Patent ID: 7868108

Claim:
A transition metal compound comprising a transition metal M and ligand L of the general structure: wherein R 1 is a C 1 -C 40 radical; R 2 is hydrogen or a C 1 -C 40 radical; R 1 and R 2 optionally form a ring system; and R 1 , R 2 , R 3 , and R 4 optionally and independently comprise a heteroatom selected from N, O, P, S, As or Sb; wherein R 3 and R 4 form a six-member ring and R 5 is selected from wherein R 6 and R 10 are independently hydrogen, C 1 -C 12 alkyls, C 6 -C 40 aryls, or C 2 -C 40 -heteroaromatic radicals containing 0, N, or S; R 7 and R 11 are independently C 1 -C 12 alkyls, C 6 -C 40 aryls, or C 2 -C 40 heteroaromatic radicals containing O, N, or S; R 8 and R 9 are independently hydrogen or a C 1 -C 40 radical; R 6 and R 7 optionally form a ring system; and R 10 and R 11 optionally form a ring system; and wherein the transition metal compound has the general structure of [LMX n L 1 h ] m , wherein M is Fe, Co or Ni; n is an integer from 1 to 4 m is an integer from 1 to 10, X are the same or different and are organic or inorganic radicals; two X radicals optionally form a divalent radical; L 1 is an uncharged ligand, and h is an integer from 0 to 4.