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 ...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 in- troduced nonoxidable metal ions（Al^3＋, Pb^2＋, Sc^3＋） might promote the intermolecular ET from compounds 3a and 3b towards Q ensembles, whereas the effects of Sc^3＋ were the most impressive. Furthermore, the effects of the same metal ions（Al^3＋, Pb^2＋, Sc^3＋） added for compound 3b were greater than those for compound 3a. Additionally, the pho- toinduced intermolecular ET from compounds 3a and 3b towards C60 was observed.展开更多
基金Supported by the National Natural Science Foundation of China（Nos.21172105, 20872058）.
文摘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 in- troduced nonoxidable metal ions（Al^3＋, Pb^2＋, Sc^3＋） might promote the intermolecular ET from compounds 3a and 3b towards Q ensembles, whereas the effects of Sc^3＋ were the most impressive. Furthermore, the effects of the same metal ions（Al^3＋, Pb^2＋, Sc^3＋） added for compound 3b were greater than those for compound 3a. Additionally, the pho- toinduced intermolecular ET from compounds 3a and 3b towards C60 was observed.
