Patent ID: 7910760
Filing Date: 2011-03-22
Classification: B01J,C07F,C08F

Abstract:
1. A transition metal complex of the general formula (III): wherein M t is a group 3 to 12 element in a +2 to +6 oxidation state with between 1 to 4 additional ligands (anionic and/or neutral) coordinated, wherein R 1 and R 2 are hydrogen, halogen, alkoxy, or a hydrocarbon group containing between 1 to 12 carbon atoms; E is a group 16 element; Z is a direct bond between carbon atoms of the adjacent aromatic rings or a —CR 3 R 4 — or —SiR 3 R 4 — bridge between those carbon atoms, where R 3 and R 4 are hydrogen or a hydrocarbon groups with 1 to 10 carbons, R 5 , R 6 , R 7 and R 8 are hydrogen, halogen, alkoxy, or a hydrocarbon group containing between 1 to 10 carbon atoms and J 1 and J 2 are —NR 9 R 10 or —PR 9 R 10 , where R 9 is H or SiMe 3 group and R 10 is selected from the group consisting of alkyl, aryl, substituted aryl, heteroalkyl, and heteroaryl containing between 1 to 30 non-hydrogen atoms.