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C3H4Si Species: Generation and Matrix-Spectroscopic Identification of Some Silacyclobutadiene Isomers

✍ Scribed by Günther Maier; Hans Peter Reisenauer; Jörg Jung; Harald Pacl; Heiko Egenolf

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
457 KB
Volume
1998
Category
Article
ISSN
1434-193X

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✦ Synopsis

Flash pyrolyses of four suitable precursors -namely 1,1,1-composition (12, 13, 14, 17, and 18) were identified. Except ethynylsilaethene (18), all compounds observed are silylenes. trimethyl-2-propargyldisilane (32), its allenyl (34) and propynyl isomer (35), as well as 2-ethynyl-1,1,1,2-Their identification is based on the comparison of the experimental and calculated (BLYP/6-31G*) IR spectra. tetramethyldisilane (31) -lead to the formation of three C 3 H 4 Si species (7, 11, and 15). By examination of their Silacyclobutadiene (4) or silatetrahedrane (25) could not be detected. photochemistry five additional compounds of the same

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