Nickel catalysts with two alkali ions 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 (7), a bimetallic catalyst complex of Formula (8), a bimetallic catalyst complex of Formula (9), and a bimetallic catalyst complex of Formula (10):
• wherein the bimetallic catalyst complex of Formula (7) has the structure:
• wherein the bimetallic catalyst complex of Formula (8) has the structure:
• wherein the bimetallic catalyst complex of Formula (9) has the structure:
• wherein the bimetallic catalyst complex of Formula (10) has the structure:
• wherein in Formula (7), Formula (8), Formula (9) and Formula (10):
• Ar is 2,6-dimethoxyphenyl;
• L is an optionally substituted phenyl group;
• M1 is Li, Na, K, or Cs;
• M2 is Li, Na, K, or Cs;
• 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 A− is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein Ar is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein L is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein X is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein Y is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein Z is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein R1 is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein R2 is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein R3 is the same in the bimetallic catalyst complex of Formula (7), Formula (8), Formula (9), and Formula (10);
• wherein M1 is the same in the bimetallic catalyst complex of Formula (7) and Formula (8);
• wherein M2 is the same in the bimetallic catalyst complex of Formula (9) and Formula (10);
• and wherein M1 and M2 are different from one another.