| 主权项 |
1. A material for organic electroluminescence device represented by formula (I): wherein: each of A1 and A2 independently represents a single bond, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms; each of B1 and B2 independently represents a single bond, a substituted or unsubstituted divalent aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms; each of X1 to X8 and Y1 to Y8 independently represents N (nitrogen group) or CRa (C: carbon group), provided that when adjacent two of X1 to X8 and Y1 to Y8 are both CRa, Ra groups in adjacent CRa groups may be bonded to each other to form a ring; Ra independently represents a hydrogen atom, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted silyl group, or a halogen atom, and when two or more Ra groups exist, the Ra groups may be the same or different; L1 represents a single bond, a substituted or unsubstituted divalent aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms; n represents an integer of 0 to 3, provided that when n=0, L1 represents a single bond, and one of X5 to X8 is directly bonded to one of Y1 to Y8 and A2; one of X5 to X8 is bonded to one of Y1 to Y8 and A2 via L1 or directly; each of sa and ta independently represents an integer of 0 to 5, each of sb, tb and tc independently represents an integer of 0 to 4, and sc represents an integer of 0 to 3, provided that sa+sb+sc+ta+tb+tc represents an integer of 1 to 5; when sa represents 1 to 5, A1 is boned to Q1 of (Q1)sa; when sb represents 1 to 4, at least one of X1 to X4 is bonded to B1 of (B1-Q1)sb or Q1 when B1 represents a single bond; when sc represents 1 to 3, at least one of X5 to X8 is bonded to B1 of (B1-Q1)sc or Q1 when B1 represents a single bond; when ta represents 1 to 5, A2 is bonded to Q2 of (Q2)ta; when tb represents 1 to 4, at least one of Y5 to Y8 is bonded to B2 of (B2-Q2)tb or Q2 when B2 represents a single bond; when tc represents 1 to 4, at least one of Y1 to Y4 is bonded to B2 of (B2-Q2)tc or Q2 when B2 represents a single bond; each of Q1 and Q2 independently represents -Az-Wq; q represents an integer of 1 to 4; when two or more Q1 groups exist, the Q1 groups may be the same or different, and when two or more Q2 groups exist, the Q2 groups may be the same or different; Az represents a q+1 valent residue of a ring represented by formula (Z): wherein: each of Z1 to Z5 independently represents a nitrogen group or CRb, wherein Rb is as defined above with respect to Ra, provided that when adjacent two of Z1 to Z5 are both CRb, Rb groups of adjacent CRb groups may be boned to each other to form a ring; when two or more Rb groups exist, the Rb groups may be the same or different; when two or more Az groups exist, the Az groups may be the same or different; W represents a substituent X, a non-fused aromatic hydrocarbon group having 6 to 15 ring carbon atoms substituted with a substituent X, a fused aromatic hydrocarbon group having 12 to 30 ring carbon atoms substituted with a substituent X, or a heterocyclic group having 5 to 30 ring atoms substituted with a substituent X, provided that the aromatic hydrocarbon group having 6 to 15 ring carbon atoms substituted with a substituent X, the fused aromatic hydrocarbon group having 12 to 30 ring carbon atoms substituted with a substituent X, and the heterocyclic group having 5 to 30 ring atoms substituted with a substituent X may have a substituent other than the substituent X; the substituent X represents an electron-withdrawing group, provided that a cyano group is excluded; and when two or more W groups exist, the W groups may be the same or different. |
