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A Novel Type of Pentacoordinate Silicon Complexes and Unusual Ligand Coupling by Intramolecular Electron Transfer
Author(s) -
Driess Matthias,
Muresan Nicoleta,
Merz Klaus
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200501997
Subject(s) - tetracoordinate , intramolecular force , chemistry , silicon , ligand (biochemistry) , halide , electron transfer , coupling (piping) , crystallography , stereochemistry , photochemistry , inorganic chemistry , materials science , organic chemistry , planar , receptor , biochemistry , computer graphics (images) , computer science , metallurgy
Even the electropositive element silicon initiates electron‐transfer processes in amido‐bis(enolate) complexes: This is shown by the reactions of halides RSiX 3 with HN[CH 2 C(O) t Bu] 2 in the presence of a base. While small substituents (R=H, Cl, Br, Ph) furnish the dinuclear pentacoordinate complexes 1 , the bulkier t Bu 3 Si group favors formation of the dinuclear tetracoordinate complex 2 .