Nickel catalysts with two metal cations for homopolymerization and copolymerization

A catalyst composition, comprising at least four bimetallic catalyst complexes, wherein the at least four bimetallic catalyst complexes are selected from:

• a bimetallic catalyst complex of Formula (15), a bimetallic catalyst complex of Formula (16), a bimetallic catalyst complex of Formula (17), and a bimetallic catalyst complex of Formula (18):
• wherein the bimetallic catalyst complex of Formula (15) has the structure:
• wherein the bimetallic catalyst complex of Formula (16) has the structure:
• wherein the bimetallic catalyst complex of Formula (17) has the structure:
• wherein the bimetallic catalyst complex of Formula (18) has the structure:
• wherein in Formula (15), Formula (16), Formula (17) and Formula (18):
• m is 2, 3, 4, or 5;
• n is 2, 3, 4, or 5;
• Ar is 2,6-dimethoxyphenyl;
• L is an optionally substituted phenyl group;
• M4 is a 2+ cation, 3+ cation, 4+ cation, or 5+ cation;
• M5 is a 2+ cation, 3+ cation, 4+ cation, or 5+ cation;
• A− is a weakly coordinating anion;
• X, Y, and Z are each independently selected from hydrogen, an electron donating group, and an electron withdrawing group;
• and
• R1, R2, and R3 are each independently selected from optionally substituted aryl, optionally substituted alkyl, and optionally substituted cycloalkyl;
• wherein m is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein n is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein A− is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein Ar is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein L is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein X is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein Y is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein Z is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein R1 is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein R2 is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein R3 is the same in the bimetallic catalyst complex of Formula (15), Formula (16), Formula (17), and Formula (18);
• wherein M4 is the same in the bimetallic catalyst complex of Formula (15) and Formula (16);
• wherein M5 is the same in the bimetallic catalyst complex of Formula (17) and Formula (18);
• and wherein M4 and M5 are different from one another.