摘要
通过水热方法合成了一例新型无机-有机超分子(H_2bbbi)_(1. 5)[PW_(12)O_(40)]·H_2O (1)[(bbbi=1,1'-(1,4-丁基)二-1H-苯并咪唑)],并通过单晶X-射线衍射对超分子的结构进行了表征.分析结果表明,化合物1为三斜晶系,P 1空间群,a=1. 1992(26),b=1. 3129(28),c=1. 9726(44) nm,α=96. 743(26)°,β=101. 857(29)°,γ=111. 623(44)°,Z=2,V=2. 7612(17) nm^3,D_c=3. 722 g/cm^3,F(000)=2664,R_(int)=0. 0492,R=0. 0627,wR=0. 1849.在1中,相邻的[PW_(12)O_(40)]^(3-)通过一对结晶水分子拓展成[(PW_(12)O_(40))_2(H_2O)_2]^(6-)双多酸结构单元,该结构单元通过质子化的H_2bbbi^(2+)和多酸之间的氢键作用链接成二维超分子.此外,标题超分子的相纯度、光催化性质和电化学行为被研究.
A new inorganic - organic supramolecular （H2bbbi） 1.5 [ PW12O40 ] · H2O （ 1 ） [ bbbi = 1,1＇ - （ 1,4 -butanediyl） his -1H -benzimidazole）] has been synthesized with the hydrothemlal method and structurally characterized by single crystal X- ray diffraction. Compound 1 is triclinic, P 1, a = 1. 1992（26）, b = 1. 3129 （28）, c = 1. 9726（44） nm, α =96. 743（26） °, β = 101. 857（29） °,γ = 111. 623（44） °, Z =2, IV =2. 7612 （17） nm3, Dc =3.722 g/cm3, F（000） =2664, Rint =0.0492, R =0.0627, wR =0. 1849. In 1, the adjacent two [ PW12O40 ] 3- anions are connected by a pair of lattice water molecules to generate a supramolecular [ （PW12 O40 ） 2 （H2O） 2 ] 6- subunit, which are further bridged by protonated [ H2bbbi ] 2 ＋ cations to form a （4,4） 2D su- pramolecular network through hydrogen bonding interactions. Moreover, the good phase purity and photocatalytic property of 1, and the cyclic voltammetry behavior of 1 modified carbon paste electrode in 1 M H2SO4 solution are investigated.
作者
卢雪
唐爽
高越
刘国成
LU Xue;TANG Shang;GAO Yue;LIU Guocheng(College of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121013,China)
出处
《渤海大学学报（自然科学版）》
CAS
2018年第3期223-228,共6页
Journal of Bohai University:Natural Science Edition
基金
国家自然科学基金项目(No:21401010)
关键词
N-H…O作用
多金属氧酸盐
柔性双苯并咪唑
电化学行为
光催化性能
N-H…O interaction
polyoxometalate
flexible his （ benzimidazole ） ligand
electrochemical behavior
photocatalytic property
