Copper Carboxylate-phosphonates: Syntheses,Crystal Structures and Magnetic Properties  

作　　者：XU Yan 徐艳(Department of Materials Science and Engineering,Suqian University,Suqian 223800,China)

机构地区：[1]Department of Materials Science and Engineering,Suqian University,Suqian 223800,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第8期1061-1067,970,共8页结构化学（英文）

基　　金：Supported financially by Suqian Sci&Tech Program(No.K201911);the second batch of university-level scientific research platform of Suqian University(No.2021pt04)。

摘　　要：Two novel copper carboxyly-phosphonates,namely,Cu2.5(5-pnc)(SO_(4))0.5(OH)(H_(2)O)0.5(1)and Cu0.5(5-pncH2)(H2O)1.5(2)(5-pncH3=5-phosphono-1-naphthalenecarboxylic acid),have been synthesized and characterized by X-ray diffraction,infrared spectroscopy,elemental analysis,and thermogravimetric analysis.In compound 1,each{PO3C}tetrahedron is corner-shared with two{Cu(1)O4},two{Cu(2)O5}and one{Cu(3)O_(5)},thus forming a one-dimensional inorganic chain along the c axis containing 8-membered rings of[Cu_(3)O_(4)S]and 19-membered cages of[Cu_(5)O_(10)P_(4)].The inorganic chains are further connected by a 5-pnc3-ligand to generate a three-dimensional framework.Compound 2 exhibits a one-dimensional structure,in which the inorganic chains of[Cu-O-Cu]n are connected by the organic ligands through hydrogen bonding interactions,forming an infinite two-dimensional layer.Magnetic measurements of 1 indicate that dominant antiferromagnetic interactions are mediated between the Cu^(2+)centers.

关 键 词：COPPER carboxylate-phosphonate crystal structure magnetic properties 

分 类 号：O641.4[理学—物理化学]