Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 32, Pages 9192-9197Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201504584
Keywords
electrochemistry; memory; molecular device; molecular logic; ruthenium
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Funding
- National Natural Science Foundation of China [91227104, 21271176, 21472196, 21221002]
- National Basic Research 973 program of China [2011CB932301]
- Ministry of Science and Technology of China [2012YQ120060]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB 12010400]
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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. 15-20nm thick) with three electrochemical inputs and three NIR optical outputs that each displays three levels of signal intensity.
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