✦ LIBER ✦

SiH+5 and the proton affinity of monosilane

✍ Scribed by T.M.H. Cheng; F.W. Lampe

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 233 KB
Volume: 19
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(73)85141-3

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✦ Synopsis

Tandem mass spectrometric studies show that SiH; is formed in bimolecular reactions of SiH, with NH;, C,H<, GHz and C,Hi ions. The dependence of the reaction cross sections on ion energy indicates the formation of SiH; from NH;, C,H:, and C,Hi to be esothcrmic reactions, while formation from C,Hi is endothermic. Using known thermochemical data, these facts permit the assignment of 150 and 156 kcal/mole to the lower and upper limits of the proton affinity of monosilanc.

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