Synthesis of (thia)Calixarene-based exTTF Derivatives and Their Electron Transfers Towards p-Chloranil and C60 |
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| Authors: | ZHAO Bangtun CHEN Xiuhua MA Shuxiu ZHU Weimin |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, P. R. China;
2. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China |
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| Abstract: | Two novel (thia)calixarene-based exTTF derivatives(3a and 3b) were prepared by Mitsunobu reactions in toluene using diethyl azodicarboxylate(DEAD) and triphenylphosphine(PPh3) system. The cyclic voltammograms of compounds 3a and 3b were provided, and two electron-irreversible waves with redox potentials were observed. Meanwhile, the intermolecular electron transfer(ET) properties of both compounds 3a and 3b towards p-chloranil(Q) and C60 were investigated via UV-Vis and fluorescent spectroscopies, respectively. The results indicated that the introduced nonoxidable metal ions(Al3+, Pb2+, Sc3+) might promote the intermolecular ET from compounds 3a and 3b towards Q ensembles, whereas the effects of Sc3+ were the most impressive. Furthermore, the effects of the same metal ions(Al3+, Pb2+, Sc3+) added for compound 3b were greater than those for compound 3a. Additionally, the photoinduced intermolecular ET from compounds 3a and 3b towards C60 was observed. |
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| Keywords: | exTTF Calix[4]arene Thiacalix[4]arene p-Chloranil(Q) C60 Electron transfer |
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