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Borane


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 as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to BH3+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
0.038 ± 0.015LPESWickham-Jones, Moran, et al., 1989B

Ionization energy determinations

IE (eV) Method Reference Comment
12.026 ± 0.024PIRuscic, Mayhew, et al., 1988LL
14. ± 2.EIHerstad, Pressley, et al., 1970RDSH
11.5 ± 0.5EISteck, Pressley, et al., 1969RDSH
12.2 ± 0.1EIGanguli and McGee, 1969RDSH
12.3 ± 0.1EIWilson and McGee, 1967RDSH
11.EIBaylis, Pressley, et al., 1966RDSH
11.4 ± 0.2EIFehlner and Koski, 1964RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
BH+<=13.372 ± 0.015H2PIRuscic, Mayhew, et al., 1988LL
BH+13.7 ± 1.0H2?EISteck, Pressley, et al., 1969RDSH
BH+13.66 ± 0.02H2?EIWilson and McGee, 1967RDSH
BH2+<=12.819 ± 0.020HPIRuscic, Mayhew, et al., 1988LL
BH2+12.3 ± 0.5HEISteck, Pressley, et al., 1969RDSH
BH2+12.95HEIWilson and McGee, 1967RDSH

De-protonation reactions

H2B- + Hydrogen cation = Borane

By formula: H2B- + H+ = H3B

Quantity Value Units Method Reference Comment
Deltar411.80kcal/molN/ABartmess and Hinde, 2005gas phase; 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.

Wickham-Jones, Moran, et al., 1989
Wickham-Jones, C.T.; Moran, S.; Ellison, G.B., Photoelectron Spectroscopy of BH3-, J. Chem. Phys., 1989, 90, 2, 795, https://doi.org/10.1063/1.456104 . [all data]

Ruscic, Mayhew, et al., 1988
Ruscic, B.; Mayhew, C.A.; Berkowitz, J., Photoionization studies of (BH3)n(n=1,2), J. Chem. Phys., 1988, 88, 5580. [all data]

Herstad, Pressley, et al., 1970
Herstad, O.; Pressley, G.A., Jr.; Stafford, F.E., Mass spectrometric investigation of the fragmentation pattern and the pyrolysis of borane carbonyl, J. Phys. Chem., 1970, 74, 874. [all data]

Steck, Pressley, et al., 1969
Steck, S.J.; Pressley, G.A., Jr.; Stafford, F.E., Mass spectrometric investigation of the high-temperature reaction of hydrogen with boron carbide, J. Phys. Chem., 1969, 73, 1000. [all data]

Ganguli and McGee, 1969
Ganguli, P.S.; McGee, H.A., Jr., Molecular energetics of borane carbonyl and the symmetric dissociation energy of diborane, J. Chem. Phys., 1969, 50, 4658. [all data]

Wilson and McGee, 1967
Wilson, J.H.; McGee, H.A., Jr., Mass-spectrometric studies of the synthesis, energetics, and cryogenic stability of the lower boron hydrides, J. Chem. Phys., 1967, 46, 1444. [all data]

Baylis, Pressley, et al., 1966
Baylis, A.B.; Pressley, G.A., Jr.; Stafford, F.E., Mass spectrometric investigation of the pyrolysis of boranes. IV. Diborane, J. Am. Chem. Soc., 1966, 88, 2428. [all data]

Fehlner and Koski, 1964
Fehlner, T.P.; Koski, W.S., Direct detection of the borane molecule and the boryl radical by mass spectrometry, J. Am. Chem. Soc., 1964, 86, 2733. [all data]

Bartmess and Hinde, 2005
Bartmess, J.E.; Hinde, R.J., The Gas Phase Acidities of the Elemental Hydrides are Functions of Bond Lengths and Electronegativity, Can. J. Chem., 2005, 83, 11, 2005-2012, https://doi.org/10.1139/v05-218 . [all data]


Notes

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