氯双（二甲基氨基）（η5-2,5-二甲基吡咯基）钛（IV），[Ti(NMe2)2(DMP)Cl]

Chlorobis(dimethylamido)(eta5-2,5-dimethylpyrrolyl)titanium(IV), [Ti(NMe2)2(DMP)Cl].

作者信息

Duarte M Teresa, Ferreira A, Dias A R, Salema M M, Ferreira da Silva João

机构信息

Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.

出版信息

Acta Crystallogr C. 2005 Feb;61(Pt 2):m104-6. doi: 10.1107/S0108270104031695. Epub 2005 Jan 31.

DOI:10.1107/S0108270104031695

PMID:15695886

Abstract

The structure of the title compound, [Ti(C2H6N)2(C6H8N)Cl], displays a eta5-coordination mode for the pyrrolyl ring, confirmed by the values of the slip parameter [0.073 (9) A] and the fold angle [4.6 (6) degrees ]. This coordination is confirmed by NMR data, which point to the involvement of the complex in a fluxional process in solution above 285 K, passing through an intermediate involving simultaneously a metal-azaallyl and a metal-olefin bond.

摘要

标题化合物[Ti(C₂H₆N)₂(C₆H₈N)Cl]的结构显示吡咯环具有η⁵配位模式，滑移参数值[0.073(9) Å]和折叠角[4.6(6)°]证实了这一点。NMR数据证实了这种配位，该数据表明该配合物在285 K以上的溶液中参与了一个动态过程，经过一个同时涉及金属-氮杂烯丙基键和金属-烯烃键的中间体。