一种镍有机膦酸盐的合成、结构及表征  

Synthesis,Structure and Characterization of a Nickel Organophosphonate Salt

作　　者：杨益 王磊 王佳崎 王汉 翁果果 徐国海 YANG Yi;WANG Lei;WANG Jiaqi;WANG Han;WENG Guoguo;XU Guohai(School of Chemistry and Chemical Engineering,Gannan Normal University;Key Laboratory of Jiangxi University for Functional Materials Chemistry,Ganzhou 341000,China)

机构地区：[1]赣南师范大学化学化工学院 [2]江西省高等学校功能材料化学重点实验室,江西赣州341000

出　　处：《赣南师范大学学报》2024年第6期55-60,共6页Journal of Gannan Normal University

基　　金：国家自然科学基金项目(21201040,21761003);江西省杰出青年基金(20192BCBL23011);江西省教育厅项目(GJJ2201225);江西省功能材料化学重点实验室开放课题(FMC202301);赣南师范大学科研启动经费项目(BSJJ202238)。

摘　　要：通过Ni(NO_(3))_(2)·6H_(2)O、4,4’-联苯二膦酸(H_(4)L)和1,10-菲啰啉(Phen)混合,用氢氧化钠调节pH值,在水溶液中反应得到一个有机膦酸镍盐.X-射线单晶衍射结果表明该晶体结晶于单斜晶系,P2_(1)/n空间群.化合物1的最小不对称单元包含1个单核金属Ni^(2+)离子、3个Phen分子、1个脱去两个质子的H4L分子以及10个游离的晶格水分子.化合物1的分子式为{[Ni(Phen)_(3)](H_(4)L)}·10H2O.化合物1结构中由于填充大量游离水分子而存在丰富的氢键作用,晶格水分子之间以及晶格水分子与膦酸基团间均通过氢键相互作用连接,进而形成了三维超分子网络.此外,化合物1的结构也被红外光谱、X-射线粉末衍射以及热重分析表征手段证实.The nickel organophosphonate salt was obtained by reaction of a mixture of Ni(NO_(3))_(2)·6H_(2)O,4,4'-biphenyldiphosphonic acid(H_(4)L)and 1,10-phenanthroline(Phen)in aqueous solution by adjusting the pH with sodium hydroxide.X-ray single-crystal diffraction results indicate that compound 1 crystallizes in the monoclinic crystal system with the P2_(1)/n space group,the asymmetric unit of which contains one mononuclear Ni^(2+)ion,three 1,10-phenanthroline molecules,one 4,4'-biphenyldiphosphonic acid molecule and ten lattice water molecules.The molecular formula of compound 1 was{[Ni(Phen)_(3)](H_(4)L)}·10H_(2)O.The structure of compound 1 is filled with a large number of lattice water molecules and abundant hydrogen bonds.Therefore,the three dimensional supramolecular network was formed by a large number of hydrogen bond interactions between the lattice water molecules and the phosphonic acid groups.In addition,the structure of compound 1 was confirmed by infrared spectroscopy,X-ray powder diffraction and thermogravimetric analysis characterization.

关 键 词：膦酸盐 晶体结构 氢键 超分子网络 

分 类 号：O641.4[理学—物理化学]