Organic electroluminescence device

1. An organic electroluminescence device comprising:

an anode;

a cathode; and

at least one organic layer,

wherein

the at least one organic layer comprises a light-emitting layer being provided between the anode and the cathode and containing at least one light-emitting material, and

the at least one organic layer contains at least one compound represented by formula (I):

wherein

each of A 11 , A 12 , A 13 , A 14 and A 15 represents an N atom or C—R 11 , and the number of N atoms represented by A 11 to A 15 is an integer of 1 or 2;

R 11 represents a hydrogen atom or a substituent, and at least one of R 11 represents an aryl group or an aromatic heterocyclic group;

when a plurality of partial structures represented by the following formula (I-a) are present, each partial structure (I-a) may be the same with or different from every other (I-a); Q 11 represents a monocyclic aryl group or an aromatic heterocyclic group, and each Q 11 may be the same with or different from every other Q 11 , wherein when the aromatic heterocyclic group represented by Q 11 is substituted with a substituent, the substituent for the aromatic heterocyclic group represented by Q 11 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an acylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, an arylthio group, a heterocyclic thio group, a sulfonyl group, a sulfinyl group, a ureido group, a phosphoric acid amido group, a hydroxyl group, a mercapto group, a halogen atom, a cyano group, a sulfo group, a carboxyl group, a nitro group, a hydroxamic acid group, a sulfino group, a hydrazino group, an imino group, a silyl group, a silyloxy group, and a phosphoryl group, wherein the substituent for the aromatic heterocyclic group represented by Q 11 may further be substituted;

R 12 represents an alkyl group, and each R 12 may be the same with or different from every other R 12 ; and

each of m and l represents an integer of from 0 to 4, and n represents an integer of 1, 2 or 3, provided that n+m is an integer of 2 or more, and n+m+l is 4:

2. The organic electroluminescence device as claimed in claim 1 , wherein the compound represented by formula (I) is a compound represented by formula (II):

wherein

each of A 21 , A 22 , A 23 , A 24 and A 25 represents an N atom or C—R 21 , and the number of N atom represented by A 21 to A 25 is 1;

R 21 represents a hydrogen atom or a substituent, and at least one of R 21 represents an aryl group or an aromatic heterocyclic group;

when a plurality of partial structures represented by the following formula (II-a) are present, each partial structure (II-a) may be the same with or different from every other (II-a);

Q 21 represents a monocyclic aryl group or an aromatic heterocyclic group, and each Q 21 may be the same with or different from every other Q 21 , wherein when the aromatic heterocyclic group represented by Q 21 is substituted with a substituent, the substituent for the aromatic heterocyclic group represented by Q 21 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an acylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, an arylthio group, a heterocyclic thio group, a sulfonyl group, a sulfinyl group, a ureido group, a phosphoric acid amido group, a hydroxyl group, a mercapto group, a halogen atom, a cyano group, a sulfo group, a carboxyl group, a nitro group, a hydroxamic acid group, a sulfino group, a hydrazino group, an imino group, a silyl group, a silyloxy group, and a phosphoryl group, wherein the substituent for the aromatic heterocyclic group represented by Q 21 may further be substituted;

R 22 represents an alkyl group, and each R 22 may be the same with or different from every other R 22 ; and

each of m and l represents an integer of from 0 to 4, and n represents an integer of 1, 2 or 3 provided that n+m is an integer of 2 or more, and n+m+l is 4:

3. The organic electroluminescence device as claimed in claim 2 , wherein the compound represented by formula (II) is a compound represented by formula (III):

wherein

R 31 represents a hydrogen atom or a substituent, and at least one of R 31 represents an aryl group or an aromatic heterocyclic group;

when a plurality of partial structures represented by the following formula (III-a) are present, each partial structure (III-a) may be the same with or different from every other (III-a);

Q 31 represents a monocyclic aryl group or an aromatic heterocyclic group, and each Q 31 may be the same with or different from every other Q 31 , wherein when the aromatic heterocyclic group represented by Q 31 is substituted with a substituent, the substituent for the aromatic heterocyclic group represented by Q 31 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an acylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, an arylthio group, a heterocyclic thio group, a sulfonyl group, a sulfonyl group, a ureido group, a phosphoric acid amido group, a hydroxyl group, a mercapto group, a halogen atom, a cyano group, a sulfo group, a carboxyl group, a nitro group, a hydroxamic acid group, a sulfino group, a hydrazino group, an imino group, a silyl group, a silyloxy group, and a phosphoryl group, wherein the substituent for the aromatic heterocyclic group represented by Q 31 may further be substituted;

R 32 represents an alkyl group, and each R 32 may be the same with or different from every other R 32 ; and

each of m and l represents an integer of from 0 to 4, and n represents an integer of 1, 2 or 3, provided that n+m is an integer of 2 or more, and n+m+l is 4:

4. The organic electroluminescence device as claimed in claim 2 , wherein the compound represented by formula (II) is a compound represented by formula (IV):

wherein

R 41 represents a hydrogen atom or a substituent, and at least one of R 41 represents an aryl group or an aromatic heterocyclic group;

when a plurality of partial structures represented by the following formula (IV-a) are present, each partial structure (IV-a) may be the same with or different from every other (IV-a);

Q 41 represents a monocyclic aryl group or an aromatic heterocyclic group, and each Q 41 may be the same with or different from every other Q 41 , wherein when the aromatic heterocyclic group represented by Q 41 is substituted with a substituent, the substituent for the aromatic heterocyclic group represented by Q 41 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an acylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, an arylthio group, a heterocyclic thio group, a sulfonyl group, a sulfinyl group, a ureido group, a phosphoric acid amido group, a hydroxyl group, a mercapto group, a halogen atom, a cyano group, a sulfo group, a carboxyl group, a nitro group, a hydroxamic acid group, a sulfino group, a hydrazino group, an imino group, a silyl group, a silyloxy group, and a phosphoryl group, wherein the substituent for the aromatic heterocyclic group represented by Q 41 may further be substituted;

R 42 represents an alkyl group, and each R 42 may be the same with or different from every other R 42 ; and

each of m and 1 represents an integer of from 0 to 4, and n represents an integer of 1, 2 or 3, provided that n+m is an integer of 2 or more, and n+m+l is 4:

5. The organic electroluminescence device as claimed in claim 2 , wherein the compound represented by formula (II) is a compound represented by formula (V):

wherein

R 51 represents a hydrogen atom or a substituent, and at least one of R 51 represents an aryl group or an aromatic heterocyclic group;

when a plurality of partial structures represented by the following formula (V-a) are present, each partial structure (V-a) may be the same with or different from every other (V-a);

Q 51 represents a monocyclic aryl group or an aromatic heterocyclic group, and each Q 51 may be the same with or different from every other Q 51 , wherein when the aromatic heterocyclic group represented by Q 51 is substituted with a substituent, the substituent for the aromatic heterocyclic group represented by Q 51 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an amino group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, an acylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, an arylthio group, a heterocyclic thio group, a sulfonyl group, a sulfinyl group, a ureido group, a phosphoric acid amido group, a hydroxyl group, a mercapto group, a halogen atom, a cyano group, a sulfo group, a carboxyl group, a nitro group, a hydroxamic acid group, a sulfino group, a hydrazino group, an imino group, a silyl group, a silyloxy group, and a phosphoryl group, wherein the substituent for the aromatic heterocyclic group represented by Q 51 may further be substituted;

R 52 represents an alkyl group, and each R 52 may be the same with or different from every other R 52 ; and

each of m and l represents an integer of from 0 to 4, and n represents an integer of 1, 2 or 3, provided that n+m is an integer of 2 or more, and n+m+l is 4:

6. The organic electroluminescence device as claimed in claim 1 , wherein the compound represented by formula (I) has a glass transition temperature of 130° C. or more and 450° C. or less.

7. The organic electroluminescence device as claimed in claim 1 , wherein the compound represented by formula (I) has a lowest excitation triplet energy level of 65 kcal/mol (272.35 kJ/mol) or more and 95 kcal/mol (398.05 kJ/mol) or less.

8. The organic electroluminescence device as claimed in claim 1 , wherein the at least one light-emitting material comprises a phosphorescent material.

9. The organic electroluminescence device as claimed in claim 8 , wherein the phosphorescent material is an iridium complex or a platinum complex.

10. The organic electroluminescence device as claimed in claim 9 , wherein the platinum complex is a platinum complex represented by formula (C-1):

wherein

each of Q 1 , Q 2 , Q 3 and Q 4 independently represents a ligand to coordinate to Pt; and

each of L 1 , L 2 and L 3 independently represents a single bond or a divalent linking group.

11. The organic electroluminescence device as claimed in claim 1 , wherein the light-emitting layer contains the compound represented by formula (I).

12. The organic electroluminescence device as claimed in claim 1 , wherein the at least one organic layer further comprises at least one electron transporting layer being provided between the light-emitting layer and the cathode, and

the at least one electron transporting layer contains the compound represented by formula (I).