Binaphtholato complexes of tungsten(VI) from tris(1,2-ethanediolato)tungsten(VI). Synthesis and X-ray structures of [W(bino)(diolato)(2)] complexes
: Lehtonen A, Sillanpaa R
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
: 2000
: Polyhedron
: POLYHEDRON
: POLYHEDRON
: 19
: 26-27
: 2579
: 2584
: 6
: 0277-5387
DOI: https://doi.org/10.1016/S0277-5387(00)00560-X
Racemic 6,6'-disubstituted-1,1'-bi-2-naphthols H(2)X(2)bino (X = H, Br) and corresponding binaphthyl acetates react with trisdiolatetungsten(VI) complexes [W(eg)(3)] and [W(eg)(pin)(2)] (eg = ethanediolate dianion, pin = pinacolate dianion) forming heteroleptic complexes [W(X(2)bino)(diolato)(2)]. The X-ray crystal structure determinations confirmed that the isolated compounds are made of monomeric tris(diolate)tungsten(VI) molecules in which the central tungsten atom is bonded to six oxygen atoms forming a distorted octahedral coordination sphere around the metal ion. (C) 2000 Elsevier Science B.V. All rights reserved.