A zirconoxy carbene from monocarbonylbis(η-cyclopentadienyl)tungsten and permethylzirconocene dihydride: (η5-C5H5)2W=C(H)OZr(H)(η5C5Me5)2

Pentacarbonyl-2κ5C-chlorido-1κCl-bis[1(η5)-cyclopentadienyl][μ2-oxido(methyl)methylene-1:2κ2O:C]tungsten(0)zirconium(IV)

“…In the molecular structure the Zr-O distance is shorter than all other zirconocene complexes containing a Zr-O-C(R)═M (where M = any transition metal) group reported to date (Cambridge Structural Database, v. 5.29; Allen, 2002), except when R = H [1.971 (4) Å; Wolczanski et al, 1983]. The Zr-O-C angle, on the other hand, is more linear than the previously published structures, with a larger value than that of the benzoxycarbene W(CO) 5 C(C 6 H 5 )OZr(C 5 H 5 ) 2 OC 6 H 5 (166.1 (5)°; Erker et al, 1989).…”

“…For related literature regarding catalytic data of the title compound, see: Sinn et al (1980);Brü ll et al (2001); Luruli et al (2004Luruli et al ( , 2006. For comparable structures, see: Erker et al (1989); Wolczanski et al (1983); Esterhuysen et al (2008). For a description of the Cambridge Structural Database, see: Allen (2002).…”