State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
Dalton Trans. 2019 Oct 14;48(40):15121-15126. doi: 10.1039/c9dt02980j.
A metal complex nanosheet was synthesized by the liquid-liquid interface self-assembly method from a star-shaped ligand of tris[4-(4'-2,2':6',2''-terpyridyl)-phenyl]amine in organic solvents and metal ion Fe(ii) in water solution. The as-prepared nanosheet possessed excessively smooth morphology with a thickness of hundreds of nanometers. Adhering to an ITO glass, the nanosheet showed noticeable electrochromism from purplish red at 0 V to orange-yellow at 1.4 V and green at 1.6 V. Besides, the nanosheet exhibited outstanding stability with the optical contrast maintained at almost 100% of its original electrochemical activity over 500 cycles. The liquid-liquid interface self-assembly method was proven to be promising to prepare a polymeric metal complex for potential electrochromic applications.
一种金属配合物纳米片通过液-液界面自组装法由三[4-(4'-2,2':6',2''-三联吡啶)-苯基]胺的星型配体在有机溶剂中与金属离子 Fe(ii)在水溶液中合成。所制备的纳米片具有非常光滑的形貌，厚度为数百纳米。附着在 ITO 玻璃上，纳米片在 0 V 时呈现出从紫红色到 1.4 V 时的橙黄色到 1.6 V 时的绿色的显著电致变色。此外，纳米片表现出出色的稳定性，在 500 次循环中，其光学对比度几乎保持在其原始电化学活性的 100%。液-液界面自组装法被证明是一种很有前途的制备聚合金属配合物的方法，可用于潜在的电致变色应用。
