| abstract |
A compound that has the structure according to Formula 1: n n n n n n n n n n as well as, devices and formulations containing the compound of Formula 1 are disclosed. In the compound of Formula 1:n X 1 , X 2 , X 3 , X 4 , X 5 , and X 6 are independently selected from the group consisting of C—R and N; each R is 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 acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and at least one R comprises a donor group with at least two electron donating nitrogens. |