Organic electroluminescence device and novel organic compound containing silicon substituent

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 first organic layer which is 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

Q 1 represents an aromatic heterocyclic ring;

each of R 1 , R 2 , R 3 and R 4 independently represents a hydrogen atom or a substituent; and

each of R 11 , R 12 and R 13 independently represents an alkyl group, an aryl group, or an aromatic heterocyclic group, provided that at least one of R 11 , R 12 and R 13 represents an aryl group or an aromatic heterocyclic group.

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

Q 2 represents a nitrogen-containing aromatic heterocyclic ring;

each of R 1 , R 2 , R 3 and R 4 independently represents a hydrogen atom or a substituent; and

each of R 11 , R 12 and R 13 independently represents an alkyl group, an aryl group, or an aromatic heterocyclic group, provided that at least one of R 11 , R 12 and R 13 represents an aryl group or an aromatic heterocyclic group.

3. The organic electroluminescence device as claimed in claim 1 , wherein

the light-emitting layer contains the compound represented by formula (I).

4. The organic electroluminescence device as claimed in claim 1 , wherein

the at least one organic layer further comprises a second organic layer being provided between the light-emitting layer and the cathode, and

the second organic layer contains the compound represented by formula (I).

5. The organic electroluminescence device as claimed in claim 1 , wherein

the at least one light-emitting material comprises a phosphorescent material.

6. The organic electroluminescence device as claimed in claim 1 , wherein

the at least one light-emitting material comprises a platinum complex or an iridium complex.

7. The organic electroluminescence device as claimed in claim 6 , wherein

the platinum complex is a platinum complex having a tridentate or tetradentate ligand.

8. The organic electroluminescence device as claimed in claim 7 , wherein

the platinum complex is represented by the following 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.

9. A compound represented by the following formula (III);

wherein

each of R 1 , R 2 , R 3 and R 4 independently represents a hydrogen atom or a substituent;

each of R 11 , R 12 and R 13 independently represents an alkyl group, an aryl group, or an aromatic heterocyclic group, provided that at least one of R 11 , R 12 and R 13 represents an aryl group or an aromatic heterocyclic group; and

each of R 31 , R 32 , R 33 and R 34 independently represents a hydrogen atom or a substituent.

10. A compound represented by the following formula (IV):

wherein

each of R 1 , R 2 , R 3 and R 4 independently represents a hydrogen atom or a substituent;

each of R 11 , R 12 and R 13 independently represents an alkyl group, an aryl group, or an aromatic heterocyclic group, provided that at least one of R 11 , R 12 and R 13 represents an aryl group or an aromatic heterocyclic group;

R 41 represents an alkyl group, an aryl group, or an aromatic heterocyclic group; and

each of R 42 and R 43 independently represents a hydrogen atom or a substituent.