2,4,6-TRI-(HETEROARYLPHENYL)-PYRIDINES AND ELECTRON-TRANSPORTING MATERIALS COMPRISING THEM

摘要

Compounds of formula 1 may be used in optoelectronic devices wherein R1 and R2 are, independently at each occurrence, H, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cyeioaiiphatic radical; a is an integer ranging from 0-2; b is 1 or 2; c is an integer ranging from 0-4; and Ar1 and Ar2; are independently heteroaryl.