Bis(methylidene) complex of tantalum supported by a PNP ligand

被引：33

作者：

Gerber, Laura C. H.

Watson, Lori A.

Parkin, Sean

Weng, Wei

Foxman, Bruce M.

Ozerov, Oleg V.

机构：

[1] Earlham Coll, Dept Chem, Richmond, IN 47374 USA

[2] Brandeis Univ, Dept Chem, Waltham, MA 02454 USA

[3] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA

来源：

ORGANOMETALLICS | 2007年 / 26卷 / 20期

关键词：

D O I：

10.1021/om700715s

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of (PNP)Li with TaF5 produces pentagonalbipyramidal (PNP)TaF4 (2). Alkylation of 2 with MeMgBr allows for the isolation of (PNP)TaMe4 (3). (PNP)TaMe4 (3) evolves thermally and/or photochemically into a bis(methylidene) complex (PNP)Ta(=CH2)(2) (4). The identify of the latter has been established by X-ray structural, NMR spectroscopic, and DFT computational studies. It does not appear that 4 possesses agostic interactions in solution.

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页码：4866 / 4868

页数：3

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