title: Two novel inorganic-organic hybrid materials constructed from two kinds of octamolybdate clusters and flexible tetradentate ligands.
abstract: Two novel hybrid materials based on two kinds of octamolybdate anions and metal-organic frameworks (MOFs), namely, [Ag(8)(L(1))(4)(α-Mo(8)O(26))(β-Mo(8)O(26))(H(2)O)(3)]·H(2)O (1) and [Cu(I)(3.1)Cu(II)(0.5)(β-Mo(8)O(26))(0.5)(ζ-Mo(7)(VI)Mo(V)O(26))(0.5)(L(2))(2)(H(0.8)L(2))(0.5)] (2), where L(1) = 1,1'-(1,3-propanediyl)bis[2-(4-pyridyl)benzimidazole] and L(2) = 1,1'-(1,4-butanediyl)bis[2-(3-pyridyl)benzimidazole], have been successfully synthesized. Crystal structure analysis revealed that 1 is a three-dimensional (3D) framework constructed of silver(I)-organic sheets and two types of (Mo(8)O(26))(4-) isomers. Compound 2 is a rare 3D framework containing copper(I,II)-organic cages and 1D channels occupied by the (ζ-Mo(7)(VI)Mo(V)O(26))(5-) and (β-Mo(8)O(26))(4-) anions. The two compounds were characterized by elemental analysis, IR spectroscopy, diffuse reflectivity spectroscopy, and photoluminescent spectroscopy. In addition, the photocatalytic behavior of 1 was investigated.
authors.affiliation: Key Lab of Polyoxometalate Science, Department of Chemistry, Northeast Normal University, Changchun, People's Republic of China.
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Liu
authors.forename: Liu
authors.initials: L
authors.lastname: Bo
authors.forename: Jin
authors.initials: J
authors.lastname: Yang
authors.forename: Ying-Ying
authors.initials: YY
authors.lastname: Liu
authors.forename: Jian-Fang
authors.initials: JF
authors.lastname: Ma
authors.forename: Hua
authors.initials: H
authors.lastname: Wu
mesh_terms: D002384:Catalysis; D003300:Copper / Q000737:chemistry; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D008982:Molybdenum / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D008024:Ligands; D009942:Organometallic Compounds; D003300:Copper; D008982:Molybdenum