| 主权项 |
1. An organic electroluminescence compound represented by the following formula 1: wherein L1 represents a single bond, a substituted or unsubstituted (C6-C30)arylene group, or a substituted or unsubstituted 3- to 30-membered heteroarylene group; Ar1 to Ar5 each independently represent CR10, C-L2-(L3)m-Ar1 or N, proviso that at least one of Ar1 to Ar5 represents C-L2-(L3)m-Ar1; L2 and L3 each independently represent a substituted or unsubstituted (C6-C30)arylene group, or a substituted or unsubstituted 3- to 30-membered heteroarylene group, R1, R2, R10, and Ar1 each independently represent hydrogen, deuterium, a halogen, a substituted or unsubstituted (C1-C30)alkyl group, a substituted or unsubstituted (C3-C30)cycloalkyl group, a substituted or unsubstituted 5- to 7-membered heterocycloalkyl group, a substituted or unsubstituted (C2-C30)alkenyl group, a substituted or unsubstituted (C2-C30)alkynyl group, a substituted or unsubstituted (C6-C30)aryl group, a substituted or unsubstituted 3- to 30-membered heteroaryl group, —NR11R12, —SiR13R14R15, —SR16, —OR17, a cyano group or a nitro group; R11 to R17 each independently represent hydrogen, deuterium, a halogen, a substituted or unsubstituted (C1-C30)alkyl group, a substituted or unsubstituted (C6-C30)aryl group, or a substituted or unsubstituted 3- to 30-membered heteroaryl group; a represents an integer of 1 to 6; where a is an integer of 2 or more, each of R1 is the same or different; b represents an integer of 1 to 4; where b is an integer of 2 or more, each of R2 is the same or different; m represents an integer of 1 or 2; where m is an integer of 2 or more, each of L3 is the same or different; the heteroarylene group, the heterocycloalkyl group and the heteroaryl group contain at least one hetero atom selected from the group consisting of B, N, O, S, P(═O), Si and P; proviso that R2 is not 2-carbazole group or 3-carbazole group. |
