Patent ID: 7944597

Claim:
An electrochromic material represented by Formula 1 or 2: wherein R 1 and R 2 are each independently selected from the group consisting of hydrogen, halogen, CN, OH, COOH, C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C 2 -C 20 alkenyl, C 1 -C 20 alkoxy and C 5 -C 12 aryl, and wherein X is selected from the group consisting of halides, PF 6 − , BF 4 − , BH 4 − and CF 3 SO 3 − ; or wherein R 1 and R 2 are each independently selected from the group consisting of hydrogen, halogen, CN, OH, COOH, C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C 2 -C 20 alkenyl, C 1 -C 20 alkoxy and C 5 -C 12 aryl, wherein each X is selected from the group consisting of halides, PF 6 − , BF 4 − , BH 4 − and CF 3 SO 3 − , and wherein R 3 is selected from the group consisting of hydrogen, C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C 2 -C 20 alkenyl, C 1 -C 20 alkoxy, C 5 -C 12 aryl, C 5 -C 12 heteroaryl, carbazolyl, fluorenyl and spirofluorenyl.