POLYMERIZATION-ACTIVE TRANSITION METAL COMPLEX COMPOUNDS COMPRISING A STERICALLY DEMANDING LIGAND SYSTEM

摘要

New group VIIIB transition metal complex compounds have a bidentate bis((N-aliphatic and/or aromatic carbo- and/or heterocyclyl)-(N-heteroaryl- or -(heteroaryl)-aryl)-imine) chelate ligand, optionally with an aliphatic or aromatic carbo- or heterocyclic bridge, and 2 neutral or monoanionic, monodentate ligands or a bidentate ligand. New group VIIIB transition metal complex compounds have a bidentate bis((N-aliphatic and/or aromatic carbo- and/or heterocyclyl)-(N-heteroaryl- or -(heteroaryl)-aryl)-imine) chelate ligand, optionally with an aliphatic or aromatic carbo- or heterocyclic bridge, and 2 neutral or monoanionic, monodentate ligands or a bidentate ligand, and are of the formula (I). R1, R3 = hydrogen (H), 1-20 carbon (C) alkyl, 3-10 C cycloalkyl, 6-16 C aryl, 1-10 C alkyl-(6-16 C)-aryl, Si(R6)3, N(R6)(R7), OR6 or SR6; or R1 and R3 together with Ca, Cb and optionally C' = a 5-, 6- or 7-membered aliphatic or aromatic, (un)substituted carbo- or heterocycle; R2, R4 = 4-16 C heteroaryl or 6-16 C aryl with 4-16 C heteroaryl or 6-16 C aryl substituents in both vicinal positions to the bond with Na and Nb respectively; R5 = H or R; R, R6, R7 = 1-10 C alkyl, 6-16 C aryl or 1-10 C alkyl-(6-16 C)-aryl; m = 0 or 1; M = group VIIIB element; T, Q = neutral or monoanionic, monodentate ligands; or TQ = a diketoenolate unit or a 2 or 3 C alkylene unit with a terminal methyl ketone or linear 1-4 C alkyl ester or nitrile group; A = non- or poorly-coordinating anion; x, p = 0-3; q, n = 1-3.