| abstract |
A compound according to a formula I, devices incorporating the same, and formulations including the same are described. The compound according to the formula I can have the structure n n n n n n n n n n wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 each represent mono, di, tri, tetra substitutions, or no substitution, R 9 represents mono, di, tri substitutions, or no substitution, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 9 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acid, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof. A 1 , A 2 , A 3 , A 4 , A 5 , and A 6 are each independently selected from N or C, where at least one of A 1 to A 6 is N, and n is an integer from 1 to 20. |