Beryllium hydride
- Formula: BeH2
- Molecular weight: 11.02806
- IUPAC Standard InChI: InChI=1S/Be.2H
- IUPAC Standard InChIKey: RWASOQSEFLDYLC-UHFFFAOYSA-N
- CAS Registry Number: 7787-52-2
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, Vibrational and/or electronic energy levels, 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
HBe- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1630. ± 13. | kJ/mol | D-EA | Rackwitz, Feldman, et al., 1977 | gas phase; ΔHf(BeH2){ Chase Jr., Davies, et al., 1985} is 1959 SWAG. G3(MP2)calcn(JEB): ΔHf=44.5kcal, BDE=92.1, ΔHacid=389.7 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1595. ± 13. | kJ/mol | H-TS | Rackwitz, Feldman, et al., 1977 | gas phase; ΔHf(BeH2){ Chase Jr., Davies, et al., 1985} is 1959 SWAG. G3(MP2)calcn(JEB): ΔHf=44.5kcal, BDE=92.1, ΔHacid=389.7 |
Vibrational and/or electronic energy levels
Go To: Top, Reaction 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: Marilyn E. Jacox
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| Πu | 2 | Bend | 708.5 | Ne | IR | Wang and Andrews, 2005 | |
| 2 | Bend | 697.9 | Ar | IR | Tague and Andrews, 1993 | ||
| 2 | Bend | 706.3 | H2 | IR | Wang and Andrews, 2005 | ||
| Σu+ | 3 | Asym. stretch | 2178.87 | gas | IR | Bernath, Shayesteh, et al., 2002 Shayesteh, Tereszchuk, et al., 2003 | |
| 3 | Asym. stretch | 2172.2 | Ne | IR | Wang and Andrews, 2005 | ||
| 3 | Asym. stretch | 2159.1 | Ar | IR | Tague and Andrews, 1993 | ||
| 3 | Asym. stretch | 2165.3 | H2 | IR | Wang and Andrews, 2005 | ||
Additional references: Jacox, 1998, page 125; Shayesteh and Bernath, 2006
References
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, 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]
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]
Wang and Andrews, 2005
Wang, X.; Andrews, L.,
One-Dimensional BeH,
Inorg. Chem., 2005, 44, 3, 610, https://doi.org/10.1021/ic048464b
. [all data]
Tague and Andrews, 1993
Tague, T.J., Jr.; Andrews, L.,
Reactions of beryllium atoms with hydrogen. Matrix infrared spectra of novel product molecules,
J. Am. Chem. Soc., 1993, 115, 25, 12111, https://doi.org/10.1021/ja00078a057
. [all data]
Bernath, Shayesteh, et al., 2002
Bernath, P.F.; Shayesteh, A.; Tereszchuk, K.; Colin, R.,
The Vibration-Rotation Emission Spectrum of Free BeH2,
Science, 2002, 297, 5585, 1323, https://doi.org/10.1126/science.1074580
. [all data]
Shayesteh, Tereszchuk, et al., 2003
Shayesteh, A.; Tereszchuk, K.; Bernath, P.F.; Colin, R.,
Infrared emission spectra of BeH[sub 2] and BeD[sub 2],
J. Chem. Phys., 2003, 118, 8, 3622, https://doi.org/10.1063/1.1539850
. [all data]
Jacox, 1998
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement A,
J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017
. [all data]
Shayesteh and Bernath, 2006
Shayesteh, A.; Bernath, P.F.,
Rotational [script-l]-type resonance in BeH[sub 2], BeD[sub 2], and MgH[sub 2],
J. Chem. Phys., 2006, 124, 15, 156101, https://doi.org/10.1063/1.2189859
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
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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