
Illies, A.J., Thermochemistry of the Gas - Phase Ion - Molecule Clustering of CO2+CO2, SO2+CO2, N2O+N2O, O2+CO2, NO+CO2 and NO+N2O: Description of a New Hybrid Drift Tube/Ion Source with Coaxial Electron Beam and Ion Exit Apertures, J. Phys. Chem., 1988, 92, 10, 2889, https://doi.org/10.1021/j100321a037 . [all data]

Van Koppen, Kemper, et al., 1983
Van Koppen, P.A.M.; Kemper, P.R.; Illies, A.J.; Bowers, M.T., An Improved High - Pressure, Temperature - Variable Ion Source with Coaxial Electron Beam/Ion Exit Slit, Int. J. Mass Spectrom. Ion Proc., 1983, 54, 3, 263, https://doi.org/10.1016/0168-1176(83)80015-9 . [all data]

Headley, Mason, et al., 1982
Headley, J.V.; Mason, R.S.; Jennings, K.R., Kinetics, Equilibria and Diffusion of Ions Produced in N2, CO and CO2, Studied as a Function of Temperature using a High - Pressure Pulsed Mass Spectrometer, J. Chem. Soc., 1982, 78, 933. [all data]

Cameron, Aitken, et al., 1994
Cameron, B.R.; Aitken, C.G.; Harland, P.W., Appearence Energies of Small Cluster Ions and their Fragments, J. Chem. Soc. Faraday Trans., 1994, 90, 7, 935, https://doi.org/10.1039/ft9949000935 . [all data]

Linn and Ng, 1981
Linn, S.H.; Ng, C.Y., Photoionization Study of CO2, N2O Dimers and Clusters, J. Chem. Phys., 1981, 75, 10, 4921, https://doi.org/10.1063/1.441931 . [all data]

Hiraoka and Yamabe, 1992
Hiraoka, K.; Yamabe, S., Formation of the Chelate Bonds in the Cluster O2(-)(CO2)n, CO3(-)(CO2)n, and NO2(-)(CO2)n, J. Chem. Phys., 1992, 97, 1, 643, https://doi.org/10.1063/1.463560 . [all data]

Keesee, Lee, et al., 1980
Keesee, R.G.; Lee, N.; Castleman, A.W., Jr., Properties of clusters in the gas phase: V. Complexes of neutral molecules onto negative ions, J. Chem. Phys., 1980, 73, 2195. [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]

Spears and Fehsenfeld, 1972
Spears, K.G.; Fehsenfeld, F.C., Termolecular Association Reactions of Mg, Ca, and Ba Ions, J. Chem. Phys., 1972, 56, 11, 5698, https://doi.org/10.1063/1.1677091 . [all data]

McKnight and Sawina, 1972
McKnight, L.G.; Sawina, J.M., Drift Velocities and Interactions of Cs+ Ions with Atmospheric Gases, J. Chem. Phys., 1972, 57, 12, 5156, https://doi.org/10.1063/1.1678205 . [all data]

Banic and Iribarne, 1985
Banic, C.M.; Iribarne, J.V., Equilibrium Constants for Clustering of Neutral Molecules about Gaseous Ions, J. Chem. Phys., 1985, 83, 12, 6432, https://doi.org/10.1063/1.449543 . [all data]

Larson and McMahon, 1985
Larson, J.W.; McMahon, T.B., Fluoride and chloride affinities of the main group oxides, fluorides, oxofluorides, and alkyls. Quantitative scales of lewis acidities from ICR halide exchange equilibria, J. Am. Chem. Soc., 1985, 107, 766. [all data]

McMahon and Northcott, 1978
McMahon, T.B.; Northcott, C.J., The Fluoroformate Ion FCO2-: An ICR study of the gas phase lewis acidity of carbon dioxide and related isoelectronic species, Can. J. Chem., 1978, 56, 1068. [all data]

Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P., Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions, J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014 . [all data]

Spears and Ferguson, 1973
Spears, K.G.; Ferguson, E.E., Termolecular and Saturated Termolecular Kinetics for Li+ and F-, J. Chem. Phys., 1973, 59, 8, 4174, https://doi.org/10.1063/1.1680610 . [all data]

Rodgers and Armentrout, 2000
Rodgers, M.T.; Armentrout, P.B., Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation, Mass Spectrom. Rev., 2000, 19, 4, 215, https://doi.org/10.1002/1098-2787(200007)19:4<215::AID-MAS2>3.0.CO;2-X . [all data]

Squires, 1992
Squires, R.R., Gas Phase Thermochemical Properties of the Bicarbonate and Bisulfate Ions, Int. J. Mass Spectrom. Ion Proc., 1992, 117, 565, https://doi.org/10.1016/0168-1176(92)80114-G . [all data]

Hierl and Paulson, 1984
Hierl, P.M.; Paulson, J.F., Translational energy dependence of cross sections for reactions of OH- (H2O)n with CO2 and SO2, J. Chem. Phys., 1984, 80, 4890. [all data]

Piani, Becucci, et al., 2008
Piani, G.; Becucci, M.; Bowen, M.S.; Oakman, J.; Hu, Q.; Continetti, R.E., Photodetachment and dissociation dynamics of microsolvated iodide clusters, Phys. Scripta, 2008, 78, 5, 058110, https://doi.org/10.1088/0031-8949/78/05/058110 . [all data]

Gomez, Taylor, et al., 2002
Gomez, H.; Taylor, T.R.; Neumark, D.M., Anion photoelectron spectroscopy of I-2(-)(CO2)(n)(n=1-8) clusters, J. Chem. Phys., 2002, 116, 14, 6111-6117, https://doi.org/10.1063/1.1458246 . [all data]

Castleman and Keesee, 1981
Castleman, A.W.; Keesee, R.G., Electron and Ion Swarms, Proc. Second Int. Swarm Seminar, L. G. Christoforou, ed. (Pergamon Press, New York), 1981, 189-201. [all data]

Keller and Beyer, 1971
Keller, G.E.; Beyer, R.A., Drift Tube Studies of Carbon Dioxide Clustering to Potassium and Sodium Ions, Bull. Am. Phys. Soc., 1971, 16, 214. [all data]

Praxmarer, Jordan, et al., 1993
Praxmarer, C. Hansel; Jordan, A.; Kraus, H.; Lindinger, W., Reactions of Kr2+ with Various Neutrals, Int.J. Mass Spectrom. Ion. Proc., 1993, 129, 121, https://doi.org/10.1016/0168-1176(93)87036-R . [all data]

Wadt, 1978
Wadt, W.R., The Electronic States of Ar2+, Kr2+, Xe2+. I. Potential Curves with and without Spin-Orbit Coupling, J. Chem. Phys., 1978, 68, 2, 402, https://doi.org/10.1063/1.435773 . [all data]

Radzig and Smirnov, 1985
Radzig, R.; Smirnov, B.M., Reference Data on Atoms in Molecules and Ions, Springer, Berlin, 1985. [all data]

Andersen, Muntean, et al., 2000
Andersen, A.; Muntean, F.; Walter, D.; Rue, C.; Armentrout, P.B., Collision-Induced Dissociation and Theoretical Studies of Mg+ Complexes with CO, CO2, NH3, CH4, CH3OH, and C6H6, J. Phys. Chem. A, 2000, 104, 4, 692, https://doi.org/10.1021/jp993031t . [all data]

Hiraoka and Yamabe, 1991
Hiraoka, K.; Yamabe, S., Cluster Ions: Gas Phase Stabilities of NO+(O2)n and NO+(CO2)n with n = 1 - 5, J. Chem. Phys., 1991, 95, 9, 6800, https://doi.org/10.1063/1.461518 . [all data]

Dunkin, Fehsenfeld, et al., 1971
Dunkin, D.B.; Fehsenfeld, F.C.; Schelmetekopf, A.L.; Ferguson, E.E., Three-Body Association Reactions of NO+ with O2, N2, and CO2, J. Chem. Phys., 1971, 54, 9, 3817, https://doi.org/10.1063/1.1675432 . [all data]

Peterson, Mark, et al., 1984
Peterson, K.I.; Mark, T.D.; Keesee, R.G.; Castleman, A.W., Thermochemical Properties of Gas - Phase Mixed Clusters: H2O/CO2 with Na+, J. Phys. Chem., 1984, 88, 13, 2880, https://doi.org/10.1021/j150657a042 . [all data]

Perry, Rowe, et al., 1980
Perry, R.A.; Rowe, B.R.; Viggiano, A.A.; Albritton, D.L.; Ferguson, E.E.; Fehsenfeld, F.C., Laboratory Measurements of Stratospheric Sodium Ion Measurements, Geophys. Res. Lett., 1980, 7, 9, 693, https://doi.org/10.1029/GL007i009p00693 . [all data]

Keller and Beyer, 1971, 2
Keller, G.E.; Beyer, R.A., CO2 and O2 Clustering to Sodium Ions, J. Geophys. Res., 1971, 74, 1, 289, https://doi.org/10.1029/JA076i001p00289 . [all data]

Adams and Bohme, 1970
Adams, N.G.; Bohme, D., Flowing Afterglow Studies of Formation and Reactions of Cluster Ions of O2+, O2-, and O-, J. Chem. Phys., 1970, 52, 6, 3133, https://doi.org/10.1063/1.1673449 . [all data]

Roehl, Snodgrass, et al., 1991
Roehl, C.M.; Snodgrass, J.T.; Deakyne, C.A.; Bowers, M.T., Photodissociation of CO3-.H2O: Observation of the O-.H2O + CO2 Product Channel, J. Chem. Phys., 1991, 94, 10, 6546, https://doi.org/10.1063/1.460281 . [all data]

Dotan, Davidson, et al., 1978
Dotan, I.; Davidson, J.A.; Fehsenfeld, F.C.; Albritton, D.L., Reactions of O2+.O2 with CO2, O3 and CH4 and O2+.O3 with H2O and CH4 and their Role in Stratospheric Ion Chemistry, J. Geophys. Res., 1978, 83, C8, 4036, https://doi.org/10.1029/JC083iC08p04036 . [all data]

Conway and Janik, 1970
Conway, D.C.; Janik, G.S., Determination of the Bond Energies for the Series O2 - O2+ through O2 - O10+, J. Chem. Phys., 1970, 53, 5, 1859, https://doi.org/10.1063/1.1674262 . [all data]

Rakshit and Warneck, 1981
Rakshit, A.B.; Warneck, P., Formation and Reactions of O2+.CO2, O2+.H2O and O2+(CO2)2 Ions, Int. J. Mass Spectrom Ion Phys., 1981, 40, 2, 135, https://doi.org/10.1016/0020-7381(81)80037-X . [all data]

Pack and Phelps, 1966
Pack, J.L.; Phelps, A.V., Electron Attachment and Detachment . II. Mixtures of O2 and CO2 and of O2 and H2O, J. Chem. Phys., 1966, 45, 11, 4316, https://doi.org/10.1063/1.1727491 . [all data]

Vestal and Mauclaire, 1977
Vestal, M.L.; Mauclaire, G.H., Photodissociaton of negative ions formed in CO2 and CO2/O2 Mixtures, J. Chem. Phys., 1977, 67, 3758. [all data]

Conway and Nesbit, 1968
Conway, D.C.; Nesbit, L.E., Stability of O4-, J. Chem. Phys., 1968, 48, 1, 509, https://doi.org/10.1063/1.1667956 . [all data]

Fehsenfeld and Ferguson, 1974
Fehsenfeld, F.C.; Ferguson, E.E., Laboratory studies of negative ion reactions with atmospheric trace constituents, J. Chem. Phys., 1974, 61, 3181. [all data]

Arshadi and Kebarle, 1970
Arshadi, M.; Kebarle, P., Hydration of OH- and O2- in the Gas Phase. Comparative Solvation of OH- by Water and the Hydrogen Halides. Effect of Acidity, J. Phys. Chem., 1970, 74, 7, 1483, https://doi.org/10.1021/j100702a015 . [all data]

Notes

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