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A Molecular Platform for Multistate Near‐Infrared Electrochromism and Flip‐Flop, Flip‐Flap‐Flop, and Ternary Memory
Author(s) -
Cui BinBin,
Tang JianHong,
Yao Jiannian,
Zhong YuWu
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201504584
Subject(s) - electrochromism , flip flop , ternary operation , absorbance , redox , infrared , chemistry , materials science , electrochemistry , photochemistry , electrode , optoelectronics , optics , inorganic chemistry , computer science , physics , cmos , chromatography , programming language
A diruthenium complex with a redox‐active amine bridge has been designed, synthesized, and studied by single‐crystal X‐ray analysis and DFT and TDDFT calculations. It shows three well‐separated redox processes with exclusive near‐infrared (NIR) absorbance at each redox state. The electropolymerized film of a related vinyl‐functionalized complex displays multistate NIR electrochromism with low operational potential, good contrast ratio, and long retention time. Flip‐flop, flip‐flap‐flop, and ternary memories have been realized by using the obtained film (ca. 15–20 nm thick) with three electrochemical inputs and three NIR optical outputs that each displays three levels of signal intensity.