title: Tuning the structures based on polyoxometalates from 1-D to 2-D by using different secondary organic ligands.
abstract: Six new organic-inorganic hybrid compounds based on [XM12O40](4-) (X = heteroatom, M = metal atom), namely [Cu(pic)2][H2XM12O40]·2Hapy·2apy (X = Si, M = W for , X = Ge, M = W for and X = Si, M = Mo for ), [Cu(2,2'-bpy)2][Cu(2,2'-bpy)(H2O)][Cu(pic)2]0.5[XM12O40]·nH2O (X = Si, M = Mo, n = 0.5 for , X = Ge, M = W, n = 1 for ) and [Cu(phen)(H2O)]2[Cu(pic)2][GeW12O40]·2.5H2O () (pic = deprotonated picolinic acid, apy = 2-aminopyridine, 2,2'-bpy = 2,2'-bipyridine, phen = phenanthroline), have been synthesized and characterized by IR, UV-Vis, XRD, cyclic voltammetric measurements and single crystal X-ray diffraction analysis. Single crystal X-ray analysis reveals that compounds are isomorphous and isostructural, in which each is based on [H2XM12O40](2-) and [Cu(pic)2]. Compounds and are also isomorphous and isostructural, of which the structures are more interesting than those of compounds . Both structures are constructed from [XM12O40](4-) and metal mixed-organic-ligand complexes. Compound is also constructed from Keggin ions and metal mixed-organic-ligand complexes, which are, however, thoroughly different from those of compounds and . The photodegradation properties of compounds have been analyzed. Compounds also exhibit rapid absorption properties for RhB (Rhodamine B). Detailed analysis of the photodegradation properties of compounds reveals that the molybdate POM has stronger degradation ability for RhB than the tungstate one.
authors.affiliation: College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin 130023, China. cuixb@mail.jlu.edu.cn.
authors.forename: Yang-Yang
authors.initials: YY
authors.lastname: Hu
authors.lastname: Xiao-Zhang
authors.forename: De-Chuan
authors.initials: DC
authors.lastname: Zhao
authors.forename: Hai-Yang
authors.initials: HY
authors.lastname: Guo
authors.forename: Li-Wei
authors.initials: LW
authors.lastname: Fu
authors.forename: Lan-Lan
authors.initials: LL
authors.lastname: Guo
authors.forename: Xiao-Bing
authors.initials: XB
authors.lastname: Cui
authors.forename: Qi-Sheng
authors.initials: QS
authors.lastname: Huo
authors.forename: Ji-Qing
authors.initials: JQ
authors.lastname: Xu
mesh_terms: D015082:2,2'-Dipyridyl / Q000737:chemistry; D000631:Aminopyridines / Q000737:chemistry; D004396:Coloring Agents / Q000302:isolation & purification; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D008982:Molybdenum / Q000737:chemistry; D010618:Phenanthrolines / Q000737:chemistry; D010782:Photolysis; D010848:Picolinic Acids / Q000737:chemistry; D012235:Rhodamines / Q000302:isolation & purification; D017973:Tungsten Compounds / Q000737:chemistry*; D000099294:Polyoxometalates
chemical_list: D015082:2,2'-Dipyridyl; D000631:Aminopyridines; D004396:Coloring Agents; D008024:Ligands; D008982:Molybdenum; D010618:Phenanthrolines; D010848:Picolinic Acids; D012235:Rhodamines; D017973:Tungsten Compounds; C102296:polyoxometalate I; D000099294:Polyoxometalates; C044659:molybdate; C029773:rhodamine B; C030614:picolinic acid; C045951:tungstate; C032439:alpha-aminopyridine