Reactions of a dinuclear tungsten complex containing an O-co-ordinated bridging ketene with various heterocumulenes
Resource
Journal of the Chemical Society, Dalton Transactions 1999: 2243-2248
Journal
Journal of the Chemical Society - Dalton Transactions
Journal Issue
13
Pages
2243-2248
Date Issued
1999
Author(s)
Abstract
Treatment of the dinuclear O-co-ordinated ketene complex W2Cp2(CO)5(μ-η1:η 2-CH2CO) (Cp = η5-C5H5) with PhCH2NCS afforded the dark red bridging thioketene complex W2Cp2(CO)5(μ-η3-SC=CH 2). Reaction of the latter with HBF4 gave the stable cationic product [W2Cp2(CO)5(μ-SCMe3)]BF 4 by addition of a proton to the terminal carbon of the thioketene group. In the reaction of W2Cp2(CO)5(μ-η1:η 2-CH2CO) with CS2 cleavage of one CS bond is accompanied by insertion of the resulting sulfur atom into the tungsten-acyl bond to afford W2Cp2(CO)5(CS)(μ-CH2COS). The Cp′ analogue (Cp′ = η5-C5H4Me) was also prepared. The reaction of the trithiocarbonate S=C(SCH2)2 with W2Cp2(CO)5(μ-η1:η 2-CH2CO) afforded the carbene complex W2Cp2(CO)5[C(SCH2) 2](μ-CH2COS), and with allene gave the allylic complex W2Cp2(CO)5(μ-η1:η 3-CH2COC3H4). Those of the complexes have been characterized by single crystal X-ray diffraction analysis. © Copyright 1999 by the Royal Society of Chemistry.
SDGs
Type
journal article