DIARYLAMINE-BASED COMPOUND, CHARGE TRANSPORTING MATERIAL, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT AND ORGANIC ELECTROLUMINESCENT ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a compound having excellent electron-transporting ability and hole-blocking ability, and suitably usable as a material for a hole-blocking layer of an organic electroluminescent element. SOLUTION: The diarylamine-based compound is represented by general formula (1) (wherein, Ar1to Ar4are each an aromatic hydrocarbon group substituted with a monovalent electron-attracting group having a Hammett substituent constantσpwithin a range of 0.00<σp<0.90, a monovalent aromatic heterocyclic group, or a monovalent group substituted with either of the above groups; Z is a divalent linking group satisfying either of containing -CO-, -SO2- or a divalent aromatic heterocyclic group, or having an electron-attracting group having a Hammett substituent constantσpwithin a range of 0.00<σp<0.90, or a monovalent aromatic heterocyclic group). COPYRIGHT: (C)2005,JPO&NCIPI