ORGANIC ELECTROLUMINESCENT DEVICE
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.