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合成并表征了含有苯环(3a~3d)和萘环(3e~3h)的两系列二茂铁查尔酮衍生物.这些化合物具有较好的紫外可见吸收性质.循环伏安实验中代表化合物3b与3f均展示可逆的单电子氧化还原进程,且萘环取代苯环对二茂铁的氧化还原性质未产生影响.与二茂铁相比,二茂铁查尔酮衍生物难失去电子,稳定性增加.热性质研究表明,两系列化合物均在250~260℃左右开始降解,对于同一系列化合物3a~3d或3e~3h,随着烷基链的增加,熔点都出现下降趋势.当分子刚性部分以苯环为主时,随着烷基链的加长,第一次升温中发生了不稳定的多晶相转变;当分子含有萘环时,分子熔点升高,此时延长烷基链对晶相的稳定性影响不大.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.
Two series of ferrocene chalcone derivatives containing benzene ring (3a ~ 3d) and naphthalene ring (3e ~ 3h) were synthesized and characterized. These compounds have good UV-vis absorption properties. In cyclic voltammetry, 3b and 3f both demonstrated a reversible one-electron redox process, and the naphthalene ring-substituted benzene ring had no effect on the redox properties of ferrocene. Compared with ferrocene, the ferrocenechalcone derivative lost its electron- The results of thermal properties show that both compounds begin to degrade at about 250-260 ℃, and the melting points decrease with the increase of alkyl chain in the same series of compounds at 3a ~ 3d or 3e ~ 3h. When the rigid part is mainly benzene ring, with the increase of alkyl chain, the unstable polycrystalline phase transition occurs in the first temperature rising. When the molecule contains naphthalene ring, the molecular melting point increases, Has little effect on the stability of the crystalline phase.These studies provide some theoretical basis for the application of these compounds in functional materials.