Abstract
Cationic hydride complexes of bis(cyclopentadienyl)tungsten(IV) have been prepared and studied. The complex [W(η-C5H5)2H(thf)][SO3CF3] reacts with CS2 in d6-acetone to form the chelated O-alkyl dithiocarbonate tungsten hydride insertion product [W(η-C5H5)2(η2-S2COCH(CD3)2-S,S′)][SO3CF3] as demonstrated by single crystal X-ray diffraction and NMR spectroscopy. The styrene complex [W(η-C5H5)2H(η2-CH2CHC6H5)][PF6] has been prepared as a mixture of exo and endo isomers. This isomeric mixture reacts thermally with NCMe to give [W(η-C5H5)2(CH2CH2C6H5)(NCMe)][PF6] and photochemically with NCMe to give [W(η-C5H5)2H(NCMe)][PF6]. The molecular structures of the exo isomer and of the benzonitrile complex [W(η-C5H5)2H(NCPh)][SO3CF3] are reported.
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