Abstract:
The present invention relates to a new metal complex of the formula (1), wherein: M is a group 4-6 metal R 1 means is a substituent comprising a heteroatom of group 15, through which R 1 is bonded to the imine carbon atom; R 2 -R 5 are the same or different and each represents a hydrogen atom, an optionally substituted C1 -10 alkyl group, an optionally substituted C1 -10 alkoxy group, an optionally substituted C6-20 aryl group, an optionally substituted C6-20 aryloxy group, an optionally substituted C7-20 aralkyi group, an optionally substituted C7-20 aralkyloxy group, a silyl group substituted with optionally substituted C1 -20 hydrocarbon group(s), a C1 -20 hydrocarbon-substituted amino group or the adjacent R 2 -R 5 may be linked to each other to form a ring; R 6 -R 9 are the same or different and each represents a hydrogen atom, a halogen atom, an optionally substituted C1 -10 alkyl group, an optionally substituted C1-10 alkoxy group, an optionally substituted C6-20 aryl group, an optionally substituted C6-20 aryloxy group, an optionally substituted C7-20 aralkyi group, an optionally substituted C7-20 aralkyloxy group, a silyl group substituted with optionally substituted C1 -20 hydrocarbon group(s), a C1-20 hydrocarbon-substituted amino group or the adjacent R 6 -R 9 may be linked to each other to form a ring; L is an optional neutral Lewis basic ligand, and j is an integer denoting the number of neutral ligands L; and X is an anionic ligand, and r is an integer denoting the number of anionic ligands X.
Abstract:
A metal complex of the formula (1) CyAMX(L) n wherein Cy is a cyclopentadienyl-type ligand, M is a metal of group 4; A is an amidine-containing ligand moiety, represented by formula 2: wherein the amidine-containing ligand is covalently bonded to the metal M via the imine nitrogen atom, and Sub1is a substituent comprising a group 14 atom through which Sub1is bonded to the imine carbon atom and Sub2 is a substituent comprising a heteroatom of group 15, through which Sub2 is bonded to the imine carbon atom; X is an allyl borateligandderived from a conjugated diene ligand, D, and a borane, B and L is a neutral Lewis basic ligand wherein the number of said metal ligands "n" is in the range of 1 to the amount that specifies the 18-electron rule.