Patent ID: 7642324

Claim:
A method comprising reacting one or more reagents in the presence of a catalyst comprising a composition, under conditions sufficient to yield one or more reaction products, the composition comprising: (a) a compound characterized by the formula: wherein R 1 is an optionally substituted hydrocarbyl or heteroatom containing hydrocarbyl; T is a bridging group of the general formula —(T′R 2 R 3 ) n —, wherein each T′ is independently selected from the group consisting of carbon and silicon, R 2 and R 3 are independently selected from the group consisting of hydrogen, halogen, optionally substituted alkyl, heteroalkyl, aryl, heteroaryl, alkoxy, aryloxy, silyl, boryl, phosphino, amino, alkylthio, arylthio, and combinations thereof, and n is 1 or 2, provided that two or more R 2 and/or R 3 groups may be joined together to form one or more optionally substituted ring systems, and that one or more T′ atoms may be involved in a double bond to a neighboring group and correspondingly be bonded to only a single R 2 or R 3 substituent; and J is an optionally substituted heterocyclic group containing a five-membered heterocycle, provided that the five-membered heterocycle contains at least two but no more than four heteroatoms, at least one of the heteroatoms being a nitrogen, phosphorus, oxygen, or sulfur in a ring position adjacent to the ring atom bonded to T; (b) a metal precursor or activated metal precursor including a metal selected from groups 3-6 and the lanthanide series of the periodic table of elements; and (c) optionally, at least one activator.