Solvothermal Subcomponent Self-Assembly of Cubic Metal鈥揑midazolate Cages and Their Coordination Polymers

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• 作者：Dong Luo ; Xiao-Ping Zhou ; Dan Li
• 刊名：Inorganic Chemistry
• 出版年：2015
• 出版时间：November 16, 2015
• 年：2015
• 卷：54
• 期：22
• 页码：10822-10828
• 全文大小：495K
• ISSN：1520-510X

文摘

A series of Ni鈥搃midazolate cubic cages, one-dimensional and two-dimensional coordination polymers based on the cubic cages, have been prepared by solvothermal subcomponent self-assembly of 5-methyl-4-formylimidazole, m-xylylenediamine, and Ni^II salts with varied anions. These compounds have been characterized by single-crystal X-ray diffractions, elemental analysis, IR spectra, and powder X-ray diffractions. The formation of an oligomerized coordination cage or an infinite coordination polymer depends on the anions chosen. An oligomerized 8-nuclear Ni鈥搃midazolate cubic cage is formed when the anion Cl^{鈥?/sup>, Br鈥?/sup>, I鈥?/sup>, SCN鈥?/sup>, NO₂鈥?/sup>, or NO₃鈥?/sup> is utilized in the reactions, and a two-dimensional coordination polymer based on the Ni鈥搃midazolate cubic cage will be obtained when N₃鈥?/sup>, (CN)₂N鈥?/sup>, or (CN)₃C鈥?/sup> act as the anions. When only ClO₄鈥?/sup> or both ClO₄鈥?/sup> and [Ni(C₄N₂S₂)₂]2鈥?/sup> (C₄N₂S₂ = dimercaptomaleonitrile) as anions exist in the reaction mixture, a ladder-like one-dimensional coordination polymer based on the Ni鈥搃midazolate cubic cage and formate is formed unpredictably.}