Patent ID: 7648777

Claim:
A compound having Formula 1: wherein each of R 1 through R 8 and R 1 ′ through R 8 ′ is independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted amino group, a cyano group, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 arylalkyl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroaryl group, a substituted or unsubstituted C2-C30 heteroarylalkyl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C5-C20 cycloalkyl group, a substituted or unsubstituted C5-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C30 alkyl ester group, and a substituted or unsubstituted C6-C30 aryl ester group; X is Se; and Y is N or P.