The impact of halogen ions on the guest dependent spin crossover behaviour and porosity of Co(II) one-dimensional coordination polymers [CoX2(4′-(4-pyridyl)-2,2′:6′,2′′-terpyridine)] (X = Cl and Br)
The impact of halogen ions on the guest dependent spin crossover behaviour and porosity of Co(II) one-dimensional coordination polymers [CoX2(4′-(4-pyridyl)-2,2′:6′,2′′-terpyridine)] (X = Cl and Br)
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DOI：
10.1039/c5tc00864f
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发表时间：
2015-07
影响因子：
6.4
通讯作者：
Ryo Ohtani;Kodai Shimayama;A. Mishima;M. Ohba;Ryuta Ishikawa;S. Kawata;Masaaki Nakamura;L. Lindoy;S. Hayami
中科院分区：
文献类型：
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作者：
Ryo Ohtani;Kodai Shimayama;A. Mishima;M. Ohba;Ryuta Ishikawa;S. Kawata;Masaaki Nakamura;L. Lindoy;S. Hayami
离散的钴（II）自旋交叉（SCO）化合物在构建高灵敏度分子器件方面备受关注；然而，钴（II）SCO配位聚合物（CPs）在此类应用中的使用极其有限。本文介绍了一维钴（II）SCO - CPs，[CoX₂(pyterpy)]（pyterpy = 4′-(4 - 吡啶基)-2,2′:6′,2′′ - 三联吡啶；X = Cl（1），Br（2））的合成。化合物1的结构呈现出一种“封闭”的堆积排列，在室温下表现出门控型吸水行为，而化合物2具有一种“开放”的堆积排列，在室温下表现出I型吸水行为。此外，化合物1和2在201 K时都吸附二氧化碳。在吸水之后，1·H₂O和2·H₂O分别在226 K和299 K时表现出协同自旋交叉。
Discrete Co(II) spin crossover (SCO) compounds have attracted much attention for constructing highly sensitive molecular devices; however, the use of Co(II) SCO-coordination polymers (CPs) in such applications is extremely limited. The syntheses of the one-dimensional Co(II) SCO-CPs, [CoX2(pyterpy)] (pyterpy = 4′-(4-pyridyl)-2,2′:6′,2′′-terpyridine; X = Cl (1), Br (2)), are presented. The structure of 1 shows a ‘closed’ packing arrangement that exhibits gate-type water adsorption at room temperature while 2 has an ‘open’ packing arrangement that shows type I water adsorption behaviour at room temperature. In addition, both 1 and 2 adsorb CO2 at 201 K. Following water adsorption, 1·H2O and 2·H2O showed cooperative SCO at 226 K and 299 K, respectively.