An organic compound having excellent heat resistance, an excellent
amorphous nature, an excellent ability to transport charges, highly
excited singlet and triplet states, and excellent solubility in an
organic solvent is an organic compound represented by Formula (I):
##STR00001## wherein Ar.sup.1 represents an optionally-substituted
aromatic hydrocarbon group, an optionally-substituted aromatic
heterocyclic group, or an optionally-substituted alkyl group; Ar.sup.2
represents an optionally-substituted aromatic hydrocarbon group or an
optionally-substituted aromatic heterocyclic group; R.sup.1 and R.sup.2
each represent a hydrogen atom or a substituent, and R.sup.1 and R.sup.2
may be bonded to each other to form a ring; and Q is represented by
Formula (I-1) or (I-2):
##STR00002## wherein Ar.sup.3 to Ar.sup.5 each represent an
optionally-substituted aromatic hydrocarbon group or an
optionally-substituted aromatic heterocyclic group, and Ar.sup.3 and
Ar.sup.4 may be bonded to each other to form a ring.