@article{c473388950e3413bae2ff18d883acf9b,
title = "Di(cyclopentadienyl)zirconium(II) bis(phosphine) complexes",
abstract = "Reactive di(cyclopentadienyl)zirconium(II) bis-(phosphine) complexes were prepared by phosphine ligand-induced reductive elimination from [(η5-C5H5)2-Zr(H)R], R = alkyl.",
author = "Gell, \{Kerrie I.\} and Jeffrey Schwartz",
note = "Funding Information: (Jp+ 15-5 Hz). This dimeric structure is analogous to that of niobocene, with which it is isoelectronic.8 The ZrIII dimer J.C.S. CHEM. COMM., 1979 (7b)is also obtained (in yields of ca. 50\%) by ligand-induced elimination of H, when 'zirconocene' [prepared by auto- decomposition of (cp),Zr(R)H3 or by Na-Hg reduction of (cp),ZrCl,] is treated with (3b)at 50 {"}C in toluene or tetra- hydrofuran (THF) . These observations suggest that the polymeric zirconocenes prepared by conventional routes may contain bridging hydrides and the 7f :o-bridging cyclopentadienyl ligand, analogous to niobocene, rather than the bridging fulvalenide ligand found for green stable titanoceneg (Scheme 3). We thank the National Science Foundation for support and K.I.G. ",
year = "1979",
doi = "10.1039/C39790000244",
language = "English (US)",
pages = "244--246",
journal = "Journal of the Chemical Society D: Chemical Communications",
issn = "0022-4936",
publisher = "Chemical Society",
number = "6",
}