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The I.R. Spectra of Matrix‐isolated SiBr 2 and SiCl 2
Author(s) -
Maass G.,
Hauge R. H.,
Margrave J. L.
Publication year - 1972
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19723920314
Subject(s) - silicon , valence (chemistry) , chemistry , molecule , spectral line , chlorine , divalent , analytical chemistry (journal) , crystallography , computational chemistry , organic chemistry , physics , astronomy
The divalent silicon species SiBr 2 and SiCl 2 were produced by the reaction of the corresponding silicon tetrahalides with elemental silicon at temperatures between 900 and 1150°. The I.R. spectra of these molecules trapped in different matrices (Ne, Ar, N 2 ) were observed, and the fundamentals assigned. A set of valence force constants and the bond angles were obtained from accurate measurements of chlorine and silicon isotopic splittings.