Diarsine

Formula: As₂H₄
Molecular weight: 153.87496
CAS Registry Number: 15942-63-9
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Gas phase ion energetics data

Data compiled by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV)	Method	Reference
12.2 ± 0.3	EI	Saalfeld and Svec, 1963

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference
As⁺	14.3 ± 0.3	?	EI	Saalfeld and Svec, 1963
AsH₂⁺	12.9 ± 0.4	?	EI	Saalfeld and McDowell, 1967
As₂⁺	13.0 ± 0.3	2H₂	EI	Saalfeld and Svec, 1963
As₂H⁺	12.7 ± 0.3	H₂+H	EI	Saalfeld and Svec, 1963
As₂H₂⁺	12.6 ± 0.3	H₂	EI	Saalfeld and Svec, 1963
As₂H₃⁺	12.5 ± 0.3	H	EI	Saalfeld and Svec, 1963

References

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Saalfeld and Svec, 1963
Saalfeld, F.E.; Svec, H.J., The mass spectra of volatile hydrides. II. Some higher hydrides of the group IVB and VB elements, Inorg. Chem., 1963, 2, 50. [all data]

Saalfeld and McDowell, 1967
Saalfeld, F.E.; McDowell, M.V., The mass spectra of volatile hydrides. V. Silylarsine, Inorg. Chem., 1967, 6, 96. [all data]

Notes

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Symbols used in this document:

AE Appearance energy
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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