Raman Spectroscopic Evidence for Colinear Arrangement in the Solid State of Thermochromic Distiranes
نویسنده
چکیده
The IR and Raman spectra of the compounds (CH,),Sb-Sb(CH,), (I), [(CH,),Si],SbSb[Si(CH,),], (II), [(CH,),Si],As-As[Si(CH,),], (III) and (C,H,),Sb--Sb(C,H,), (IV) have been studied in the liauid and solid states. Given assianments for I to III are based on normal coordinate analyses, and force constants are reported. The solid state Raman spectra of I and II exhibit strong lines near 50 cm-‘, which are assigned to the longitudinal acoustic mode of an infinite linear chain of Sb atoms. Intermolecular Sb...Sb force constants, 0.125 and 0.18 N cm-‘, are determined for I and II respectively.
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