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Synthesis of Cyclosilanylethynes
Author(s) -
Hengge Edwin,
Baumegger Alfred,
Eibl Markus,
Hohenester Erhard,
Kratky Christoph
Publication year - 1990
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199006411
Subject(s) - acetylene , triple bond , halide , chemistry , bond length , crystallography , bond , stereochemistry , double bond , polymer chemistry , organic chemistry , crystal structure , finance , economics
No σ‐π interaction takes place between the Si skeleton and CC triple bond in cyclosilanylethynes such as cyclo ‐Si 6 Me 11 ‐CC‐ cyclo ‐Si 6 Me 11 and 1 . This follows from the NMR and IR spectroscopic data, as well as from the CC bond length (121.2pm) and CCSi angle (177°) in the case of the former. The compounds were prepared from cyclosilanyl (di)halides, acetylene and Na/K alloy.