Water Adsorption-Desorption Property of Stable Porous Supramolecular Assembly Composed of Discrete Tetranuclear Iron(III) Complex Using π・・・π Interactions
Water Adsorption-Desorption Property of Stable Porous Supramolecular Assembly Composed of Discrete Tetranuclear Iron(III) Complex Using π・・・π Interactions
复制标题
利用π···π相互作用研究由离散四核铁(III)配合物组成的稳定多孔超分子组装体的水吸脱附特性
DOI：
10.1016/j.ica.2012.02.002
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
and S. Kawata
中科院分区：
文献类型：
--
作者：
R. Ishikawa;K. Nishio;A.Fuyuhiro;K.Yoneda;H.Sakamoto;S.Kitagawa;and S. Kawata
合成了一种四核配合物[FeIII4(μ-bpypz)4(μ-O)2(NO3)2(H2O)2](NO3)2·3MeOH (1) （bpypz−=3,5-双（2-吡啶基）吡甲酸酯）。单晶x射线结构测定揭示了扩展的三维结构具有一维通道，其中互补的非三聚核通过π⋯π堆叠相互作用连接在一起。1的多孔超分子组装具有较高的热稳定性。通过水吸附/解吸过程，化合物1具有柔性，并显示出晶体填料中bpypz−配体之间特定π⋯π堆叠模式引起的可逆结构转变。
A tetranuclear FeIIIcomplex, [FeIII4(μ-bpypz)4(μ-O)2(NO3)2(H2O)2](NO3)2·3MeOH (1) (bpypz−=3,5-bis(2-pyridyl)pyrazolate), has been synthesized and characterized. Single-crystal X-ray structural determination reveals that the extended three-dimensional structure having the one-dimensional channel, in which the complementary FeIIItetrameric core linked together by π⋯π stacking interactions. Porous supramolecular assembly of 1 shows high thermal stability. Through water adsorption/desorption process, compound 1 is flexible, and shows the reversible structural transformation arising from the specific π⋯π stacking mode between bpypz−ligands in the crystal packing.