Patent ID: 7413816

Claim:
An organometallic complex represented by the following general formula 2, wherein R 1 is an alkyl group, an aryl group, a substituted aryl group, a heterocyclic group or a substituted heterocyclic group, wherein R 2 is an alkyl group, an aryl group, a substituted aryl group, a heterocyclic group, or a substituted heterocyclic group, wherein each of R 3 , R 4 , R 5 , and R 6 is identical with each other or different from each other and is hydrogen, halogen, an alkyl group, an alkoxyl group, an aryl group, a substituted aryl group, a heterocyclic group, or a substituted heterocyclic group, wherein M is an element of Group 9 or an element of Group 10, wherein n is 2 when the M is the element of Group 9 or n is 1 when the M is the element of Group 10, and wherein L is any of monoanionic ligands shown by the following structure formulas 4 or 6: