Dibenzylbis(<i>tert</i>-butylimido)molybdenum(VI), containing both η<sup>1</sup>- and η<sup>2</sup>-benzyl ligands
作者:W. Clegg、M. R. J. Elsegood、P. W. Dyer、V. C. Gibson、E. L. Marshall
DOI:10.1107/s0108270199003510
日期:1999.6.15
The title compound, [Mo(CH2Ph)(2)(C4H9N)(2)], contains two slightly bent imido ligands and two benzyl ligands. One of these benzyl ligands is coordinated as a simple eta(1)-alkyl ligand, while the other is eta(2)-coordinated through the CH2 group and the ipso-C atom, i.e. dibenzyl-kappa C-alpha; kappa(2)C(1), C-alpha-bis(tert-butylimido-kappa N)molybdenum(VI). Considering the eta(2)-benzyl ligand as occupying one coordination site, this gives a tetrahedral geometry around molybdenum, the main angular distortion being a mutual repulsion of the two strongly pi-donating imido ligands. This complex is not crystallographically isostructural with its chromium analogue, but the two molecular structures are very similar.