Chromium ion (1+)

Reaction thermochemistry data

Go To: Top, Ion clustering data, References, Notes

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

Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

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.

Reactions 1 to 50

Chromium ion (1+) + chromium = (Chromium ion (1+) • chromium)

By formula: Cr+ + Cr = (Cr+ • Cr)

Quantity Value Units Method Reference Comment
ΔrH°37. ± 5.kcal/molICRCDHouriet and Vulpius, 1989gas phase; M
ΔrH°42.kcal/molEIHilpert and Ruthardt, 1987gas phase; from IP(Cr2) by EI and D(Cr2) by Knudsen cell, and IP(Cr); M
ΔrH°43. ± 5.kcal/molKC-MSHilpert and Ruthardt, 1987gas phase; data as evaluated by Houriet and Vulpius, 1989; M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
29.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • neon) + neon = (Chromium ion (1+) • 2neon)

By formula: (Cr+ • Ne) + Ne = (Cr+ • 2Ne)

Quantity Value Units Method Reference Comment
ΔrH°0.9 ± 0.1kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.90 kcal/mol, ΔrS(100 K) = 6.8 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°5.7cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.90 kcal/mol, ΔrS(100 K) = 6.8 cal/mol*K; M

Chromium ion (1+) + neon = (Chromium ion (1+) • neon)

By formula: Cr+ + Ne = (Cr+ • Ne)

Quantity Value Units Method Reference Comment
ΔrH°1.6 ± 0.1kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 1.38 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°14.6cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 1.38 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M

Chromium ion (1+) + Argon = (Chromium ion (1+) • Argon)

By formula: Cr+ + Ar = (Cr+ • Ar)

Quantity Value Units Method Reference Comment
ΔrH°6.9 ± 0.4kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 6.55 kcal/mol, ΔrS(100 K) = 14.4 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°15.8cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 6.55 kcal/mol, ΔrS(100 K) = 14.4 cal/mol*K; M

Chromium ion (1+) + helium = (Chromium ion (1+) • helium)

By formula: Cr+ + He = (Cr+ • He)

Quantity Value Units Method Reference Comment
ΔrH°1.3 ± 0.1kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.98 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°14.8cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.98 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M

Chromium ion (1+) + Benzene = (Chromium ion (1+) • Benzene)

By formula: Cr+ + C6H6 = (Cr+ • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°40.2kcal/molMIDLin, Chen, et al., 1997RCD
ΔrH°39.2 ± 3.3kcal/molRAKLin and Dunbar, 1997RCD
ΔrH°40.6 ± 2.4kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
40.6 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Chromium ion (1+) + Water = (Chromium ion (1+) • Water)

By formula: Cr+ + H2O = (Cr+ • H2O)

Quantity Value Units Method Reference Comment
ΔrH°29. ± 3.kcal/molCIDMagnera, David, et al., 1989gas phase; M
ΔrH°21.9kcal/molCIDMarinelli and Squires, 1989gas phase; M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
30.8 (+2.2,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • Benzene) + Benzene = (Chromium ion (1+) • 2Benzene)

By formula: (Cr+ • C6H6) + C6H6 = (Cr+ • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°50.7 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD
ΔrH°55.4 ± 4.3kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.3 (+4.4,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Chromium ion (1+) • Water) + Water = (Chromium ion (1+) • 2Water)

By formula: (Cr+ • H2O) + H2O = (Cr+ • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°29.5kcal/molCIDMarinelli and Squires, 1989gas phase; M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
33.9 (+1.4,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Ethylene = (Chromium ion (1+) • Ethylene)

By formula: Cr+ + C2H4 = (Cr+ • C2H4)

Quantity Value Units Method Reference Comment
ΔrH°22.9 ± 2.6kcal/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
29.9 (+4.5,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH>=, guided ion beam CID; M

(Chromium ion (1+) • 2Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 3Carbon monoxide)

By formula: (Cr+ • 2CO) + CO = (Cr+ • 3CO)

Quantity Value Units Method Reference Comment
ΔrH°12.9 ± 1.4kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12.9 (+1.4,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 3Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 4Carbon monoxide)

By formula: (Cr+ • 3CO) + CO = (Cr+ • 4CO)

Quantity Value Units Method Reference Comment
ΔrH°12.2 ± 1.8kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12.2 (+1.9,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 4Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 5Carbon monoxide)

By formula: (Cr+ • 4CO) + CO = (Cr+ • 5CO)

Quantity Value Units Method Reference Comment
ΔrH°14.8 ± 0.7kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
14.8 (+0.7,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 2Carbon monoxide)

By formula: (Cr+ • CO) + CO = (Cr+ • 2CO)

Quantity Value Units Method Reference Comment
ΔrH°22.6 ± 0.7kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
22.7 (+0.7,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Carbon monoxide = (Chromium ion (1+) • Carbon monoxide)

By formula: Cr+ + CO = (Cr+ • CO)

Quantity Value Units Method Reference Comment
ΔrH°21.4 ± 0.9kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
21.5 (+1.0,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • Ammonia) + Ammonia = (Chromium ion (1+) • 2Ammonia)

By formula: (Cr+ • H3N) + H3N = (Cr+ • 2H3N)

Quantity Value Units Method Reference Comment
ΔrH°42.8 ± 2.2kcal/molCIDTWalter and Armentrout, 1998RCD
ΔrH°40.8kcal/molCIDMarinelli and Squires, 1989gas phase; M

Chromium ion (1+) + Ammonia = (Chromium ion (1+) • Ammonia)

By formula: Cr+ + H3N = (Cr+ • H3N)

Quantity Value Units Method Reference Comment
ΔrH°43.5 ± 2.4kcal/molCIDTWalter and Armentrout, 1998RCD
ΔrH°37.4kcal/molCIDMarinelli and Squires, 1989gas phase; M

Chromium ion (1+) + Carbon monosulfide = (Chromium ion (1+) • Carbon monosulfide)

By formula: Cr+ + CS = (Cr+ • CS)

Quantity Value Units Method Reference Comment
ΔrH°38.9 ± 1.4kcal/molCIDTRue, Armentrout, et al., 2001RCD
ΔrH°37.8 ± 2.2kcal/molCIDTRodgers and Armentrout, 2000RCD

(Chromium ion (1+) • 3Water) + Water = (Chromium ion (1+) • 4Water)

By formula: (Cr+ • 3H2O) + H2O = (Cr+ • 4H2O)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12.2 (+1.7,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 2Water) + Water = (Chromium ion (1+) • 3Water)

By formula: (Cr+ • 2H2O) + H2O = (Cr+ • 3H2O)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12. (+12.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 5Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 6Carbon monoxide)

By formula: (Cr+ • 5CO) + CO = (Cr+ • 6CO)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
31.0 (+1.9,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Benzene, 1,2,3,5-tetrafluoro- = (Chromium ion (1+) • Benzene, 1,2,3,5-tetrafluoro-)

By formula: Cr+ + C6H2F4 = (Cr+ • C6H2F4)

Quantity Value Units Method Reference Comment
ΔrH°24.6kcal/molRAKRyzhov, 1999RCD
Quantity Value Units Method Reference Comment
ΔrS°1.2450×10+6cal/mol*KRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, 1,2,3,4-tetrafluoro- = (Chromium ion (1+) • Benzene, 1,2,3,4-tetrafluoro-)

By formula: Cr+ + C6H2F4 = (Cr+ • C6H2F4)

Quantity Value Units Method Reference Comment
ΔrH°25.4kcal/molRAKRyzhov, 1999RCD
Quantity Value Units Method Reference Comment
ΔrS°1.2350×10+6cal/mol*KRAKRyzhov, 1999RCD

(Chromium ion (1+) • 10chromium) + chromium = (Chromium ion (1+) • 11chromium)

By formula: (Cr+ • 10Cr) + Cr = (Cr+ • 11Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
61.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 11chromium) + chromium = (Chromium ion (1+) • 12chromium)

By formula: (Cr+ • 11Cr) + Cr = (Cr+ • 12Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
69.1 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 12chromium) + chromium = (Chromium ion (1+) • 13chromium)

By formula: (Cr+ • 12Cr) + Cr = (Cr+ • 13Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
70.3 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 13chromium) + chromium = (Chromium ion (1+) • 14chromium)

By formula: (Cr+ • 13Cr) + Cr = (Cr+ • 14Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
63.8 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 14chromium) + chromium = (Chromium ion (1+) • 15chromium)

By formula: (Cr+ • 14Cr) + Cr = (Cr+ • 15Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
67.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 15chromium) + chromium = (Chromium ion (1+) • 16chromium)

By formula: (Cr+ • 15Cr) + Cr = (Cr+ • 16Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
65.3 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 16chromium) + chromium = (Chromium ion (1+) • 17chromium)

By formula: (Cr+ • 16Cr) + Cr = (Cr+ • 17Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
49.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 17chromium) + chromium = (Chromium ion (1+) • 18chromium)

By formula: (Cr+ • 17Cr) + Cr = (Cr+ • 18Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 18chromium) + chromium = (Chromium ion (1+) • 19chromium)

By formula: (Cr+ • 18Cr) + Cr = (Cr+ • 19Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
69.1 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 19chromium) + chromium = (Chromium ion (1+) • 20chromium)

By formula: (Cr+ • 19Cr) + Cr = (Cr+ • 20Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
60.5 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 9chromium) + chromium = (Chromium ion (1+) • 10chromium)

By formula: (Cr+ • 9Cr) + Cr = (Cr+ • 10Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
59.3 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 2chromium) + chromium = (Chromium ion (1+) • 3chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
23.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 3chromium) + chromium = (Chromium ion (1+) • 4chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
51.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 4chromium) + chromium = (Chromium ion (1+) • 5chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
40.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 5chromium) + chromium = (Chromium ion (1+) • 6chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
58.8 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 6chromium) + chromium = (Chromium ion (1+) • 7chromium)

By formula: (Cr+ • 6Cr) + Cr = (Cr+ • 7Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
51.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 7chromium) + chromium = (Chromium ion (1+) • 8chromium)

By formula: (Cr+ • 7Cr) + Cr = (Cr+ • 8Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
59.5 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 8chromium) + chromium = (Chromium ion (1+) • 9chromium)

By formula: (Cr+ • 8Cr) + Cr = (Cr+ • 9Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • chromium) + chromium = (Chromium ion (1+) • 2chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
46.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Acetylene = (Chromium ion (1+) • Acetylene)

By formula: Cr+ + C2H2 = (Cr+ • C2H2)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
44.0 (+4.8,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Allene = (Chromium ion (1+) • Allene)

By formula: Cr+ + C3H4 = (Cr+ • C3H4)

Quantity Value Units Method Reference Comment
ΔrH°42.0 ± 2.0kcal/molCIDTFisher and Armentrout, 1992propyne or allene; RCD

(Chromium ion (1+) • 2Ammonia) + Ammonia = (Chromium ion (1+) • 3Ammonia)

By formula: (Cr+ • 2H3N) + H3N = (Cr+ • 3H3N)

Quantity Value Units Method Reference Comment
ΔrH°12.9 ± 1.4kcal/molCIDTWalter and Armentrout, 1998RCD

(Chromium ion (1+) • 3Ammonia) + Ammonia = (Chromium ion (1+) • 4Ammonia)

By formula: (Cr+ • 3H3N) + H3N = (Cr+ • 4H3N)

Quantity Value Units Method Reference Comment
ΔrH°7.2 ± 2.2kcal/molCIDTWalter and Armentrout, 1998RCD

(Chromium ion (1+) • p-Xylene) + p-Xylene = (Chromium ion (1+) • 2p-Xylene)

By formula: (Cr+ • C8H10) + C8H10 = (Cr+ • 2C8H10)

Quantity Value Units Method Reference Comment
ΔrH°50.7 ± 6.9kcal/molRAKLin and Dunbar, 1997RCD

(Chromium ion (1+) • Mesitylene) + Mesitylene = (Chromium ion (1+) • 2Mesitylene)

By formula: (Cr+ • C9H12) + C9H12 = (Cr+ • 2C9H12)

Quantity Value Units Method Reference Comment
ΔrH°50.7 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD

(Chromium ion (1+) • Toluene) + Toluene = (Chromium ion (1+) • 2Toluene)

By formula: (Cr+ • C7H8) + C7H8 = (Cr+ • 2C7H8)

Quantity Value Units Method Reference Comment
ΔrH°53.1 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD

(Chromium ion (1+) • Ethylene) + Ethylene = (Chromium ion (1+) • 2Ethylene)

By formula: (Cr+ • C2H4) + C2H4 = (Cr+ • 2C2H4)

Quantity Value Units Method Reference Comment
ΔrH°25.8 ± 2.6kcal/molCIDTSievers, Jarvis, et al., 1998RCD

Ion clustering data

Go To: Top, Reaction thermochemistry data, References, Notes

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

Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

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

Clustering reactions

Chromium ion (1+) + Argon = (Chromium ion (1+) • Argon)

By formula: Cr+ + Ar = (Cr+ • Ar)

Quantity Value Units Method Reference Comment
ΔrH°6.9 ± 0.4kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 6.55 kcal/mol, ΔrS(100 K) = 14.4 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°15.8cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 6.55 kcal/mol, ΔrS(100 K) = 14.4 cal/mol*K; M

Chromium ion (1+) + Methylene = (Chromium ion (1+) • Methylene)

By formula: Cr+ + CH2 = (Cr+ • CH2)

Quantity Value Units Method Reference Comment
ΔrH°53.8 ± 1.9kcal/molCIDTGeorgiadis and Armentrout, 1989RCD

Chromium ion (1+) + Methyl radical = (Chromium ion (1+) • Methyl radical)

By formula: Cr+ + CH3 = (Cr+ • CH3)

Quantity Value Units Method Reference Comment
ΔrH°30.2 ± 2.3kcal/molCIDTGeorgiadis and Armentrout, 1989RCD

Chromium ion (1+) + Carbon monoxide = (Chromium ion (1+) • Carbon monoxide)

By formula: Cr+ + CO = (Cr+ • CO)

Quantity Value Units Method Reference Comment
ΔrH°21.4 ± 0.9kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
21.5 (+1.0,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 2Carbon monoxide)

By formula: (Cr+ • CO) + CO = (Cr+ • 2CO)

Quantity Value Units Method Reference Comment
ΔrH°22.6 ± 0.7kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
22.7 (+0.7,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 2Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 3Carbon monoxide)

By formula: (Cr+ • 2CO) + CO = (Cr+ • 3CO)

Quantity Value Units Method Reference Comment
ΔrH°12.9 ± 1.4kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12.9 (+1.4,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 3Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 4Carbon monoxide)

By formula: (Cr+ • 3CO) + CO = (Cr+ • 4CO)

Quantity Value Units Method Reference Comment
ΔrH°12.2 ± 1.8kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12.2 (+1.9,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 4Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 5Carbon monoxide)

By formula: (Cr+ • 4CO) + CO = (Cr+ • 5CO)

Quantity Value Units Method Reference Comment
ΔrH°14.8 ± 0.7kcal/molCIDTKhan, Clemmer, et al., 1993RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
14.8 (+0.7,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 5Carbon monoxide) + Carbon monoxide = (Chromium ion (1+) • 6Carbon monoxide)

By formula: (Cr+ • 5CO) + CO = (Cr+ • 6CO)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
31.0 (+1.9,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Carbon monosulfide = (Chromium ion (1+) • Carbon monosulfide)

By formula: Cr+ + CS = (Cr+ • CS)

Quantity Value Units Method Reference Comment
ΔrH°38.9 ± 1.4kcal/molCIDTRue, Armentrout, et al., 2001RCD
ΔrH°37.8 ± 2.2kcal/molCIDTRodgers and Armentrout, 2000RCD

Chromium ion (1+) + Acetylene = (Chromium ion (1+) • Acetylene)

By formula: Cr+ + C2H2 = (Cr+ • C2H2)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
44.0 (+4.8,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Vinyl radical = (Chromium ion (1+) • Vinyl radical)

By formula: Cr+ + C2H3 = (Cr+ • C2H3)

Quantity Value Units Method Reference Comment
ΔrH°59.0 ± 2.3kcal/molCIDTFisher and Armentrout, 1992RCD

Chromium ion (1+) + Ethylene = (Chromium ion (1+) • Ethylene)

By formula: Cr+ + C2H4 = (Cr+ • C2H4)

Quantity Value Units Method Reference Comment
ΔrH°22.9 ± 2.6kcal/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
29.9 (+4.5,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH>=, guided ion beam CID; M

(Chromium ion (1+) • Ethylene) + Ethylene = (Chromium ion (1+) • 2Ethylene)

By formula: (Cr+ • C2H4) + C2H4 = (Cr+ • 2C2H4)

Quantity Value Units Method Reference Comment
ΔrH°25.8 ± 2.6kcal/molCIDTSievers, Jarvis, et al., 1998RCD

Chromium ion (1+) + CHCH3 = (Chromium ion (1+) • CHCH3)

By formula: Cr+ + C2H4 = (Cr+ • C2H4)

Quantity Value Units Method Reference Comment
ΔrH°52.0 ± 3.0kcal/molCIDTFisher and Armentrout, 1992RCD

Chromium ion (1+) + Ethyl radical = (Chromium ion (1+) • Ethyl radical)

By formula: Cr+ + C2H5 = (Cr+ • C2H5)

Quantity Value Units Method Reference Comment
ΔrH°35.0 ± 2.1kcal/molCIDTFisher and Armentrout, 1992RCD

Chromium ion (1+) + Acetone-D6 = (Chromium ion (1+) • Acetone-D6)

By formula: Cr+ + C3D6O = (Cr+ • C3D6O)

Quantity Value Units Method Reference Comment
ΔrH°37.3 ± 3.3kcal/molRAKLin, Chen, et al., 1997, 2RCD

Chromium ion (1+) + Allene = (Chromium ion (1+) • Allene)

By formula: Cr+ + C3H4 = (Cr+ • C3H4)

Quantity Value Units Method Reference Comment
ΔrH°42.0 ± 2.0kcal/molCIDTFisher and Armentrout, 1992propyne or allene; RCD

Chromium ion (1+) + Acetone = (Chromium ion (1+) • Acetone)

By formula: Cr+ + C3H6O = (Cr+ • C3H6O)

Quantity Value Units Method Reference Comment
ΔrH°41.8 ± 3.3kcal/molRAKLin, Chen, et al., 1997, 2RCD

Chromium ion (1+) + CHCH2CH3 = (Chromium ion (1+) • CHCH2CH3)

By formula: Cr+ + C3H6 = (Cr+ • C3H6)

Quantity Value Units Method Reference Comment
ΔrH°36.0 ± 3.0kcal/molCIDTFisher and Armentrout, 1992RCD

Chromium ion (1+) + C(CH3)2 = (Chromium ion (1+) • C(CH3)2)

By formula: Cr+ + C3H6 = (Cr+ • C3H6)

Quantity Value Units Method Reference Comment
ΔrH°39.0 ± 3.0kcal/molCIDTFisher and Armentrout, 1992RCD

Chromium ion (1+) + Isopropyl radical = (Chromium ion (1+) • Isopropyl radical)

By formula: Cr+ + C3H7 = (Cr+ • C3H7)

Quantity Value Units Method Reference Comment
ΔrH°28.5 ± 1.3kcal/molCIDTFisher and Armentrout, 1992RCD

Chromium ion (1+) + n-Propyl radical = (Chromium ion (1+) • n-Propyl radical)

By formula: Cr+ + C3H7 = (Cr+ • C3H7)

Quantity Value Units Method Reference Comment
ΔrH°32.1 ± 1.4kcal/molCIDTFisher and Armentrout, 1992RCD

Chromium ion (1+) + 1,3-Diazine = (Chromium ion (1+) • 1,3-Diazine)

By formula: Cr+ + C4H4N2 = (Cr+ • C4H4N2)

Quantity Value Units Method Reference Comment
ΔrH°42.4 ± 1.5kcal/molCIDTAmunugama and Rodgers, 2001RCD

Chromium ion (1+) + Pyrrole = (Chromium ion (1+) • Pyrrole)

By formula: Cr+ + C4H5N = (Cr+ • C4H5N)

Quantity Value Units Method Reference Comment
ΔrH°42.5kcal/molRAKGapeev and Yang, 2000RCD

(Chromium ion (1+) • Pyrrole) + Pyrrole = (Chromium ion (1+) • 2Pyrrole)

By formula: (Cr+ • C4H5N) + C4H5N = (Cr+ • 2C4H5N)

Quantity Value Units Method Reference Comment
ΔrH°34.9kcal/molRAKGapeev and Yang, 2000RCD

Chromium ion (1+) + Pyridine = (Chromium ion (1+) • Pyridine)

By formula: Cr+ + C5H5N = (Cr+ • C5H5N)

Quantity Value Units Method Reference Comment
ΔrH°47.1 ± 2.8kcal/molCIDTRodgers, Stanley, et al., 2000RCD

Chromium ion (1+) + Adenine = (Chromium ion (1+) • Adenine)

By formula: Cr+ + C5H5N5 = (Cr+ • C5H5N5)

Quantity Value Units Method Reference Comment
ΔrH°55.1 ± 1.8kcal/molCIDTRodgers and Armentrout, 2002RCD

Chromium ion (1+) + Benzene, hexafluoro- = (Chromium ion (1+) • Benzene, hexafluoro-)

By formula: Cr+ + C6F6 = (Cr+ • C6F6)

Quantity Value Units Method Reference Comment
ΔrH°18.9kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, pentafluoro- = (Chromium ion (1+) • Benzene, pentafluoro-)

By formula: Cr+ + C6HF5 = (Cr+ • C6HF5)

Quantity Value Units Method Reference Comment
ΔrH°23.7kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, 1,2,4,5-tetrafluoro- = (Chromium ion (1+) • Benzene, 1,2,4,5-tetrafluoro-)

By formula: Cr+ + C6H2F4 = (Cr+ • C6H2F4)

Quantity Value Units Method Reference Comment
ΔrH°26.6kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, 1,2,3,4-tetrafluoro- = (Chromium ion (1+) • Benzene, 1,2,3,4-tetrafluoro-)

By formula: Cr+ + C6H2F4 = (Cr+ • C6H2F4)

Quantity Value Units Method Reference Comment
ΔrH°25.4kcal/molRAKRyzhov, 1999RCD
Quantity Value Units Method Reference Comment
ΔrS°1.2350×10+6cal/mol*KRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, 1,2,3,5-tetrafluoro- = (Chromium ion (1+) • Benzene, 1,2,3,5-tetrafluoro-)

By formula: Cr+ + C6H2F4 = (Cr+ • C6H2F4)

Quantity Value Units Method Reference Comment
ΔrH°24.6kcal/molRAKRyzhov, 1999RCD
Quantity Value Units Method Reference Comment
ΔrS°1.2450×10+6cal/mol*KRAKRyzhov, 1999RCD

Chromium ion (1+) + 1,2,4-Trifluorobenzene = (Chromium ion (1+) • 1,2,4-Trifluorobenzene)

By formula: Cr+ + C6H3F3 = (Cr+ • C6H3F3)

Quantity Value Units Method Reference Comment
ΔrH°29.9kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + 1,3,5-Trifluorobenzene = (Chromium ion (1+) • 1,3,5-Trifluorobenzene)

By formula: Cr+ + C6H3F3 = (Cr+ • C6H3F3)

Quantity Value Units Method Reference Comment
ΔrH°26.3kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + 1,2,3-Trifluorobenzene = (Chromium ion (1+) • 1,2,3-Trifluorobenzene)

By formula: Cr+ + C6H3F3 = (Cr+ • C6H3F3)

Quantity Value Units Method Reference Comment
ΔrH°29.3kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, 1,2-difluoro- = (Chromium ion (1+) • Benzene, 1,2-difluoro-)

By formula: Cr+ + C6H4F2 = (Cr+ • C6H4F2)

Quantity Value Units Method Reference Comment
ΔrH°32.9kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, 1,3-difluoro- = (Chromium ion (1+) • Benzene, 1,3-difluoro-)

By formula: Cr+ + C6H4F2 = (Cr+ • C6H4F2)

Quantity Value Units Method Reference Comment
ΔrH°32.0kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, 1,4-difluoro- = (Chromium ion (1+) • Benzene, 1,4-difluoro-)

By formula: Cr+ + C6H4F2 = (Cr+ • C6H4F2)

Quantity Value Units Method Reference Comment
ΔrH°29.0kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene, fluoro- = (Chromium ion (1+) • Benzene, fluoro-)

By formula: Cr+ + C6H5F = (Cr+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°39.2kcal/molRAKRyzhov, 1999RCD

Chromium ion (1+) + Benzene = (Chromium ion (1+) • Benzene)

By formula: Cr+ + C6H6 = (Cr+ • C6H6)

Quantity Value Units Method Reference Comment
ΔrH°40.2kcal/molMIDLin, Chen, et al., 1997RCD
ΔrH°39.2 ± 3.3kcal/molRAKLin and Dunbar, 1997RCD
ΔrH°40.6 ± 2.4kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
40.6 (+2.3,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

(Chromium ion (1+) • Benzene) + Benzene = (Chromium ion (1+) • 2Benzene)

By formula: (Cr+ • C6H6) + C6H6 = (Cr+ • 2C6H6)

Quantity Value Units Method Reference Comment
ΔrH°50.7 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD
ΔrH°55.4 ± 4.3kcal/molCIDTMeyer, Khan, et al., 1995RCD

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.3 (+4.4,-0.) CIDMeyer, Khan, et al., 1995gas phase; guided ion beam CID; M

Chromium ion (1+) + Toluene = (Chromium ion (1+) • Toluene)

By formula: Cr+ + C7H8 = (Cr+ • C7H8)

Quantity Value Units Method Reference Comment
ΔrH°42.1 ± 3.3kcal/molRAKLin and Dunbar, 1997RCD

(Chromium ion (1+) • Toluene) + Toluene = (Chromium ion (1+) • 2Toluene)

By formula: (Cr+ • C7H8) + C7H8 = (Cr+ • 2C7H8)

Quantity Value Units Method Reference Comment
ΔrH°53.1 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD

Chromium ion (1+) + p-Xylene = (Chromium ion (1+) • p-Xylene)

By formula: Cr+ + C8H10 = (Cr+ • C8H10)

Quantity Value Units Method Reference Comment
ΔrH°43.0 ± 4.5kcal/molRAKLin and Dunbar, 1997RCD

(Chromium ion (1+) • p-Xylene) + p-Xylene = (Chromium ion (1+) • 2p-Xylene)

By formula: (Cr+ • C8H10) + C8H10 = (Cr+ • 2C8H10)

Quantity Value Units Method Reference Comment
ΔrH°50.7 ± 6.9kcal/molRAKLin and Dunbar, 1997RCD

Chromium ion (1+) + Mesitylene = (Chromium ion (1+) • Mesitylene)

By formula: Cr+ + C9H12 = (Cr+ • C9H12)

Quantity Value Units Method Reference Comment
ΔrH°46.1 ± 6.9kcal/molRAKLin and Dunbar, 1997RCD

(Chromium ion (1+) • Mesitylene) + Mesitylene = (Chromium ion (1+) • 2Mesitylene)

By formula: (Cr+ • C9H12) + C9H12 = (Cr+ • 2C9H12)

Quantity Value Units Method Reference Comment
ΔrH°50.7 ± 9.1kcal/molRAKLin and Dunbar, 1997RCD

Chromium ion (1+) + chromium = (Chromium ion (1+) • chromium)

By formula: Cr+ + Cr = (Cr+ • Cr)

Quantity Value Units Method Reference Comment
ΔrH°37. ± 5.kcal/molICRCDHouriet and Vulpius, 1989gas phase; M
ΔrH°42.kcal/molEIHilpert and Ruthardt, 1987gas phase; from IP(Cr2) by EI and D(Cr2) by Knudsen cell, and IP(Cr); M
ΔrH°43. ± 5.kcal/molKC-MSHilpert and Ruthardt, 1987gas phase; data as evaluated by Houriet and Vulpius, 1989; M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
29.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • chromium) + chromium = (Chromium ion (1+) • 2chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
46.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 2chromium) + chromium = (Chromium ion (1+) • 3chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
23.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 3chromium) + chromium = (Chromium ion (1+) • 4chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
51.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 4chromium) + chromium = (Chromium ion (1+) • 5chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
40.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 5chromium) + chromium = (Chromium ion (1+) • 6chromium)

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

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
58.8 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 6chromium) + chromium = (Chromium ion (1+) • 7chromium)

By formula: (Cr+ • 6Cr) + Cr = (Cr+ • 7Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
51.9 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 7chromium) + chromium = (Chromium ion (1+) • 8chromium)

By formula: (Cr+ • 7Cr) + Cr = (Cr+ • 8Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
59.5 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 8chromium) + chromium = (Chromium ion (1+) • 9chromium)

By formula: (Cr+ • 8Cr) + Cr = (Cr+ • 9Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 9chromium) + chromium = (Chromium ion (1+) • 10chromium)

By formula: (Cr+ • 9Cr) + Cr = (Cr+ • 10Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
59.3 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 10chromium) + chromium = (Chromium ion (1+) • 11chromium)

By formula: (Cr+ • 10Cr) + Cr = (Cr+ • 11Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
61.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 11chromium) + chromium = (Chromium ion (1+) • 12chromium)

By formula: (Cr+ • 11Cr) + Cr = (Cr+ • 12Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
69.1 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 12chromium) + chromium = (Chromium ion (1+) • 13chromium)

By formula: (Cr+ • 12Cr) + Cr = (Cr+ • 13Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
70.3 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 13chromium) + chromium = (Chromium ion (1+) • 14chromium)

By formula: (Cr+ • 13Cr) + Cr = (Cr+ • 14Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
63.8 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 14chromium) + chromium = (Chromium ion (1+) • 15chromium)

By formula: (Cr+ • 14Cr) + Cr = (Cr+ • 15Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
67.4 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 15chromium) + chromium = (Chromium ion (1+) • 16chromium)

By formula: (Cr+ • 15Cr) + Cr = (Cr+ • 16Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
65.3 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 16chromium) + chromium = (Chromium ion (1+) • 17chromium)

By formula: (Cr+ • 16Cr) + Cr = (Cr+ • 17Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
49.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 17chromium) + chromium = (Chromium ion (1+) • 18chromium)

By formula: (Cr+ • 17Cr) + Cr = (Cr+ • 18Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
55.7 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 18chromium) + chromium = (Chromium ion (1+) • 19chromium)

By formula: (Cr+ • 18Cr) + Cr = (Cr+ • 19Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
69.1 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 19chromium) + chromium = (Chromium ion (1+) • 20chromium)

By formula: (Cr+ • 19Cr) + Cr = (Cr+ • 20Cr)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
60.5 CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Water = (Chromium ion (1+) • Water)

By formula: Cr+ + H2O = (Cr+ • H2O)

Quantity Value Units Method Reference Comment
ΔrH°29. ± 3.kcal/molCIDMagnera, David, et al., 1989gas phase; M
ΔrH°21.9kcal/molCIDMarinelli and Squires, 1989gas phase; M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
30.8 (+2.2,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • Water) + Water = (Chromium ion (1+) • 2Water)

By formula: (Cr+ • H2O) + H2O = (Cr+ • 2H2O)

Quantity Value Units Method Reference Comment
ΔrH°29.5kcal/molCIDMarinelli and Squires, 1989gas phase; M

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
33.9 (+1.4,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 2Water) + Water = (Chromium ion (1+) • 3Water)

By formula: (Cr+ • 2H2O) + H2O = (Cr+ • 3H2O)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12. (+12.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

(Chromium ion (1+) • 3Water) + Water = (Chromium ion (1+) • 4Water)

By formula: (Cr+ • 3H2O) + H2O = (Cr+ • 4H2O)

Enthalpy of reaction

ΔrH° (kcal/mol) T (K) Method Reference Comment
12.2 (+1.7,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Chromium ion (1+) + Ammonia = (Chromium ion (1+) • Ammonia)

By formula: Cr+ + H3N = (Cr+ • H3N)

Quantity Value Units Method Reference Comment
ΔrH°43.5 ± 2.4kcal/molCIDTWalter and Armentrout, 1998RCD
ΔrH°37.4kcal/molCIDMarinelli and Squires, 1989gas phase; M

(Chromium ion (1+) • Ammonia) + Ammonia = (Chromium ion (1+) • 2Ammonia)

By formula: (Cr+ • H3N) + H3N = (Cr+ • 2H3N)

Quantity Value Units Method Reference Comment
ΔrH°42.8 ± 2.2kcal/molCIDTWalter and Armentrout, 1998RCD
ΔrH°40.8kcal/molCIDMarinelli and Squires, 1989gas phase; M

(Chromium ion (1+) • 2Ammonia) + Ammonia = (Chromium ion (1+) • 3Ammonia)

By formula: (Cr+ • 2H3N) + H3N = (Cr+ • 3H3N)

Quantity Value Units Method Reference Comment
ΔrH°12.9 ± 1.4kcal/molCIDTWalter and Armentrout, 1998RCD

(Chromium ion (1+) • 3Ammonia) + Ammonia = (Chromium ion (1+) • 4Ammonia)

By formula: (Cr+ • 3H3N) + H3N = (Cr+ • 4H3N)

Quantity Value Units Method Reference Comment
ΔrH°7.2 ± 2.2kcal/molCIDTWalter and Armentrout, 1998RCD

Chromium ion (1+) + helium = (Chromium ion (1+) • helium)

By formula: Cr+ + He = (Cr+ • He)

Quantity Value Units Method Reference Comment
ΔrH°1.3 ± 0.1kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.98 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°14.8cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.98 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M

Chromium ion (1+) + neon = (Chromium ion (1+) • neon)

By formula: Cr+ + Ne = (Cr+ • Ne)

Quantity Value Units Method Reference Comment
ΔrH°1.6 ± 0.1kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 1.38 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°14.6cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 1.38 kcal/mol, ΔrS(100 K) = 13.3 cal/mol*K; M

(Chromium ion (1+) • neon) + neon = (Chromium ion (1+) • 2neon)

By formula: (Cr+ • Ne) + Ne = (Cr+ • 2Ne)

Quantity Value Units Method Reference Comment
ΔrH°0.9 ± 0.1kcal/molSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.90 kcal/mol, ΔrS(100 K) = 6.8 cal/mol*K; M
Quantity Value Units Method Reference Comment
ΔrS°5.7cal/mol*KSIDTKemper, Hsu, et al., 1991gas phase; ΔrH(0 K) = 0.90 kcal/mol, ΔrS(100 K) = 6.8 cal/mol*K; M

References

Go To: Top, Reaction thermochemistry data, Ion clustering data, Notes

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

Houriet and Vulpius, 1989
Houriet, R.; Vulpius, T., Formation of Metal Cluster Ions by Gas - Phase Ion - Molecule Reactions: the Bond Energies of Cr2+ and Mn2+, Chem. Phys. Lett., 1989, 154, 5, 454, https://doi.org/10.1016/0009-2614(89)87130-1 . [all data]

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Lin and Dunbar, 1997
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Meyer, Khan, et al., 1995
Meyer, F.; Khan, F.A.; Armentrout, P.B., Thermochemistry of Transition Metal Benzene complexes: Binding energies of M(C6H6)x+ (x = 1,2) for M = Ti to Cu, J. Am. Chem. Soc., 1995, 117, 38, 9740, https://doi.org/10.1021/ja00143a018 . [all data]

Magnera, David, et al., 1989
Magnera, T.F.; David, D.E.; Michl, J., Gas -Phase Water and Hydroxyl Binding Energies for Monopoisitive First - Row Transition - Metal Ions, J. Am. Chem. Soc., 1989, 111, 11, 4101, https://doi.org/10.1021/ja00193a051 . [all data]

Marinelli and Squires, 1989
Marinelli, P.J.; Squires, R.R., Sequential Solvation of Atomic Transition Metal Ions: The Second Solvent Molecule Can Bind More Strongly than the First, J. Am. Chem. Soc., 1989, 111, 11, 4101, https://doi.org/10.1021/ja00193a052 . [all data]

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Sievers, M.R.; Jarvis, L.M.; Armentrout, P.B., Transition Metal Ethene Bonds: Thermochemistry of M+(C2H4)n (M=Ti-Cu, n=1 and 2) Complexes, J. Am. Chem. Soc., 1998, 120, 8, 1891, https://doi.org/10.1021/ja973834z . [all data]

Khan, Clemmer, et al., 1993
Khan, F.A.; Clemmer, D.E.; Schultz, R.H.; Armentrout, P.B., Sequential Bond Energies of Cr(CO)x+, x=1-6, J. Phys. Chem., 1993, 97, 30, 7978, https://doi.org/10.1021/j100132a029 . [all data]

Walter and Armentrout, 1998
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Amunugama and Rodgers, 2001
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Gapeev and Yang, 2000
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Notes

Go To: Top, Reaction thermochemistry data, Ion clustering data, References