α-Cyanoarylethene ferrocene based rod-shaped compounds, synthesis, self-assembly and redox-responsive properties
作者:Yuan Tao、Qing Chang、Wei Ding、Yue-Yu Sun、Tao Ma、Xiao-Hong Cheng
DOI:10.1016/j.jorganchem.2021.121729
日期:2021.4
the alkyl chain as well as the linking groups on the self-assembly properties of these compounds in bulk states and in organic solutions were investigated. In bulk sate, only the single tetradecyl chain compound with ester (-OOC-) link can show liquid crystalline property, while in organic solvents, such compounds can self-assemble into gels with interesting morphologies. Cyclic voltammetry (CV) and
一系列新型的基于α-氰基芳基二茂铁的杆状化合物,由联苯刚性核组成,并通过醚与多烷基链取代的苯单元(–OCH 2作为关键步骤,通过Suzuki偶联和Knoevenagel缩合反应制备了一个末端的-)或酯(-OOC-)链,并在另一末端通过α-氰基芳基乙烯与二茂铁单元连接。研究了烷基链的长度和数量以及连接基团对这些化合物在本体状态和有机溶液中的自组装性能的影响。在整体状态下,只有具有酯(-OOC-)键的十四烷基链化合物可以显示液晶特性,而在有机溶剂中,此类化合物可以自组装成具有有趣形态的凝胶。循环伏安法(CV)和紫外可见(UV-vis)吸收研究证明了所制备化合物的氧化还原特性。最有趣的是,观察到含有这种化合物(1-5%)的PEG(聚乙二醇)薄膜对氧化还原敏感。制备的膜的颜色可以通过氧化还原刺激来调节,表明这种PEG膜具有用于高密度信息存储的潜力。