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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Syntheses of mono and bimetallic cyamelurate polymers with reversible chromic behaviour
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Syntheses of mono and bimetallic cyamelurate polymers with reversible chromic behaviour

机译：用可逆的铬行为合成单体和双金属化学酰氨酸酯聚合物

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Ordered coordination polymers (CPs) have been an interesting class of materials for scientific and industrial research for the last few decades. However, their availability as well as certain economic and environmental limitations could slow down their use in many applications. Herein, we present room temperature synthesis in water of a series of CPs (four metal-organic polymers MOPs-(1-4) and three mixed metal-organic polymers MMOPs-(5-7)). All MMOPs were found to be isostructural to MOPs as determined by XRD. Remarkably, MOPs-(2 and 3) and MMOPs-(5-7) exhibit switchable chromic behaviour associated with reversible structural transformation which was facilitated by dehydration/rehydration or solvent exchange (MeOH/H2O) processes. Chromic behaviour and its mechanism were investigated using IR, solid-state UV-Vis, XRD, PXRD and TGA indicating the coordination/de-coordination of water molecules to be the key factor that influences the colour changes. These results render the potential application of MOPs and MMOPs as sensor materials.
机译：订购的协调聚合物（CPS）是过去几十年的科学和工业研究的有趣类别。但是，它们的可用性以及某些经济和环境限制可能会减缓它们在许多应用中的使用量。在此，我们在一系列CP的水中呈现室温合成（四种金属 - 有机聚合物MOPS-（1-4）和三种混合金属 - 有机聚合物MMOPS-（5-7））。发现所有MMOPS都被XRD确定为拖把的态度。值得注意的是，MOPS-（2和3）和MMOPS-（5-7）表现出与可逆结构转变相关的可切换铬行为，其通过脱水/再水化或溶剂交换（MeOH / H 2 O）方法促进。使用IR，固态UV-Vis，XRD，PXRD和TGA研究了铬的行为及其机制，表明水分子的协调/解开是影响颜色变化的关键因素。这些结果使MOP和MMOPS的潜在应用成为传感器材料。

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