Cyclopentadithiophene (CPDT) dimer dication: bipolaron model for quaterthiophenes |
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| Authors: | Kozaki M Yonezawa Y Okada K |
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| Institution: | Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumuyoshi-ku, Japan. |
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| Abstract: | structure: see text] Cyclopentadithiophene (CPDT) dimers in which both 3,3' and 4' ',3' " positions were bridged with 1,3-dioxalane, carbonyl, or dicyanovinylidene were prepared. These compounds have small HOMO-LUMO gaps (1.03-2.25 eV). The electrochemical oxidation of a dicyanovinylidene-bridged CPDT dimer gave a dication that had a quinoid-like structure. |
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