Beryllium monohydride


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.

Quantity Value Units Method Reference Comment
Δfgas76.769kcal/molReviewChase, 1998Data last reviewed in March, 1963
Quantity Value Units Method Reference Comment
gas,1 bar42.263cal/mol*KReviewChase, 1998Data 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 5.9958308.507180
B 1.8851100.374768
C 0.942933-0.044900
D -0.7415110.003018
E 0.032494-0.780834
F 74.9989072.57729
G 49.1036150.45751
H 76.7680076.76800
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1963 Data last reviewed in March, 1963

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:
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 ± 0.10PDRackwitz, Feldman, et al., 1977ΔHf(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
8.21EVALHuber and Herzberg, 1979LLK
8.21 ± 0.05SColin and De Greef, 1975LLK
8.20 ± 0.06SColin, DeGreef, et al., 1974LLK

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.

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

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