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Silylenes of the Elemental Composition C 4 H 2 Si: Generation and Matrix‐Spectroscopic Identification
Author(s) -
Maier Günther,
Reisenauer Hans Peter,
Meudt Andreas
Publication year - 1998
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/(sici)1099-0690(199807)1998:7<1285::aid-ejoc1285>3.0.co;2-0
Subject(s) - chemistry , isotopomers , pyrolysis , argon , matrix (chemical analysis) , matrix isolation , composition (language) , elemental analysis , reactive intermediate , organic chemistry , molecule , chromatography , catalysis , linguistics , philosophy
Flash pyrolysis of 1,1‐diethynyl‐2,2,2‐trimethyldisilane ( 16 ) and triethynylsilane ( 18 ) led to the formation of two silylenes of the elemental composition C 4 H 2 Si, namely diethynylsilylene ( 10 ) and ethynylsilacyclopropenylidene ( 7 ), which were isolated in an argon matrix at 10 K. Both compounds could be photoconverted into another isomer, butadiynylsilylene ( 9 ). The identification of these reactive intermediates is based on the comparison between the experimental and calculated IR spectra for the parent compounds as well as for their dideuterated and fully 13 C‐labeled isotopomers.