Bis-phenyl-phenoxy polyolefin catalysts having an alkoxy- or amido-ligand on the metal for improved solubility

A catalyst system comprising a metal-ligand complex according to formula (I):

• where:
• M is a metal chosen from titanium, zirconium, or hafnium, the metal being in a formal oxidation state of +2, +3, or +4;
• X is selected from the group consisting of —ORX or —NRX2;
• wherein each RX is independently a (C1-C50)hydrocarbyl, (C1-C50)heterohydrocarbyl, or —H and at least one RX is (C1-C50)hydrocarbyl, (C1-C50)heterohydrocarbyl, and, when X is —NRX2, optionally two RX are covalently linked;
• the metal-ligand complex is overall charge-neutral;
• each Z is independently chosen from —O—, —S—, —N(RN)—, or —P(RP)—;
• R1 and R16 are independently selected from the group consisting of —H, (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, —Si(RC)3, —Ge(RC)3, —P(RP)2, —N(RN)2, —ORC, —SRC, —NO2, —CN, —CF3, RCS(O)2—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)—, halogen, radicals having formula (II), radicals having formula (III), and radicals having formula (IV):
• where each of R31-35, R41-48, and R51-59 is independently chosen from —H, (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, —Si(RC)3, —Ge(RC)3, —P(RP)2, —N(RN)2, —N═CHRC, —ORC, —SRC, —NO2, —CN, —CF3, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(RN)—, (RC)2NC(O)—, or halogen,
• provided that at least one of R1 or R16 is a radical having formula (II), a radical having formula (III), or a radical having formula (IV);
• each of R2-4, R5-8, R9-12, and R13-15 is independently selected from —H, (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, —Si(RC)3, —Ge(RC)3, —P(RP)2, —N(RN)2, —ORC, —SRC, —NO2, —CN, —CF3, RCS(O)—, RCS(O)2—, (RC)2C═N—, RCC(O)O—, RCOC(O)—, RCC(O)N(R)—, (RC)2NC(O)—, and halogen;
• L is (C2-C40)hydrocarbylene or (C2-C40)heterohydrocarbylene;
• and
• each RC, RP, and RN in formula (I) is independently a (C1-C30)hydrocarbyl, (C1-C30)heterohydrocarbyl, or —H.