Beryllium monohydride
- Formula: BeH
- Molecular weight: 10.02012
- IUPAC Standard InChI: InChI=1S/Be.H
- IUPAC Standard InChIKey: AYBCUKQQDUJLQN-UHFFFAOYSA-N
- CAS Registry Number: 13597-97-2
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 76.769 | kcal/mol | Review | Chase, 1998 | Data last reviewed in March, 1963 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 42.263 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1963 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 1200. | 1200. to 6000. |
|---|---|---|
| A | 5.995830 | 8.507180 |
| B | 1.885110 | 0.374768 |
| C | 0.942933 | -0.044900 |
| D | -0.741511 | 0.003018 |
| E | 0.032494 | -0.780834 |
| F | 74.99890 | 72.57729 |
| G | 49.10361 | 50.45751 |
| H | 76.76800 | 76.76800 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in March, 1963 | Data last reviewed in March, 1963 |
Gas phase ion energetics 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.70 ± 0.10 | PD | Rackwitz, Feldman, et al., 1977 | ΔHf(BeH2){ Chase Jr., Davies, et al., 1985} is 1959 SWAG. G3(MP2)calcn(JEB): ΔHf=44.5kcal, BDE=92.1, ΔHacid=389.7; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.21 | EVAL | Huber and Herzberg, 1979 | LLK |
| 8.21 ± 0.05 | S | Colin and De Greef, 1975 | LLK |
| 8.20 ± 0.06 | S | Colin, DeGreef, et al., 1974 | LLK |
References
Go To: Top, Gas phase thermochemistry data, 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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
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]
Chase Jr., Davies, et al., 1985
Chase Jr.; Davies, C.A.; Downey Jr.; Frurip, D.J.; McDonald, R.A.; Syverud, A.N.,
JANAF Thermochemical Tables (Third Edition),
J. Phys. Chem. Ref. Data, Suppl. 1, 1985, 14. [all data]
Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G.,
Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules,, Van Nostrand Reinhold Co., 1979, ,1. [all data]
Colin and De Greef, 1975
Colin, R.; De Greef, D.,
The absorption spectrum of the BeH and BeD molecules in the vacuum ultraviolet,
Can. J. Phys., 1975, 53, 2142. [all data]
Colin, DeGreef, et al., 1974
Colin, R.; DeGreef, D.; Goethals, P.; Verhaegen, G.,
The ionization potential of the BeH molecule,
Chem. Phys. Lett., 1974, 25, 70. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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