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

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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