No abstract

The preparation of novel titanium complexes bearing o-phosphinophenol ligands is reported. The feature of this ligand system is that its electronic and steric properties can be independently tuned. The complexes were found to be fluxional by 1H NMR analysis at low temperature. An X-ray structural analysis showed that in the solid state the molecule is chiral at the metal center. These complexes were shown to be effective catalysts for olefin hydrogenation and imine hydrosilylation.

92-03266

No abstract

Acknowledgment. The author is grateful to the Natural Sciences and Engineering Research Council of Canada and the University of Alberta for support of this work. I also thank Professor M. Cowie of this department for the use of his diffractometer and for helpful discussions on the X-ray crystallographic analysis. Supplementary Material Available: Analytical and spectroscopic data for lb, lc, 2b, 2c, 3b, and 3c and tables of crystal data and details of intensity collection, positional parameters, anisotropic thermal parameters, least-squares planes, and bond lengths and angles (17 pages); a listing of observed and calculated structure factor amplitudes (12 pages). Ordering information is given on any current masthead page.