| 主权项 |
1. A light emitting material comprising a compound represented by the following general formula (1): wherein in the general formula (1), X represents an oxygen atom or a sulfur atom; and R1 to R8 each independently represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 each independently represent a group represented by any one of the following general formulae (2) to (6), and R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, and R7 and R8 each may be bonded to each other to form a cyclic structure,wherein in the general formulae (2) to (6), L20, L30, L40, L50 and L60 each independently represent a single bond or a divalent linking group, and the group represented by any one of the general formulae (2) to (6) is bonded to the cyclic structure of the general formula (1) through L20, L30, L40, L50 or L60; and R21 to R28, R31 to R38, R3a, R3b, R41 to R48, R4a, R51 to R58, and R61 to R68 each independently represent a hydrogen atom or a substituent, provided that R21 and R22, R22 and R23, R23 and R24, R24 and R25, R25 and R26, R26 and R27, R27 and R28, R31 and R32, R32 and R33, R33 and R34, R35 and R36, R36 and R37, R37 and R38, R3a and R3b, R41 and R42, R42 and R43, R43 and R44, R45 and R46, R46 and R47, R47 and R48, R51 and R52, R52 and R53, R53 and R54, R55 and R56, R56 and R57, R57 and R58, R61 and R62, R62 and R63, R63 and R64, R65 and R66, R66 and R67, and R67 and R68 each may be bonded to each other to form a cyclic structure. |
