二茂铁基1,2,3-三唑化合物的电化学与热性质有机化学.pdfVIP

DOI: 10.6023/cjoc201502024 研究简报 有机化学 Chinese Journal of Organic Chemistry NOTE 二茂铁基1,2,3-三唑化合物的电化学与热性质 徐建伟 王绍辉 李 旸 赵海英* 李保国 边占喜 ( 内蒙古大学化学化工学院 内蒙古自治区精细有机合成重点实验室 呼和浩特 010021) 摘要 合成并表征了含有硝基(3a～3c)和氨基(4a～4c) 的两系列二茂铁 1,2,3-三唑化合物. 循环伏安实验中代表化合物 3b 与 4b 均展示准可逆的单电子氧化还原进程, 且相对于 3b, 化合物 4b 的氧化还原电位向阴极方向移动 17 mV 左右, 说明含有氨基的 4b 更易于氧化. 热性质研究表明, 含有硝基的系列化合物在升温或降温过程中发生了多晶相转变; 而 含有氨基的系列化合物随着烷基链的延长, 出现了晶体到介晶相的转变过程, 且介晶相温度范围可宽达 90 ℃. 这些研 究为此类化合物在功能材料方面的应用提供一定的理论依据. 关键词 二茂铁; 1,2,3-三唑; 电化学; 热性质 Electrochemical and Thermal Properties of Ferrocenyl 1,2,3-Triazole Xu, Jianwei Wang, Shaohui Li, Yang Zhao, Haiying* Li, Baoguo Bian, Zhanxi (Inner Mongolia Key Laboratory of Fine Organic Synthesis and College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021) Abstract Ferrocenyl 1,2,3-triazoles with nitro (3a～3c) or amino (4a～4c) were synthesized and characterized. The cyclic voltammogram investigations revealed that redox-active ferrocenyl groups of two series of compounds exhibited quasireversi- ble one-electron transfer processes. As compared to compound 3b, the potential for 4b with amino cathodically shifted 17 mV thereby suggesting easier oxidation by loss of an electron for the latter. Their thermal behaviors indicated that compounds 3a～ 3c were all non-mesomorphic, and showed crystal polymorphic phase transitions in the heating and cooling cycles. Whereas 4a～4c displayed liquid crystal behaviors over 90 ℃ mesophase range. The research is supposed to provide some theoretical basis for th