摘 要: | IntroductionBasedonarelativelylargenumberofdifferenttypesofbuildingblockswhichcorrespondtopolyhe dron {VOx} (x =4 ,5 ,6 ) ,polyoxovanadatesshowanextraordinaryvarietyofstructures ,suchascage ,basket ,belt ,ballandbarrelstructures1— 5] .Further more,these polyoxovanadatesexhibita pronouncedtendencytoformcage likestructureswhichmayen capsulateneutralmoleculesaswellasionicguests ,afeaturesharedbysomeisopolyanionssuchas V18O4 2·(H2 O) ]12 - 6 ] ,H4 V18O4 2 (X) ]9- (X =Cl- ,Br- ,I- ) 2 ,…
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