Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China.
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, China.
J Am Chem Soc. 2017 Oct 18;139(41):14364-14367. doi: 10.1021/jacs.7b07965. Epub 2017 Oct 10.
We demonstrate here the synthesis of a novel class of metallo-supramolecular polymers with shackled structure, via the coordination of cyclic di(bis-terpyridine-triphenyl ether ester) ligands with ruthenium(II) ions. The constraint from the ring topology via the shackling of ligands provides novel properties to these metallo-supramolecular polymers, including the formation of dendritic crystals, red-shift of absorption bands in the UV-vis spectra from interchain charge-transfer transitions, and a typical flash-type memory behavior.
我们在此展示了一类新型的金属超分子聚合物的合成，该聚合物具有束缚结构，是通过环状双（双（2,2'-联吡啶-4,4'-二羧酸酯）三苯醚）配体与钌（II）离子的配位作用实现的。通过配体的束缚作用，环状拓扑结构为这些金属超分子聚合物提供了新的性质，包括树枝状晶体的形成、紫外-可见光谱中从链间电荷转移跃迁的吸收带的红移，以及典型的闪存型记忆行为。
