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Si–H Activation in Titanocene and Zirconocene Complexes of Alkynylsilanes RC≡CSiMe 2 H (R= t Bu, Ph, SiMe 3 , SiMe 2 H): A Model To Understand Catalytic Reactions of Hydrosilanes
Author(s) -
Peulecke Normen,
Ohff Andreas,
Kosse Peer,
Tillack Annegret,
Spannenberg Anke,
Kempe Rhett,
Baumann Wolfgang,
Burlakov Vladimir V.,
Rosenthal Uwe
Publication year - 1998
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/(sici)1521-3765(19980904)4:9<1852::aid-chem1852>3.0.co;2-e
Subject(s) - agostic interaction , hydrosilylation , catalysis , acetylene , chemistry , polysilane , metal , polymer chemistry , photochemistry , organic chemistry , polymer
An agostic interaction between the Si–H bond and the metal center (depicted on the right) is the characteristic feature of the title complexes, which could be prepared by acetylene exchange reactions. IR, NMR, and X‐ray structural investigations reveal that the effect of the Si‐H‐metal interaction is considerably stronger at low temperatures and in the solid state. This mode of bond activation is important in active catalysts for hydrosilylation and dehydrogenative polysilane reactions.