Patent ID: 7799878

Claim:
A dinuclear transition metal compound represented by Formula 1: where R is each independently a hydrogen atom, C1-C11 alkyl, or substituted or unsubstituted aryl, wherein when A is oxygen or sulfur, z is 0, and when A is nitrogen, z is 1; R 1 is each independently a hydrogen atom, C1-C12 alkyl, substituted or unsubstituted arylalkyl or substituted or unsubstituted aryl; R 2 is each independently a hydrogen atom, substituted or unsubstituted aryl, C1-C11 alkyl, or a halogen atom, or can be a substituted or unsubstituted hydrocarbyl which can form an aromatic or nonaromatic carbocyclic ring together with R 1 ; R 3 is a hydrogen atom; R 4 is each independently a hydrogen atom, C1-C11 alkyl, or a substituted or unsubstituted aryl, or can be a substituted or unsubstituted hydrocarbyl which can form a nonaromatic carbocyclic ring together with R 3 ; n is 1; when n is 1, R 5 is unsubstituted or substituted aryl, C1-C12 alkyl, a hydrogen atom, or a halogen atom; L is each independently a coordination ligand selected from triphenylphosphine, tri(C1-C6 alkyl)phosphine, tricycloalkyl phosphine, diphenyl alkyl phosphine, dialkylphenylphosphine, triphenoxyphosphine, trialkylamine, C2-20 alkene, halogen, ester, substituted C2-C4 alkene, C1-C4 alkoxy, pyridine, di(C1-C3 alkyl)ether, tetrahydrofurane, and nitrile; X is each independently an electron acceptor group selected from a hydrogen atom, NO 2 , halogen, sulfonate (SO 3 − ), sulfonyl ester (SO 2 R), carboxyl (COO − ), perfluoroalkyl, and carboxylic ester; M is each independently a Group VI, VII or VIII transition metal selected from Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt; A is each independently oxygen, nitrogen, or sulfur; and B is a covalent bridging group connecting two nitrogen atoms and is carbylene group, a silane group, a disilane group, substituted or unsubstituted C1-C60 hydrocarbylene group, or a substituted or unsubstituted C1-C60 heterohydrocarbylene group including Group 4B, 5B, or 6B atom, wherein, a substituent of the substituted arylalkyl, aryl, allyl, alkene, hydrocarbylene, or heterohydrocarbylene is each independently a C1-C4 alkyl group, a perfluoroalkyl group, a nitro group, a sulfonate group, a halogen group, an arylalkyl group, a siloxyl group (—OSiE 3 ) where E is phenyl or C1-C4 alkyl, or a hydrocarbyl-terminated oxyhydrocarbylene group (-(GO) z R 7 ) where G is each independently a C1-C4 alkylene group or arylene group, O is oxygen, R 7 is a C1-C11 hydrocarbyl group, and z is an integer from 1 to 4.