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2,4-Dicarbaheptaborane(7)


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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Quantity Value Units Method Reference Comment
Proton affinity (review)697.4kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity665.0kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.54PEFehlner, 1975LLK
10.6PEUlman and Fehlner, 1978Vertical value; LLK

De-protonation reactions

C2H6B5- + Hydrogen cation = C2H7B5

By formula: C2H6B5- + H+ = C2H7B5

Quantity Value Units Method Reference Comment
Deltar<1891.2kJ/molEIAEOnak, Howard, et al., 1973gas phase; From closo-2,4-C2B5H7. Computations indicate dHacid ca. 371 kcal/mol; B

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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Fehlner, 1975
Fehlner, T.P., Photoelectron spectroscopy of closo-carboranes. Observation of exo-polyhedral molecular orbitals, Inorg. Chem., 1975, 14, 934. [all data]

Ulman and Fehlner, 1978
Ulman, J.A.; Fehlner, T.P., Ultraviolet photoelectron spectroscopy of boranes and carboranes. Five-, six-, and seven- atom frameworks, J. Am. Chem. Soc., 1978, 100, 449. [all data]

Onak, Howard, et al., 1973
Onak, T.; Howard, J.; Brown, C., Negative Ion Mass Spectrometry of closo-Carboranes, J. Chem. Soc. Dalton 76, 1973. [all data]


Notes

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