Calcium monohydride
- Formula: CaH
- Molecular weight: 41.086
- IUPAC Standard InChI: InChI=1S/Ca.H
- IUPAC Standard InChIKey: PKHCKQOIOXDRJH-UHFFFAOYSA-N
- CAS Registry Number: 14452-75-6
- Chemical structure:
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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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.930 ± 0.050 | PD | Rackwitz, Feldman, et al., 1977 | B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 5.86 ± 0.09 | S | Kaving and Lindgren, 1974 | LLK |
De-protonation reactions
Ca- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1476.1 ± 3.9 | kJ/mol | D-EA | Petrunin, Andersen, et al., 1996 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1452. ± 4.2 | kJ/mol | H-TS | Petrunin, Andersen, et al., 1996 | gas phase; B |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rackwitz, Feldman, et al., 1977
Rackwitz, R.; Feldman, D.; Kaiser, H.J.; Heincke, E.,
Photodetachment bei einigen zweiatomigen negativen hydridionen: BeH-, MgH-, CaH-, ZnH-, PH-, AsH-,
Z. Naturforsch. A:, 1977, 32, 594. [all data]
Kaving and Lindgren, 1974
Kaving, B.; Lindgren, B.,
Ultraviolet absorption spectrum of the CaH molecule. II. The structure of the d-complex around 2850 A,
Phys. Scr., 1974, 10, 81. [all data]
Petrunin, Andersen, et al., 1996
Petrunin, V.V.; Andersen, H.H.; Balling, P.; Andersen, T.,
Structural Properties of the Negative Calcium Ion: Binding Energies and Fine-structure Splitting,
Phys. Rev. Lett., 1996, 76, 5, 744, https://doi.org/10.1103/PhysRevLett.76.744
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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