Two Polyoxometalate-based Host-guest Compounds:Synthesis,Crystal Structure and Catalytic Performance

作     者：WANG Song-Xia WANG Sa-Sa WU Xiao-Yuan YANG Wen-Bin LU Can-Zhong 王宋霞;王洒洒;吴小园;杨文斌;卢灿忠

作者机构：Fujian Normal UniversityFuzhou 350007China CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2021年第40卷第12期

页      面：1655-1660,1554页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：This work was supported by the Key Research Program of Frontier Science,CAS(QYZDJ-SSW-SLH033) the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB20000000) the National Natural Science Foundation of China(21773247,21521061,21875252,52073286) 

主　　题：polyoxometalates catalytic oxidation aniline nitrosobenzene 

摘      要：Two polyoxometalate-based host-guest compounds,(HL1)2(HPW12O40)〜11H2O(1),(HL2)3(PWi2O40)·3H2O(2)(L_(1)=guanine,L_(2)=2-(1H-1,2,4-triazol-3-yl)pyridine),were synthesized under hydrothermal conditions and characterized by EA,PXRD,TG,FT-IR and X-ray single-crystal *** 1 crystallizes in trigonal space group P-3 with a=18.2917(5),b=18.2917(5),c=13.5441(5)A,V=3924.5(3)A^(3),Z=3,Mr=3383.26 g/mol,pcak=4.036 g/cm^(3),F(000)=4137,=48.532 mm^(-1),GOOF=1.062,the final R=0.0713 and wR=0.1865 for 9037 observed reflections with I2σ(I).Compound 2 crystallizes in trigonal space group R-3 with a=19.0017(6),b=19.0017(6),c=25.6361(9)A,V=8016.2(6)A^(3),Z=6,Mr=3372.45 g/mol,p_(calc)=4.188 g/cm,F(000)=8886,μ=47.644 mm^(-1),GOOF=1.077,the final R=0.0380 and wR=0.0976 for 5904 observed reflections with I2σ(I).These two compounds can catalyze selective oxidation of aniline with H2O2 as the *** optimal conditions,the conversion of aniline with compound 1 can reach up to 91.25%,and the selectivity of nitrosobenzene is 78.81%.