Organic electroluminescent device

Abstract

An organic electroluminescent device, which comprises: a pair of electrodes; and an organic compound layer including a light-emitting layer between the pair of electrodes, wherein the organic compound layer comprises a compound represented by formula (I): wherein Z 1 , Z 2 , Z 3 and Z 4 each independently represents an atom selected from the group consisting of carbon, nitrogen, sulfur and oxygen and necessary for forming an unsaturated 6-membered ring skeleton, the atom may have a hydrogen atom or a substituent; a bond in the unsaturated 6-membered ring indicates a single bond or a double bond; and R 1 represents a substituent.

1 . An organic electroluminescent device, which comprises:
 a pair of electrodes; and   an organic compound layer including a light-emitting layer between the pair of electrodes,   wherein the organic compound layer comprises a compound represented by formula (VII):   
       
         
           
           
               
               
           
         
         wherein R 50 , R 51 , R 52 , R 53  and R 54  each independently represents a hydrogen atom or a substituent, when R 50 , R 51 , R 52 , R 53  and R 54  each represents a substituent, the substituent may further have a substituent, but pairs of R 50  and R 51 , R 51  and R 52 , R 52  and R 53 , and R 53  and R 54 , each does not combine to form a condensed ring; 
         R 26 , R 27 , R 28 , R 29 , R 30 , R 31 , R 32  and R 33  each independently represents a hydrogen atom or a substituent, when R 26 , R 27 , R 28 , R 29 , R 30 , R 31 , R 32  and R 33  each represents a substituent, the substituent may further have a substituent, but pairs of R 26  and R 27 , R 27  and R 28 , R 28  and R 29 , R 30  and R 31 , R 31  and R 32 , and R 32  and R 33 , each does not combine to form a condensed ring; and 
         R 46  and R 47  each independently represents a hydrogen atom or a substituent, when R 46  and R 47  each represents a substituent, the substituent may further have a substituent, but pairs of R 46  and R 33 , and R 47  and R 26 , each does not combine to form a condensed ring.