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π-Arene complexes IX. Crystal structure of a novel benzoyl bridged heterobimetallic complex, [cis-(CO)4{(MeO)3P}Mn{μ-η1:η6-C6H5C(O)}Cr(CO)3]

Authors
Journal
Inorganica Chimica Acta
0020-1693
Publisher
Elsevier
Publication Date
Volume
208
Issue
2
Identifiers
DOI: 10.1016/s0020-1693(00)85123-3

Abstract

Abstract The bimetallic complex [ cis-(CO) 4{(MeO) 3P}Mn{μ-η 1:η 6-C 6H 5C(O)}Cr(CO) 3] ( 1) was obtained by the reaction of [(η 6-C 6H 5Li)Cr(CO) 3] with Mn(CO) 5Br in the presence of one equivalent of P(OMe) 3 at low temperature. The structure of 1, determined by single crystal X-ray diffraction methods, shows the coordination around the manganese atom to be approximately octahedral, with the manganese moiety displaced from the plane of the η 6-arene ring away from the Cr(CO) 3 group. The phosphite ligand is located on the same side of the molecule as the chromium tripodal moiety, and interlocked between carbonyl ligands. Crystals of 1 are triclinic, space group P 1 , with Z=2 in a unit cell of dimensions a=8.658(1), b=10.300(1), c=11.891(1) Å, α=90.75(1), β=95.29(1) and γ=95.16(1)°. The structure was refined to R w=0.029 for 290 parameters using 5112 observed reflections.

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