Patent ID: 6107421
Filing Date: 2000-08-22
Classification: C07F,C08F,Y10S

Abstract:
A metal complex corresponding to the formula: ##STR10## or a dimer, solvated adduct, chelated derivative or mixture thereof, wherein:Y is a divalent derivative of a boratabenzene group or a hydrocarbyl-, dihydrocarbylamino-, silyl- or germyl-substituted boratabenzene group containing up to 50 nonhydrogen atoms that is bonded via its delocalized .pi.-electrons to M;L is a monovalent or divalent amido group, said L group containing up to 50 nonhydrogen atoms;M is a metal of Group 3, 4 or the Lanthanide series of the Periodic Table of the Elements;Z is a covalently bound, divalent substituent of up to 50 non-hydrogen atoms having the formula, --(ER.sup.2.sub.2).sub.m --, wherein E independently each occurrence is carbon, silicon or germanium, R.sup.2 independently each occurrence is selected from the group consisting of hydrocarbyl, hydrocarbyloxy, silyl, and germyl of up to 20 atoms other than hydrogen, and m is an integer from 1 to 3;X' is a neutral ligand having up to 20 non-hydrogen atoms;X"" independently each occurrence is a monovalent, anionic moiety selected from hydride, halo, hydrocarbyl, silyl, germyl, hydrocarbyloxy, amide, siloxy, halohydrocarbyl, halosilyl, silylhydrocarbyl, and dihydrocarbylaminohydrocarbyl having up to 20 non-hydrogen atoms, or two X"" groups together form a divalent hydrocarbadiyl group;n is a number from 0 to 3; andp is an integer from 0 to 2 with the proviso that if L is Y or a hydrocarbadiyl group, then n is 1 and p is 0.