(5)-TERT-BUTYLCYCLOPENTADIENYL)DICHLORONIOBIUM(IV)

Authors
MCCAMLEY A MILLER TJ
Citation
A. Mccamley et Tj. Miller, (5)-TERT-BUTYLCYCLOPENTADIENYL)DICHLORONIOBIUM(IV), Acta crystallographica. Section C, Crystal structure communications, 50, 1994, pp. 33-36
Citations number
10
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
50
Year of publication
1994
Part
1
Pages
33 - 36
Database
ISI
SICI code
0108-2701(1994)50:<33:(>2.0.ZU;2-8
Abstract
The monomeric molecule of the title compound, [NbCl2-(C9H13)2], is bes t described as a paramagnetic pseudo-tetrahedral complex of niobium(IV ). The two tert-butylcyclopentadienyl ligands are asymmetrically bound to the Nb atom [Nb-C bond-length range 2.394 (6)-2.470 (6) angstrom]. The asymmetry is accounted for in terms of the steric demand of the ( t)Bu groups and Cl ligands. Pseudo-tetrahedral geometry is completed b y two Cl ligands [Nb-Cl 2.477 (2) and 2.483 (2) angstrom, Cl-Nb-Cl 84. 15 (6)-degrees].