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.
公式1的化合物可用于光电子器件中,其中R1和R2在每次出现时分别为H,C1-C20脂肪基,C3-C20芳香基或C3-C20环脂基;a是0-2之间的整数;b为1或2;c是0-4之间的整数;Ar1和Ar2分别为异
芳烃基。