Materials for light emitting devices consisting of novel compounds and light emitting devices using the same

1. A light emitting device comprising a light emitting layer or a plurality of thin organic compound layers containing a light emitting layer formed between a pair of electrodes, wherein at least one layer is a layer containing at least one compound represented by the following formula (IA):

wherein R 11 , R 12 and R 13 each represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group or a heterocyclic group; L 1 is selected from the group consisting of a single bond, alkylene, alkenylene, alkynylene, arylene and a divalent aromatic heterocyclic group selected from the group consisting of:

R 11 and R 12 , R 11 and L 1 and R 12 and L 1 may each combine with each other to form a ring when possible; R 14 , R 15 , R 16 and R 17 each represents a hydrogen atom or a substituent; and R 13 to R 17 may each combine with each of R 11 to R 17 or L 1 to form a ring when possible.

2. The light emitting device of claim 1 , further comprising a polymer in the at least one layer.

3. The light emitting device of claim 1 , wherein R 11 and R 12 combine with each other to form a 5- to 7-membered ring with N.

4. The light emitting device of claim 3 , wherein the 5- to 7-membered ring with N is selected from the group consisting of a pyrrole, azepine, piperidine, pyrrolidine, a piperazine, morpholine, thiomorpholine and hexamethyleneimine.

5. The light emitting device of claim 1 , wherein L 1 is an arylene or divalent aromatic heterocyclic group.

6. The light emitting device of claim 1 , wherein R 13 represents an alkyl, aryl or aromatic heterocyclic group.

7. The light emitting device of claim 1 , wherein R 14 , R 15 , R 16 and R 17 each represents a hydrogen, alkyl, alkenyl, alkynyl, aryl, alkoxy, aryloxy, acyl, halogen, cyano, heterocyclic or silyl.

8. The light emitting device of claim 7 , wherein R 14 , R 15 , R 16 and R 17 each represents a hydrogen, alkyl, aryl, or heterocyclic.

9. A compound represented by the following formula (IIA):

wherein R 13 represents an aliphatic hydrocarbon group, an aryl group or a heterocyclic group; L 1 represents a single bond, alkenylene, alkynylene, arylene or a divalent aromatic heterocyclic group Q represents an atomic group necessary for forming a 5-, 6- or 7-membered ring with N; R 14 , R 15 , R 16 and R 17 each represents a hydrogen atom or a substituent; and R 14 , R 15 , R 16 and R 17 may each combine with each of R 14 to R 17 , L 1 or the atomic group Q to form a ring.

10. The compound of claim 9 , wherein the 5- to 7-membered ring with N is selected from the group consisting of a pyrrole, azepine, piperidine, pyrrolidine, a piperazine, morpholine, thiomorpholine and hexamethyleneimine.

11. The compound of claim 10 , wherein the 5- to 7-membered ring with N is a pyrrole or azepine.

12. The compound of claim 10 , wherein L 1 is an arylene or divalent aromatic heterocyclic group.

13. The compound of claim 9 , wherein R 13 represents an alkyl, aryl or aromatic heterocyclic group.

14. The compound of claim 13 , wherein R 13 represents an aryl or aromatic heterocyclic group.

15. The compound of claim 9 , wherein R 14 , R 15 , R 16 and R 17 each represents a hydrogen, alkyl, alkenyl, alkynyl, aryl, alkoxy, aryloxy, acyl, halogen, cyano, heterocyclic or silyl.

16. The compound of claim 15 , wherein R 14 , R 15 , R 16 and R 17 each represents a hydrogen, alkyl, aryl, or heterocyclic.

17. The compound of claim 16 , wherein R 14 , R 15 , R 16 and R 17 each represents a hydrogen.

18. The compound of claim 9 , wherein L 1 is a divalent aromatic heterocyclic group selected from the group consisting of: