一个二维Keggin型多酸基银配合物的合成、结构及光催化性质  

Synthesis,crystal structure and photocatalytic activity of a two-dimensional Keggin type polyoxometalates-based Ag complex

作　　者：王祥[1] 武晓梅[1] 李乔敏[1] 熊莹[1] 于蕙瑄 王桂娇[1] WANG Xiang WU Xiao-Mei LI Qiao-Min XIONG Ying YU Hui-Xuan WANG Gui-Jiao(College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China)

机构地区：[1]渤海大学化学化工学院,辽宁锦州121013

出　　处：《渤海大学学报（自然科学版）》2016年第3期232-236,共5页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(No:21401010)

摘　　要：以3-吡啶双三氮唑(H_2L)为有机连接子,利用水热环境进行自组装,获得了一个二维Ag(I)配位聚合物:[Ag4(H_2L)(HL)(PMo12O40)]·2H_2O.单晶X-射线衍射测定得该配合物为三斜晶系,P 1空间群,a=13.035(5),b=13.714(5),c=16.606(6),α=97.835(7)°,β=92.547(7)°,γ=107.895(4)°,Z=2,V=2786.9(18)3,Mr=2715.19,Dc=3.236 g/cm3,μ=4.113 mm-1,F(000)=2532,S=1.016,R=0.1556,wR=0.4692.配合物中,四种配位环境的Ag+通过两种配位模式的3-吡啶双三氮唑配体连接成一维金属-有机带,相邻的金属有机带通过三连接的多酸阴离子PMo12O403-拓展成二维配位聚合物网络.该配合物对亚甲基蓝在紫外光下的光催化性能也被研究.A two-dimensional Ag（I） coordination polymer [Ag4（H2L）（HL）（PMo12O40）]A 2H2O [H2L=3-（pyrid-3-yl）-5-（1H-1,2,4-triazol-3-yl）-1,2,4-triazolyl] has been hydrothermally synthesized . Triclinic, P 1, a=13.035（5）A, b=13.714（5）A, c=16.606（6）A,α=97.835（7）°,β=92.547（7）°,γ=107.895（4）°, Z=2, V=2786.9（18）A^3, Mr =2715.19, Dc =3.236 g/cm3,μ=4.113 mm-1, F（000）=2532, S=1.016, R=0.1556, wR=0.4692.The crystal structure analysis indicates that the Ag ＋with four coordination modes were connected by two types of L ligands to form a 1D metal-organic band , which is further linked by 4-connected PMo12O403-forming a 2D network.Moreover, the photocatalytic activity for the degradation of methylene blue under UV light of the title compound was investigated .

关 键 词：银 keggin型多阴离子 自组装 晶体结构 光催化性质 

分 类 号：O614.122[理学—无机化学]