Non-Aromatic Hydrocarbon Soluble Olefin Polymerization Catalysts and Use Thereof

A non-aromatic hydrocarbon soluble catalyst compound represented by the Formula (X):

• wherein:
• M is a Group 4 metal;
• each X is independently a leaving group, such as an anionic leaving group;
• m is 1, 2 or 3;
• L is a Group 15 or 16 element;
• Y and Z are independently phosphorus, nitrogen sulfur, or oxygen;
• R1 and R2 are, independently, a C1 to C20 hydrocarbon group, a heteroatom containing group having up to twenty carbon atoms, silicon, germanium, tin, lead, or phosphorus, R1 and R2 may also be interconnected to each other directly or bound to each other through other groups);
• R3 may be absent or may be a hydrocarbon group, a hydrogen, a halogen, a heteroatom containing group;
• and
• each R4 and R5 is independently a substituted C5 to C22 aromatic group,
• wherein the catalyst compound is soluble in methylcyclohexane at greater than 10 weight percent at 25° C.