Catalyst compositions for the polymerization of olefins

An olefin polymerization catalyst comprising (a) a Group 8-10 transition metal, (b) a ligand of the formula VI, XII, IX, XIII, XIV, XV, or XXII and optionally (c) a Bronsted or Lewis acid, 51

• wherein R3 is hydrocarbyl or substituted hydrocarbyl;
• R4 is H, hydrocarbyl, substituted hydrocarbyl, or silyl;
• R5 is hydrocarbyl or substituted hydrocarbyl;
• Z is O or S;
• U is -OR10, -SR10, -SeR10 or -NR10R8, wherein R10 and R8 are each independently selected from H, hydrocarbyl), substituted hydrocarbyl, or silyl, and in addition R10 and R8 may collectively form a ring with nitrogen,
• G1 is hydrocarbyl or substituted hydrocarbyl and may comprise a carbocyclic or heterocyclic ring, thereby forming a 5-membered or 6-membered heterocyclic ring comprising G1, C, and N;
• G2 is hydrocarbyl or substituted hydrocarbyl and may comprise a carbocyclic or heterocyclic ring, thereby forming a 5-membered or 6-membered heterocyclic ring comprising G2, V, N, and N;
• V is -CR6, N, or -PR6R9, wherein, R6 and R9 are each independently selected from H, hydrocarbyl, substituted hydrocarbyl, silyl or heteroatom connected hydrocarbyl, and in addition, R6 and R9 may collectively form a ring with phosphorus;
• Ω is hydrocarbyl or substituted hydrocarbyl;
• and,
• n is an integer between 2 and 6.

A composition comprising (a) a group 8-10 transition metal M, (b) one or more Lewis acids, and (c) a binucleating or multinucleating ligand of the formula VI 60

• wherein the Lewis acid or acids are bound to one or more heteroatoms which are π-conjugated to the donor atoms bound to the transition metal M;
• R3 is hydrocarbyl or substituted hydrocarbyl;
• R4 is H, hydrocarbyl, substituted hydrocarbyl, or silyl,
• G2 is hydrocarbyl or substituted hydrocarbyl and may comprise a carbocyclic or heterocyclic ring, thereby forming a 5-membered or 6-membered heterocyclic ring comprising G2, V, N and N,
• V is -CR6, N, or -PR6R9;
• wherein, R6 and R9 are each independently selected from H, hydrocarbyl, substituted hydrocarbyl, silyl or heteroatom connected hydrocarbyl, and in addition, R6 and R9 may collectively form a ring with phosphorus.