A Dinuclear Tungsten(III) Complex Containing a Tungsten–Tungsten Triple Bond with an Asymmetric Arrangement of Ligands: [W2Cl3(OCMe3)3(NHMe2)2

Abstract

The title complex, tri-tert-butoxy-1κ 2 O,2κO-tri-chloro-1κCl,2κ 2 Cl-bis(N,N-dimethylamine)-1κN,2κN-ditungsten(W-W), [W 2 Cl 3 (C 4 H 9 O) 3 (C 2 H 7 N) 2 ], adopts a dinuclear structure in which two tungsten(III) atoms are united by a W≡W bond unsupported by bridging ligands. Both W atoms are coordinated to four ligand atoms that lie in a roughly square-planar arrangement. The two W atoms have different coordination environments : one is ligated by two cis-OR groups, one Cl and one HNMe 2 ligand, while the other is ligated by two trans-Cl ligands, one OR group and one HNMe 2 ligand.