title: Tetracyanodibenzotetrathiafulvalene diimides: design, synthesis, and property study.
abstract: Tetracyanodibenzotetrathiafulvalene diimide (TCDBTTF-DI), an isomer of core-expanded naphthalene diimides bearing two 2-(1,3-dithiol-2-ylidene)malononitrile moieties (NDI-DTYM2), has been designed and synthesized to explore the effect of its isomeric structure on the optical and electrochemical properties of the materials. UV-vis spectra show that TCDBTTF-DI exhibits variation in its absorption peaks while maintaining a similar optical band gap to NDI-DTYM2. Electrochemical studies indicate that TCDBTTF-DI can not only accept but also lose electrons, in contrast to the solely electron-accepting behavior of NDI-DTYM2.
authors.affiliation: Laboratory of Materials Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhao
authors.forename: Zhongli
authors.initials: Z
authors.lastname: Wang
authors.forename: Yunbin
authors.initials: Y
authors.lastname: Hu
authors.forename: Xiaodi
authors.initials: X
authors.lastname: Yang
authors.forename: Hongxiang
authors.initials: H
authors.lastname: Li
authors.forename: Xike
authors.initials: X
authors.lastname: Gao
authors.forename: Daoben
authors.initials: D
authors.lastname: Zhu