Structure and electronic properties of quinone dimers connected with acetylene and diacetylene linkages |
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| Authors: | Naoto Hayashi Takahiro Ohnuma Hiroyuki Higuchi |
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| Institution: | a Graduate School of Science and Engineering, University of Toyama, Gofuku, Toyama 9308555, Japan
b Graduate School of Engineering, Kyoto University, Katsura, Kyoto 6158510, Japan |
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| Abstract: | Quinone dimers connected with acetylene (QAQ) and diacetylene linkages (QAAQ) have been synthesized and their structure and electronic properties studied. X-ray analysis, DFT calculations, and UV-vis measurements showed that, unlike directly connected quinone dimers (QQ), they had planar and thus efficiently extended π conjugation systems. The respective reduction potentials of QAQ and QAAQ were considerably raised, and QAQ thereby behaved as a mild oxidizing agent. |
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