Synthesis and photocatalytic property of a Keggin-type POM-based compound hybridized by a pyridyl-amide ligand
RONG Xing
WANG Qing-lin
ZENG ling
LIN Hong-yan?
Abstract：A new Keggin-type polyoxometalate-based compound derived from a pyridyl-amide ligand H3 [(pa)2(PMo12O40)]·2H2O (pa = N-(pyridin-3-yl)isonicotinamide) has been prepared under the hy-drothermal environment. The single crystal X-ray diffraction reveals that this compound ( C22 H25 Mo12 N6 O44 P) is triclinic,P 1, a=1. 1084(5) nm,b =1. 1229(5) nm,c=1. 2322(5) nm,α=64. 085(5)°,β =74. 947 (5)°,γ=69. 487(5)°,V=1. 2816(10) nm3,Z=1,Mr = 2259. 73,F(000) =1070,μ=2. 983 mm-1,Dc =2. 928 g/cm3 ,S=1. 028,R=0. 0349,wR = 0. 0891. The structural analysis shows that the title compound is a two-di-mensional supramolecular layer constructed by the pyridyl-amide ligand ap and Keggin-type [ PMo12 O40 ] 3- ani-on. The hydrogen-bonding interactions between the ap ligands and the [PMo12O40]3- anions play the key role in forming the final supramolecular structure. Additionally, the photocatalytic properties of the title compound towards the degradation of methylene blue under the UV or sunlight have been studied.
Keywords：Keggin-type polyoxometalatepyridyl-amide ligandcrystal structurehydrogen-bonding interactionsphotocatalytic property
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 140-144 )