通过可控的配位驱动自组装实现了二乙烯基桥接金属超分子化合物的结构开关和磁学性质调制

时间:2019-03-21浏览:1437

作文题目:Structure Switching and Modulation of the Magnetic Properties in Diarylethene-Bridged Metallosupramolecular Compounds by Controlled Coordination-Driven Self-Assembly
作文编辑:Zhao-Yang Li*, Jing-Wei Dai, Marko Damjanovic, Takuya Shiga, Jin-Hua Wang, Jia Zhao, Hiroki Oshio, Masahiro Yamashita*, and Xian-He Bu*
发表期刊:Angew. Chem. Int. Ed. 2019, 58:4339-4344    [ pdf ]      


Abstract: We report three self-assembled iron complexes that comprised an anti-parallel open form (o-Lanti), a parallel open form  (o-Lsyn), and a closed form (c-L) of diarylethene conformers. Under kinetic control, FeII2(o-Lanti)3 was isolated, which exhibited a dinuclear structure with diamagnetic properties. Under light-irradiation control, FeII2(c-L)3 was prepared and exhibited paramagnetism and spin-crossover behaviour. Under thermodynamic control and in the presence of indispensable [FeIII(Tp*)(CN)3]-, FeII2(o-Lanti)3 and FeII2(c-L)3 transformed into tetranuclear FeIII2FeII2(o-Lsyn)2, which exhibited complete spin-crossover behaviour at T1/2=353 K.


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