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Cyclometalation of Thiobenzophenones with Mononuclear Methyliron and ‐cobalt Complexes
Author(s) -
Beck Robert,
Sun Hongjian,
Li Xiaoyan,
Camadanli Sebnem,
Klein HansFriedrich
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800397
Subject(s) - chemistry , trigonal bipyramidal molecular geometry , cobalt , octahedron , coordination geometry , coordination complex , bipyramid , crystallography , stereochemistry , octahedral molecular geometry , molecule , crystal structure , metal , inorganic chemistry , organic chemistry , hydrogen bond
Under smooth conditions (–70 °C) thiobenzophenone derivatives react with [Fe(CH 3 ) 2 (PMe 3 ) 4 ] to form five‐membered metallacycles 1 and 2 by C–H activation. These complexes show octahedral coordination geometry; with [Co(CH 3 )(PMe 3 ) 4 ], complexes 3 and 4 with trigonal‐bipyramidal coordination are formed. Reaction with basic [Ni(CH 3 ) 2 (PMe 3 ) 3 ] causes reductive elimination (of ethane) with formation of zerovalent η 2 ‐C=S complexes 5 and 6 , possessing triangular‐planar coordination. The structures of the complexes were confirmed by X‐ray diffraction, and their coordination geometry is discussed.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)