| In this work,through using triazole,pyrazole and thiazole derivatives as organic ligands,such as 1,4-bis(1,2,4-triazol-1-methyl)cyclohexane(btmc),1,1'-bis(3,5-dimethyl-1h-pyrazolyl)methane(H2bdpm),2,2'-dimethyl-4,4'-bithiazole(dm4bt),fourteen polyoxometalate(POM)compounds based on Keggin type,Anderson type and homopolymolybdate/homopolyvanadate were synthesized by adjusting the reaction condition.The characterization of compounds mainly includes single crystal X-ray diffraction,TG,XRD.The research on the properties of these compounds mainly includes electrochemical,photocatalytic,fluorescence and other properties.1.Different molybdenum and vanadium sources were used to obtain six compounds,such as(NH4)6Mo7O24·4H2O/H2Mo O4·12H2O/H3PMo12O40·12H2O/NH4VO3.Compounds 1 and 2contain one-dimensional chain and two-dimensional layer structures,respectively.Compounds 3and 4 contain infinitely extended Mo-O chains.Compounds 5-6 contain the same V-O chains,which are linked by ligands to form a three-dimensional network structure.Compounds 1-4 can be used as electrochemical sensors to detect cation ions.[Cu4?(btmc)(ctcm)4(?-Mo8O26)]·[?-Mo8O26]·H2O(1)[Cu4?(mct)2(ctcm)2(H2O)6(?-Mo8O26)]·[?-Mo8O26](2)[Co?(dm4bt)(Mo2O7)](3)[Co?(H2bdpm)(Mo2O7)](4)[Co?(H3bdpm)(V3O9)](5)[Ni2?(H3bdpm)2(V3O9)2](6)btmc=1,4-?(1,2,4-??-1-??)???ctcm=C-(4-[1,2,4]??-4-???-???)-??mct=4-(4-??-?????)-4H-[1,2,4]??dm4bt=2,2'-???-4,4'-???H2bdpm=1,1'-?(3,5-???-1H-???)??2.Five classical Keggin-based compounds were synthesized by using 2,2'-dimethyl-4,4'-bisthiazole(dm4bt)and 1,1'-bis(3,5-dimethyl-1H-pyrazolyl)methane(H2bdpm)to react with classical Keggin-type polyoxometalates under hydrothermal conditions.Compounds 7–11 contain supramolecular one-dimensional chain and two-dimensional layer structures.Compounds 7–11can act as photoelectric sensors to detect inorganic ions and have photocatalytic activity.[CuI(dm4bt)2]4[GeW12O40](7)[Ni4?(dm4bt)8(GeW12O40)2(H2O)2]·2H2O(8)[Co4?(dm4bt)8(GeW12O40)2(H2O)2]·2H2O(9)[Co4?(dm4bt)8(SiW12O40)2(H2O)2]·6H2O(10)[Cu2?(H2bdpm)(HBW12O40)(H2O)2]·H2O(11)3.Three Anderson-based compounds 12–14 were synthesized by using Anderson type polyoxometalates and 1,1'-bis(3,5-dimethyl-1H-pyrazolyl)methane(H2bdpm)as substrates.The single crystal structures exhibit that these three compounds are isomorphic with the 1D chain structure.Compounds 12–14 have photoelectric sensing,capacitor and photocatalytic activities.[Co2?(H3bdpm)2(TeMo6O24)(H2O)6](12)[Cd2?(H3bdpm)2(TeMo6O24)(H2O)6](13)[Zn2?(H3bdpm)2(TeMo6O24)(H2O)6](14)... |
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