BH4 anion
- Formula: BH4-
- Molecular weight: 14.843
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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 by: John E. Bartmess
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -18.47 | kcal/mol | Ther | Workman and Squires, 1988 | From Endo threshold for hydride transfer to CO2 |
| ΔfH°gas | -18.7 ± 2.0 | kcal/mol | Latt | Krivtsov, Titova, et al., 1977 | value altered from reference due to conversion from electron convention to ion convention |
| ΔfH°gas | -23.0 ± 5.0 | kcal/mol | Latt | Altschuller, 1955 | |
| ΔfH°gas | <47.0 ± 6.6 | kcal/mol | IMRB | Dunbar, 1968 | HO- + B2H6 ->. |
Reaction thermochemistry data
Go To: Top, Gas phase 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 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
H4B- + = (H4B- •
)
By formula: H4B- + H3B = (H4B- • H3B)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 39.4 ± 1.2 | kcal/mol | CIDT | Workman and Squires, 1988 | gas phase; CID threshold in Ar target |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Workman and Squires, 1988
Workman, D.B.; Squires, R.R.,
Hydride Binding Energies of Boranes,
Inorg. Chem., 1988, 27, 11, 1846, https://doi.org/10.1021/ic00284a003
. [all data]
Krivtsov, Titova, et al., 1977
Krivtsov, N.V.; Titova, K.V.; Rosolovskii, V.Ya.,
Thermochemical study of complex borates,
Russ. J. Inorg. Chem., 1977, 22, 374. [all data]
Altschuller, 1955
Altschuller, A.P.,
Lattice Energies and Related Thermodynamic Properties of the Alkali Metal Borohydrides and of the Borohydride Ion,
J. Am. Chem. Soc., 1955, 77, 21, 5455, https://doi.org/10.1021/ja01626a001
. [all data]
Dunbar, 1968
Dunbar, R.C.,
Ion-Molecule Chemistry of Diborane by Ion Cyclotron Resonance,
J. Am. Chem. Soc., 1968, 90, 21, 5676, https://doi.org/10.1021/ja01023a005
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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