Water helicate (H₂O)₅ hosted by a novel 2D Co^II-coordination framework with left- and right-handed helical units

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• 作者：Geng-Geng Luo ; ^{ggluo@hqu.edu.cn} ; Sheng-Hui Wu ; Qing-Hua Zhao ; Dong-Xu Li ; Zi-Jing Xiao ; Jing-Cao Dai ; ^{djc@hqu.edu.cn}
• 关键词：Coordination polymers ; 1 ; 2 ; 4 ; 5-benzenetetracarboxylate(H4btec) ; Helical chains ; (H2O)5 helicate ; Hydrogen bonds
• 刊名：Inorganic Chemistry Communications
• 出版年：2012
• 期刊代码：39_13877003
• 类别：ch
• 出版时间：June, 2012
• 卷：20
• 期：Complete
• 页码：290-294
• 文件大小：729 K

摘要

A novel 2D cobalt(II) coordination polymer comprising left- and right-handed helical chains, {[H₂bpp][Co₂(bpp)₂(Hbtec)₂(H₂O)₄]路(H₂O)₅}_n (1) (bpp = 1,3-bis(4-pyridyl)-propane and H₄btec = 1,2,4,5-benzenetetracarboxylate), was prepared under hydrothermal conditions and characterized by single-crystal X-ray diffraction method. Complex 1 provides suitable hydrophilic channel in which lattice water molecules accumulate, forming a (H₂O)₅ helicate, stabilized by anchoring to the host structure through hydrogen-bonding interactions involving alternating water molecules and the carboxylate oxygen atoms of Hbtec^{3鈭?/sup> ligands.}