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A Step-by-Step Assembly of a 3D Coordination Polymer in the Solid-State by Desolvation and [2+2] Cycloaddition Reactions

机译:通过去溶剂化和[2 + 2]环加成反应分步组装固态3D配位聚合物

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摘要

Two solid-state structural transformations that occur in a stepwise and a controlled manner are described. A combination of desolvation and cycloaddition reactions has been employed to synthesise a 3D coordination polymer (CP) from 1D CP [Cd(bdc)(4-spy)(2)(H2O)]2H(2)O2DMF (bdc=1,4-benzenedicarboxylate, 4-spy=4-styrylpyridine) presumably via a 2D layered structure, [Cd-2(bdc)(2)(4-spy)(4)]. In the absence of single crystals to follow the course of the photocycloaddition reaction, thermogravimetry, XAFS and NOESY NMR experiments were used to propose the formation of layered and pillared layered structures. Further, the present strategy enables us to synthesise new multidimensional architectures that are otherwise inaccessible by the self-assembly process.
机译:描述了以逐步和受控方式发生的两个固态结构转变。脱溶剂和环加成反应的组合已用于从1D CP [Cd(bdc)(4-spy)(2)(H2O)] 2H(2)O2DMF(bdc = 1,4)合成3D配位聚合物(CP) -苯二羧酸酯,4-spy = 4-苯乙烯基吡啶)大概是通过2D分层结构[Cd-2(bdc)(2)(4-spy)(4)]形成的。在没有单晶跟随光环加成反应过程的情况下,热重分析,XAFS和NOESY NMR实验被用来提出层状和柱状分层结构的形成。此外,本策略使我们能够合成新的多维体系结构,否则自组装过程将无法访问这些多维体系结构。

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