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本文报道了一个新的有机双膦酸铜化合物Cu3{(C5NH11)C(OH)(PO3)2}2(H2O)4·4H2O(1)的合成及结构。该化合物呈梯子型双链结构,由Cu(1)O5四方锥体和Cu(2)O6八面体通过{PO3C}四面体以共顶点方式连接而成。相邻的双链以几乎相互垂直的方式堆积,通过氢键作用形成了具有孔道的三维超分子网络结构,晶格水分子填充其中。磁性研究表明在铜离子间存在反铁磁相互作用。
This paper reports the synthesis and structure of Cu3 {(C5NH11) C (OH) (PO3) 2} 2 (H2O) 4 · 4H2O (1), a new organic bisphosphonate copper compound. The compound has a ladder-type double-stranded structure, and is formed by coplanar connection of a Cu (1) O5 tetragonal pyramid and a Cu (2) O6 octahedron through a {PO3C} tetrahedron. Adjacent double strands are stacked in an almost perpendicular manner, and a three-dimensional supramolecular network structure with pores is formed by hydrogen bonding, in which lattice water molecules are filled. Magnetic studies show that there is antiferromagnetic interaction between copper ions.