Patent ID: 8586201

Claim:
A light-emitting material comprising a compound represented by a following formula (III): wherein Z 3 represents an atomic group for forming a nitrogen-containing heteroaryl group or a nitrogen-containing heterocycloalkenyl group; Y represents an atomic group for forming pyrroline, pyrrole, indole, isothiazole, oxazole, isoxazole or 1,2,3-triazole; each of R 3 and R 4 represents a hydrogen atom or a substituent; R 5 represents a C 1 -C 6 alkyl group; R 6 represents an electron-withdrawing group; R 7 represents an aryl group or a C 1 -C 20 alkyl group; R 8 represents an alkyl group or a hydrogen; m is 1 or 2; c is an integer of from 0 to 2; and d is 0 or any positive integer depending upon a size of the Z 3 atomic group.