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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >An unusual double T5(2) water tape trapped in silver(i) coordination polymer hosts: Influence of the solvent on the assembly of Ag(i)-4,4′- bipyridine chains with trans-cyclohexanedicarboxylate and their luminescent properties
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An unusual double T5(2) water tape trapped in silver(i) coordination polymer hosts: Influence of the solvent on the assembly of Ag(i)-4,4′- bipyridine chains with trans-cyclohexanedicarboxylate and their luminescent properties

机译：在银（i）配位聚合物主体中捕获的一条异常的双T5（2）水带：溶剂对带有反式环己烷二羧酸酯的Ag（i）-4,4'-联吡啶链组装的影响及其发光性能

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In this paper, four silver(i) compounds, namely, {[Ag _4(bipy) _4(chda)]·2NO _3·10H _2O} _n (1), {[Ag _2(bipy) _2(chda)]·14H _2O} _n (2), {[Ag _2(bipy) _2(chda)] ·3EG·2H _2O} _n (3) and {[Ag _2(bipy) _2(chda)]·H _2chda} _n (4) (where bipy = 4,4′-bipyridine, H _2chda = trans-cyclohexane-dicarboxylate and EG = ethylene glycol), have been synthesized and characterized by single-crystal X-ray diffraction analyses. In all of these compounds, the Ag(i) centers are linked by bipy ligands to form 1D Ag(i)-bipy chain structures. The chda ~(2-) anions of compound 1 adopt a μ _4-coordination mode to connect the Ag(i)-bipy chains, forming a H-beam-like chain. In 2, the chda ~(2-) anions adopt a μ _2-coordination mode to connect the Ag(i)-bipy chains resulting in two distinct 2D brick wall-like layers. These layers are further stacked in an ?ABAB? fashion through interlayer π?π stacking interactions giving rise to a 3D framework consisting of quasi-rectangular channels, in which an unusual double T5(2) water tape is trapped. For 3 and 4, the chda ~(2-) anions show a similar μ _4-coordination mode to that of 1 and connect the Ag(i)-bipy chains to form 2D grid layers with identical compositions and connective topologies. The experimental studies show that the final structures are greatly influenced by the molar ratio of the components and the solvents, which can be rationally interpreted by the existence of various supramolecular interactions between the host and guest molecules within these compounds through a systematic structural comparison. Additionally, the thermal stability and luminescent properties of these compounds were also studied.
机译：本文中有四种银（i）化合物，即{[Ag _4（bipy）_4（chda）]·2NO _3·10H _2O} _n（1），{[Ag _2（bipy）_2（chda）]· 14H _2O} _n（2），{[Ag _2（bipy）_2（chda）]·3EG·2H _2O} _n（3）和{[Ag _2（bipy）_2（chda）]·H _2chda} _n（4 ）（其中Bipy = 4,4'-联吡啶，H _2chda =反式环己烷二羧酸酯，EG =乙二醇）已经合成，并通过单晶X射线衍射分析进行了表征。在所有这些化合物中，Ag（i）中心通过联吡啶配体连接形成一维Ag（i）-联吡啶链结构。化合物1的chda〜（2-）阴离子采用μ_4-配位模式连接Ag（i）-bipy链，形成H型束状链。在2中，chda〜（2-）阴离子采用μ_2配位模式连接Ag（i）-bipy链，从而产生两个不同的2D砖墙状层。这些层进一步堆叠在ABAB中。通过层间π？π堆叠交互作用的流行方式，产生了一个由准矩形通道组成的3D框架，其中捕获了一条不寻常的双T5（2）水带。对于3和4，chda〜（2-）阴离子显示出与1相似的μ_4-配位模式，并连接Ag（i）-bipy链形成具有相同组成和连接拓扑的2D网格层。实验研究表明，最终结构受组分和溶剂摩尔比的影响很大，可以通过系统的结构比较，合理地解释这些化合物中主体与客体分子之间存在各种超分子相互作用。另外，还研究了这些化合物的热稳定性和发光性能。

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