铌取代型杂多钨酸盐的合成、表征、生物活性及晶体结构

摘要

合成了铌、过氧化铌取代的钨硅、钨锗杂多配合物M7-mHm[XW9Nb3O40].nH2O和M7[XW9-(NbO2)3O37].nH2O(X=Si,Ge;M=K,Me4N,Bu4N)，对化合物进行了元素分析，紫外光谱，红外光谱，183WNMR研究，通过单晶X射线衍射对K4H12[Si2W14Nb10O79].13H2O的晶体结构进行了表征，该化合物属单斜晶系，C2空间群，晶胞参数a=1.9226(4)nm，b=3.3134(7)nm，c=1.2497(3)nm,V=7.9616(3)nm3,Dc=3.240g/cm3，Z=3，μ=15.886mm-1，F(000)=6920，R=0.0565，WR2=0.0972.对化合物进行了抗番茄花叶病毒活性的研究，部分化合物表现出良好的活性.%The new complexes M7-mHm[XW9Nb3O40].nH2O andM7[XW9(NbO2)3O37].nH2O(X=Si,Ge;M=K,Me4N,Bu4N), were synthesized and characterized by IR, UV and 183W NMR spectrometry. Complex K4H12[Si2W14Nb10O79].13H2O was determined by XRD to be of Keggin structure. Its crystal belongs to monoclinic space group C2, with a=1.9226(4) nm, b=3.3134(7) nm, c=1.2497(3) nm, Dc=3.240 g/cm3, Z=3, μ=15.886 mm-1, F(000)=6920, R=0.0565, WR2=0.0972. It was found that the complex has an excellent anti-virus activity to tomato mosaic virus.