The present invention relates to diphenyl amine derivatives having luminescent properties, and particularly to diphenyl amines substituted with various electron donating or {HEAD ~ electron} withdrawing {TAIL ~ groups} 
withdrawing
The present invention relates to diphenyl amine derivatives having luminescent properties , and particularly to diphenyl amines substituted with various electron donating or { HEAD ~ electron } withdrawing { TAIL ~ groups }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL