title: Efficient synthesis and properties of novel near-infrared electrochromic anthraquinone imides.
abstract: An efficient synthesis of novel near-infrared electrochromic 6-substituted (NO2, Br) anthraquinone imides, i.e., 2a and 2b, was established. Bearing functional groups suitable for further structural modifications by nucleophilic substitution reaction and various metal-catalyzed coupling reactions (e.g., Suzuki coupling), 2a and 2b were easily transferred to 1a by reaction with 4-methoxyphenol and 1b by reaction with 4-hexyloxyphenylboronic acid, respectively. These new imides are electrochromic and absorb intensely in the near-infrared range of 700-1600 nm upon electrochemical reduction.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
authors.forename: Wenqiang
authors.initials: W
authors.lastname: Qiao
authors.forename: Jia
authors.initials: J
authors.lastname: Zheng
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Wang
authors.forename: Yijun
authors.initials: Y
authors.lastname: Zheng
authors.forename: Naiheng
authors.initials: N
authors.lastname: Song
authors.forename: Xinhua
authors.initials: X
authors.lastname: Wan
authors.forename: Zhi Yuan
authors.initials: ZY
authors.lastname: Wang