L_(2)(PMo_(11)O_(39)NiL)的合成、结构与催化氧化碘离子性能  

Synthesis,Structure and Catalytic Oxidation of Iodide Ion of L_(2)[PMo_(11)O_(39) NiL]

作　　者：郭军[1,2] 卢林 张太文 张丹 冯潇 GUO Jun;LU Lin;ZHANG Tai-wen;ZHANG Dan;FENG Xiao(School of Chemistry and Materials Science,Guizhou Normal University,Guizhou Guiyang 550001;State Key Laboratory for Efficient Utilization of Medium and Low Grade Phosphate Rock and Its Associated Resources,Wengfu(Group)Co,Guizhou Guiyang 550014;Western District Senior High in Hezhang County,Guizhou Hezhang 554300,China)

机构地区：[1]贵州师范大学化学与材料科学学院,贵州贵阳550001 [2]瓮福(集团)有限责任公司中低品位磷矿及其共伴生资源高效利用国家重点实验室,贵州贵阳550014 [3]赫章县西城区高级中学,贵州赫章554300

出　　处：《广州化工》2023年第17期13-16,35,共5页GuangZhou Chemical Industry

基　　金：国家自然科学基金项目(批准号:21862005);贵州省科技厅计划项目(批准号:黔合基础[2019]1457、黔科合支撑[2019]2835、黔科合平台人才[2018]5769);贵州省教育厅青年科技人才成长项目(批准号:黔科合KY字[2018]126)。

摘　　要：以H_(3)PMo_(12)O_(40)为前驱体,采用水热法合成了一例结构新颖且罕见的单缺位Keggin型杂多酸基有机-无机杂化物,经X射线单晶衍射、元素分析、红外光谱对化合物进行了表征。表征表明:化合物结构式为(C_(7)H_(11)N_(2))_(2)(PMo_(11)O_(39)NiC_(7)H_(11)N_(2))[简称为L_(2)(PMo_(11)NiL),其中PMo_(11)为单缺位Keggin型磷钼杂多酸阴离子(PMo_(11)O_(39))^(7-)、L=2-(2-氨基乙基)吡啶],属于单斜晶系,Cc空间群,晶胞参数a=1.32908(4)nm,b=1.83884(6)nm,c=2.27300(7)nm,α=γ=90°,β=96.7310(10)°,V=5.5168(3)nm^(3),Z=4,R_(1)=0.0266,wR_(2)=0.0887。催化研究表明:该非均相催化剂在催化过氧化氢氧化碘离子中表现出良好的催化活性且具有较稳定的可重复性。Using H_(3)PMo_(12)O_(40) as precursor,using the method of hydrothermal synthesis of novel structure and rare case of absence of single Keggin heteropoly acid matrix organic-inorganic compound,by X-ray single crystal diffraction,elemental analysis,IR spectra of compounds was characterized.Characterization showed that the compound formula for(C_(7)H_(11)N_(2))_(2)(PMo_(11)O_(39)NiC_(7)H_(11)N_(2)),short for L_(2)(PMo_(11)NiL),in which PMo_(11) was a single vacancy Keggin type phosphomolybdenum heteropolyacid anion(PMo_(11)O_(39))^(7-),L=2-(2-aminoethyl)pyridine,belonged to monoclinic system,Cc space group,unit cell parameters a=1.32908(4)nm,b=1.83884(6)nm,c=2.27300(7)nm,α=γ=90°,β=96.7310(10)°,V=5.5168(3)nm^(3),Z=4,R_(1)=0.0266,wR_(2)=0.0887.Catalytic research showed that the heterogeneous catalysts in the catalytic hydrogen peroxide oxidation iodine ion showed good catalytic activity and had a relatively stable repeatability.

关 键 词：多金属氧酸盐 水热合成 晶体结构 催化性能 碘离子 

分 类 号：O643.36[理学—物理化学]