Fac-Tricarbonyl(4,4'-dimethyl-2,2'-bipyridine)triphenyltin(II)rhenium(I).

Abstract

The title organometallic compound, fac-tricarbonyl-2κ 3 C-(4,4'-dimethyl-2,2'-bipyridine)-2κ 2 N,N'-triphenyl-1κ 3 C 1 -tin(II)-rhenium(I)(Sn-Re), [ReSn(C 6 H 5 ) 3 (C 12 H 12 N 2 )(CO) 3 ], contains three unique π-π stacking interactions. The result is an infinite chain of uninterrupted alternating intra- and intermolecular offset π-π stacking interactions throughout the crystal lattice. This extended π-π stacking arrangement, and an additional isolated intramolecular π-π interaction between the remaining 4,4'-dimethyl-2,2'-bipyridine ring and a second phenyl group, impose geometric constraints on the Re and Sn atoms, yielding distorted octahedral and tetrahedral coordinations, respectively, for the metal centers.