| abstract |
Provided is a charge transport material that is electrochemically stable and soluble in a solvent, and further, a composition for forming an organic electroluminescence device having high luminous efficiency and high driving stability, and use thereof An organic electroluminescent device is provided. A charge transport material comprising a compound having no symmetry axis and no symmetry point in the molecule, wherein all pyridine rings existing as partial structures in the molecule of the compound are represented by the following general formula (I): Charge transport material characterized by the above. (Shown in the general formula (I), R 1 to R 3 are each independently a phenyl group which may have a substituent. However, the R 1 and R 2, R 2 and R 3, R 3 R 1 is not the same because of different substituents or the presence or absence of a substituent, and the substituent of R 2 is not a group containing a pyridine ring.) [Selection figure] None |