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Complexes with an η 2 ‐μ 2 ‐SiO Bridge. Structure of the Bimetallic Complex
Author(s) -
Braunstein Pierre,
Knorr Michael,
Tiripicchio Antonio,
Camellini Marisa Tiripicchio
Publication year - 1989
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.198913611
Subject(s) - bimetallic strip , bridge (graph theory) , ring (chemistry) , molecule , chemistry , crystallography , polymer chemistry , materials science , catalysis , organic chemistry , medicine
An MM′SiO four‐membered ring characterizes complexes 1 and 2 . The novel η 2 ‐μ 2 ‐SiO bridge of 1 is “hemilabile” in solution (only one OMe 1 H NMR signal), whereas it is stable for 2 . These findings could contribute to a better understanding of coordinatively unsaturated, catalytically active multinuclear complexes on supports such as SiO 2 (Ph 2 PCH 2 PPh 2 ).