Heiko Egenolf

Reaction of Silicon Atoms with Hydrogen Cyanide: Generation and Matrix-Spectroscopic Identification of CHNSi and CNSi Isomers

Cocondensation of thermally generated silicon atoms with hydrogen cyanide in an argon matrix can be used as an access to compounds of the composition CHNSi and CNSi. Isolation, matrix-spectroscopic identification and photo-chemical behavior of these species are described. Structural assignments are made by the comparison of experimental with calculated IR spectra.

Reaktion von atomarem Silicium mit Methanol: Matrixspektroskopische Identifizierung von Methoxysilylen [1]

Summary. Codeposition of thermally generated silicon atoms with methanol in an argon matrix at 12 K led to the formation of methoxysilylene (4) by insertion of the silicon atom into the O–H bond of the substrate. Its spectroscopic identification was aided by calculated IR spectra and deuteriation experiments. Both the s-cis (4a) and the s-trans conformer (4b) of methoxysilylene could be observed and interconverted into each other photochemically.