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Articles by Enbo Wang
Total Records ( 6 ) for Enbo Wang
  Yanyong Liu , Shuxia Liu , Enbo Wang , Yi Zeng and Zelin Li
  Yan Ding , Hongli Chen , Enbo Wang , Ying Ma and Xinlong Wang
  A new compound [Zn(phen)2]2[ GCOO_A_293169_O_XML_IMAGES\GCOO_A_293169_O_ILM0001.gif][Zn(phen)2(H2O)]2[ GCOO_A_293169_O_XML_IMAGES\GCOO_A_293169_O_ILM0002.gif] · 7H2O (phen = phenanthroline) has been synthesized under hydrothermal conditions and characterized by IR, TG analysis and single-crystal X-ray diffraction. Compound 1 crystallizes in the monoclinic system, space group P21/C, a = 21.609(4) Aring, b = 16.537(3) Aring, c = 21.279(4) Aring, agr = 90°, β = 100.25(3)°, γ = 90°, V = 7483(3) Aring3, Z = 2. The basic building unit in 1 is the [PMo8V6O42] cluster. The most remarkable structural feature of 1 is that there exist two distinct [PMo8V6O42] clusters. One is covalently linked by [Zn(phen)2] complexes to form a 2D covalent layer, the other supports two [Zn(phen)2(H2O)] complexes forming a discrete bisupporting structure. It is interesting that discrete bisupporting clusters locate in the space of two adjacent covalently layers to form a 3D supramolecular framework.
  Jingxin Meng , Xinlong Wang , Ying Ma , Enbo Wang and Xinxin Xu
  Two new polyoxotungstates with dafo and 4,4`-bipy ligands, [Ag(dafo)2]2{[Ag(4,4`-bipy)]2SiW12O40} (1) and [Cd2(dafo)4(4, 4`-bipy)(H2O)2](dafo) SiW12O40 (2) (dafo = 4, 5-diazafluoren-9-one, 4,4`-bipy = 4,4`-bipyridine), have been hydrothermally synthesized and characterized by elemental analyses, IR, TG and single crystal X-ray diffraction. Compound 1 consists of a one-dimensional (1D) chain constructed from [Ag(4,4`-bipy)]+ cations. With the connection of [Ag(4,4`-bipy)]+ cations and α-[SiW12O40]4- anions, two-dimensional (2D) structure was built. Because of the π-π stacking interactions between pyridyl rings of 4,4`-bipy from adjacent chains, three-dimensional (3D) structure was generated. Furthermore, the C-H ... O weak interaction between [Ag(dafo)2]24+ and polytungstate made the structure more stable. Like 1, compound 2 is a three-dimensional (3D) supramolecular compound constructed from a transition-metal complex fragment [Cd2(dafo)4(4,4`-bipy)(H2O)2]4+, SiW12O404- and free dafo through C-H ... O weak interactions. To our best knowledge, it is the first time that saturated Keggin-type polyoxotungstates interact with dafo and 4,4`-bipy at the same time.
  Xinxin Xu , Xiaoxia Liu , Ting Sun , Xia Zhang and Enbo Wang
  We have synthesized four coordination polymers with two different nitrogen containing organic ligands and different lanthanide metal ions, under hydrothermal condition. [lcubLn2(bpdc)3(H2O)2rcub]n (Ln = Dy (1), Sm (2)) (bpdc = 2,2-bipyridine-3,3-dicarboxylic acid) are isostructural, with 2-D supramolecular layer structure composed from 1-D chains. Like 1 and 2, [lcubLn(pzda)2(H2O)2rcub · 4H2O]n (Ln = Dy (3), Nd (4)) (pzda = pyrazine-2,6-dicarboxylic acid) are also isostructural with 1-D chain-like structures. The photoluminescence of 2 is studied.
  Yan Zhong , Hai Fu , Jingxin Meng and Enbo Wang
  Two organic-inorganic hybrid materials built from copper-glycin complexes and paradodecatungstates, Na6[{Cu(gly)(H2O)}]2[{Cu(H2O)}(H2W12O42)] ⋅ 21H2O (1) and Na{Na(H2O)6}{Na(H2O)4}3[{Cu(gly)2}]2{H5(H2W12O42)} ⋅ 8.5H2O (gly = glycin) (2), have been synthesized in aqueous solution and characterized by IR, UV, TG, elemental analysis, electrochemistry, and single-crystal X-ray analyses. In 1, [H2W12O42]10- building block connects two neighboring clusters with [Cu(H2O)]2+ groups to produce an infinite 1-D chain; then these chains are linked through [Cu(gly)(H2O)]+ groups to form a 2-D layer structure, which is further joined by Na+ to form a 3-D network. In 2, [H2W12O42]10- decorated by two [Cu(gly)2] moieties connects four adjacent clusters with six Na+ into a 2-D layer. In addition, luminescence and photocatalysis properties of these compounds have been investigated.
  Shiwei Lin , Qiong Wu , Huaqiao Tan and Enbo Wang
  An organic−inorganic hybrid based on Mn−salen and decavanadate, [NH4]2[Mn(salen)(H2O)2]4[V10O28] · 6H2O (1) (salen = N,N’-ethylene-bis(salicylideneiminate)), has been synthesized by the strategy of secondary building units in mixed methanol−water solution and was structurally characterized by single-crystal X-ray diffraction, elemental analyses, IR, and UV-Vis. The [Mn(salen)(H2O)2]+ cations and water molecules are located in the interspaces among the polyoxoanions [V10O28]6− forming a POM−based supramolecule. Compound 1 is the first example of metal-Schiff-base polyoxovanadates. The photocatalytic analysis, cyclic voltammetry, and electrocatalytic analysis of 1 have been investigated.
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