Novel Bisthienylethene Containing Ferrocenyl-Substituted Naphthalimide: A Photo- and Redox Multi-Addressable Molecular Switch

作者：Zhu, Weihong^*; Song, Liwen; Yang, Yuheng; Tian, He

来源：Chemistry - A European Journal, 2012, 18(42): 13388-13394.

DOI：10.1002/chem.201202189

• bisthienylethene
• fluorescence
• molecular switches
• photochromism
• redox chemistry

A new photochromic bisthienylethene system (BTE?NAFc) is reported in which the ferrocene unit (Fc) is incorporated into a naphthalimide chromophore as the central ethene bridging unit. The incorporated Fc unit in the photochromic system of BTE?NAFc has several effects on optical properties, such as fluorescence-modulation through photoinduced electron transfer (PET), a decrease in the photochromic cyclization quantum yield, and a selective two-step oxidation process. The ability to drive ring-opening and ring-closing reactions with a secondary redox-modulation provides increased functionality to the photochromic system. Based on these meaningful photo- and redox-modulation properties, five unprecedented multi-addressable states (BTE?NAFc, BTE?NAFc+, c-BTE?NAFc, c-BTE?NAFc+, and BTE+?NAFc+) and gated photochromism are successfully obtained within the unimolecular BTE platform, thus providing deeper insight into photochromic systems as multifunctional outputs.

• 出版日期2012-10
• 单位华东理工大学