Carbon anion


Gas phase thermochemistry data

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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

Quantity Value Units Method Reference Comment
Δfgas119.3 ± 3.8kcal/molR-EAErvin, Gronert, et al., 1990B
Δfgas<197.5 ± 4.6kcal/molEIAECollin and Locht, 1970From ketene; B
Quantity Value Units Method Reference Comment
gas,1 bar46.989cal/mol*KReviewChase, 1998Data last reviewed in December, 1969

Reaction thermochemistry data

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

Data compiled by: John E. Bartmess

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

Individual Reactions

Carbon anion + Hydrogen cation = C2H

By formula: C2- + H+ = C2H

Quantity Value Units Method Reference Comment
Δr>349.0 ± 3.6kcal/molD-EAArnold, Bradforth, et al., 1991gas phase
Δr<375.8 ± 2.3kcal/molG+TSSchiff and Bohme, 1975gas phase; No reaction with acetylene
Quantity Value Units Method Reference Comment
Δr>341.7 ± 3.8kcal/molH-TSArnold, Bradforth, et al., 1991gas phase
Δr<368.5 ± 2.0kcal/molIMRBSchiff and Bohme, 1975gas phase; No reaction with acetylene

Gas phase ion energetics data

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

Data compiled by: John E. Bartmess

Protonation reactions

Carbon anion + Hydrogen cation = C2H

By formula: C2- + H+ = C2H

Quantity Value Units Method Reference Comment
Δr>349.0 ± 3.6kcal/molD-EAArnold, Bradforth, et al., 1991gas phase
Δr<375.8 ± 2.3kcal/molG+TSSchiff and Bohme, 1975gas phase; No reaction with acetylene
Quantity Value Units Method Reference Comment
Δr>341.7 ± 3.8kcal/molH-TSArnold, Bradforth, et al., 1991gas phase
Δr<368.5 ± 2.0kcal/molIMRBSchiff and Bohme, 1975gas phase; No reaction with acetylene

References

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

Ervin, Gronert, et al., 1990
Ervin, K.M.; Gronert, S.; Barlow, S.E.; Gilles, M.K.; Harrison, A.G.; Bierbaum, V.M.; DePuy, C.H.; Lin, W.C., Bonds Strengths of Ethylene and Acetylene, J. Am. Chem. Soc., 1990, 112, 15, 5750, https://doi.org/10.1021/ja00171a013 . [all data]

Collin and Locht, 1970
Collin, J.E.; Locht, R., Positive and negative ion formation in ketene by electron impact, Intern. J. Mass Spectrom. Ion Phys., 1970, 3, 465. [all data]

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

Arnold, Bradforth, et al., 1991
Arnold, D.W.; Bradforth, S.E.; Kitsopoulos, T.N.; Neumark, D.M., Vibrationally Resolved Spectra of C2-C11 by Anion Photoelectron Spectroscopy, J. Chem. Phys., 1991, 95, 12, 8753, https://doi.org/10.1063/1.461211 . [all data]

Schiff and Bohme, 1975
Schiff, H.I.; Bohme, D.K., Flowing afterglow studies at York University, Int. J. Mass Spectrom. Ion Phys., 1975, 16, 167. [all data]


Notes

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