A Polyoxometalate-templated Inorganic-Organic Hybrid Compound Containing a Crown-like Metallamacrocyclic Cation [Ag6(1,2,4-triazole)6]6+

2008 ◽  
Vol 63 (5) ◽  
pp. 489-495 ◽  
Author(s):  
Xiang-Min Chen ◽  
De-Song Wang ◽  
Qing-Zhi Luo ◽  
Ran Wang
Keyword(s):  
Supramolecular Framework ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Hybrid Compound ◽  
X Ray ◽  
Organic Hybrid ◽  
Good Electrocatalytic Activity ◽  
Elemental Analyses ◽  
Keggin Anions ◽  
Redox Ability

A new polyoxometalate(POM)-templated inorganic-organic hybrid compound, [Ag6(trz)6]- [PMo12O40]2 ・ 6H2O (1) (trz = 1,2,4-triazole) has been prepared under hydrothermal conditions and characterized by single-crystal X-ray diffraction, elemental analyses, IR spectroscopy, thermogravimetric analysis and cyclic voltammetry. In compound 1, six Ag+ ions are linked by six trz molecules to give a hexanuclear [Ag6(trz)6]6+ cycle. The six trz molecules are not co-planar, but adopt a crown-like shape. Cavities, with sizes of about 7.706×7.706 Å2, are found with the hexanuclear cycles packed along the c axis. The Keggin anions, as templates, are inserted in the 3D supramolecular framework. The electrochemical and electrocatalytic behavior of 1 has been studied in detail. The results exhibit that the redox ability of the Keggin anions can be maintained in the hybrid solid which has good electrocatalytic activity toward the reduction of bromate, hydrogen peroxide and nitrite.

A molecular crown analogue templated by Keggin polyanions: synthesis, structure, and electrochemical and luminescent properties

2015 ◽  
Vol 70 (8) ◽  
pp. 547-553 ◽  
Author(s):  
Chunyan Zhao ◽  
Huiyuan Ma ◽  
Haijun Pang ◽  
Yan Yu ◽  
Shaobin Li ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Infrared Spectroscopy ◽  
Luminescent Properties ◽  
Intermolecular Hydrogen Bonding ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Hybrid Compound ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Elemental Analyses

AbstractA hybrid compound, [CuI4(bpmb)4][PWVI11WVO40] (1) (bpmb = 1,4-bis(pyrazol-1-ylmethyl)benzene), has been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction analysis, infrared spectroscopy, elemental analyses and powder X-ray diffraction. In compound 1 crown-like [Cu4(bpmb)4]4+ macrocycles templated by Keggin-type [PWVI11WVO40]4− polyanions (abbreviated PW12) exist. Supramolecular layers are formed by intermolecular hydrogen bonding interactions of discrete crown-like [Cu4(bpmb)4]4+ macrocycles and [PWVI11WVO40]4− polyanions. The electrochemical and luminescence properties of compound 1 were investigated.

A 2-D Zn(II) coordination polymer based on 4,5-imidazoledicarboxylate and bis(benzimidazole) ligands: synthesis, crystal structure and fluorescence properties

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Xinzhao Xia ◽  
Lixian Xia ◽  
Geng Zhang ◽  
Yuxuan Jiang ◽  
Fugang Sun ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Zigzag Chain ◽  
Supramolecular Framework ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Hydrogen Bond Interaction ◽  
X Ray ◽  
New Type ◽  
Solid State Fluorescence

Abstract In this work, a new type of zinc(II) coordination polymer {[Zn(HIDC)(BBM)0.5]·H2O} n (Zn-CP) was synthesized using 4,5-imidazoledicarboxylic acid (H3IDC) and 2,2-(1,4-butanediyl)bis-1,3-benzimidazole (BBM) under hydrothermal conditions. Its structure has been characterized by infrared spectroscopy, elemental analysis and single crystal X-ray diffraction analysis. The Zn(II) ion is linked by the HIDC2− ligand to form a zigzag chain by chelating and bridging, and then linked by BBM to form a layered network structure. Adjacent layers are further connected by hydrogen bond interaction to form a 3-D supramolecular framework. The solid-state fluorescence performance of Zn-CP shows that compared with free H3IDC ligand, its fluorescence intensity is significantly enhanced.

Synthesis, Crystal Structure and Luminescence Properties of the Inorganic-Organic Hybrid Compound [FTMA]2[CdI4] (FTMA = Ferrocenylmethyltrimethylammonium Cation)

2011 ◽  
Vol 66 (5) ◽  
pp. 549-552
Author(s):  
Yan Bai ◽  
Guo Qiang Zhang ◽  
Dong Bin Dang ◽  
Ze Yan Qi ◽  
Li Zhang
Keyword(s):  
Solid State ◽  
Title Compound ◽  
Chain Structure ◽  
Luminescence Properties ◽  
X Ray Diffraction ◽  
Hybrid Compound ◽  
X Ray ◽  
Organic Hybrid ◽  
A Chain ◽  
Distorted Tetrahedral Coordination

The title compound [FTMA]2[CdI4] has been synthesized from [FTMA]I (ferrocenylmethyltrimethylammonium iodide) and 3CdSO4・8H2O and was characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The Cd(II) atom has a slightly distorted tetrahedral coordination sphere. In the solid state there are C-H・ ・ ・π interactions between adjacent ferrocenyl cations to generate a chain structure. The luminescence properties of the title compound were investigated in the solid state at room temperature

A New Wells-Dawson-based Organic-Inorganic Honeycomb Hybrid Compound with Cadmium Bis(2,2´-biimidazole) Spacers

2014 ◽  
Vol 69 (8) ◽  
pp. 871-877
Author(s):  
Jun Ying ◽  
Ya-li Ning ◽  
Xue Hou ◽  
Ru Xiao ◽  
Ju-wen Zhang ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Single Crystal ◽  
Title Compound ◽  
Photocatalytic Properties ◽  
X Ray Diffraction ◽  
Hybrid Compound ◽  
X Ray ◽  
Elemental Analyses ◽  
Cadmium Salt ◽  
Oxygen Atoms

A new Wells-Dawson-based organic-inorganic honeycomb hybrid compound, namely [Cd3(H2biim)6P2W18O62]·2H2O (1) (H2biim=2,2´-biimidazole), was hydrothermally synthesized by using a cadmium salt, the biimidazole ligand and the Wells-Dawson-type POM, and characterized by single-crystal X-ray diffraction, elemental analyses and IR spectroscopy. In compound 1, each polyoxoanion cluster [P2W18O62]6- is coordinated by six [Cd(H2biim)2]2+ subunits via six of its terminal oxygen atoms on two equatorial sites. Each [Cd(H2biim)2]2+ subunit links two adjacent polyoxoanions. Thus, the linking styles of the [P2W18O62]6- and [Cd(H2biim)2]2+ subunits induce a honeycomb-like layer. The electrochemical and photocatalytic properties of the title compound have been studied.

Preparation and application of two novel supramolecular polyoxmetalates with adsorption of organic contaminants in wastewater

2021 ◽  
Vol 20 (1) ◽  
pp. 69-79
Author(s):  
Wen-Hao Yang ◽  
Ying Pei ◽  
Hao-Yu Du ◽  
Shang-Hao Xiao ◽  
Xiu-Jun Wu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Ir Spectra ◽  
Rhodamine B ◽  
Organic Contaminants ◽  
Organic Dyes ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Adsorption Effect ◽  
X Ray ◽  
Elemental Analyses

Two new supramolecular polyoxmetalates were synthesized from 1, 4-bis[4-nitrile-pyridine)-N-methylene]phenyldibromide (L1) and 1, 2-bis[4-nitrile-pyridine)-N-methylene]phenyldibromide (L2) and (NH4)6Mo7–O24·4H2O under hydrothermal conditions. They are named p-[C20H18N2O4][Mo8O26] 0.5·H2O (1) and o-[C20H18N2O4][Mo8O26] ċ 0.5·H2O (2) respectively. The structures have been confirmed through single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra. The adsorption test of compound 1 and compound 2 in organic dyes were carried out. It was found that compound 1 had a good adsorption effect on methylene blue (MB) and rhodamine B (RhB). The adsorption effect of compound 2 on MB is stronger than that of compound 1.

A supramolecular 3-D organic-inorganic hybrid structure based on {PMo12} layers arranged in an alternating mode

2015 ◽  
Vol 70 (5) ◽  
pp. 311-316
Author(s):  
Yue Cao ◽  
Kai Yu ◽  
Chun-mei Wang ◽  
Chun-xiao Wang ◽  
Zhan-hua Su ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Room Temperature ◽  
Hybrid Structure ◽  
Supramolecular Network ◽  
X Ray Diffraction ◽  
Hybrid Compound ◽  
Form Complex ◽  
Inorganic Hybrid ◽  
X Ray ◽  
Good Electrocatalytic Activity

AbstractAn organic-inorganic hybrid compound based on {PMo12} layers, [Ag(pz)2]6[PMo12O40]2·3H2O 1 (pz = pyrazole), has been hydrothermally synthesized and characterized by elemental analysis, TG, IR spectroscopy, and single-crystal X-ray diffraction. Two crystallographically independent [PMo12O40]3– clusters are arranged in an AB–AB mode to give two kinds of supramolecular layers. The layers are further connected in a special alternating mode by [Ag(pz)2]+ linkers to form complex 3-D supramolecular network. Compound 1 exhibits good electrocatalytic activity in the reduction of hydrogen peroxide and shows fluorescence in the solid state at room temperature.

Three 3D Metal-Organic Frameworks Constructed from Keggin Polyanions and Multi-nuclear AgI Clusters: Assembly, Structures and Properties

2013 ◽  
Vol 68 (7) ◽  
pp. 778-788 ◽  
Author(s):  
Xiu-Li Wang ◽  
Na Li ◽  
Ai-Xiang Tian ◽  
Jun Ying ◽  
Guo-Cheng Liu ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Metal Organic Frameworks ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Structures And Properties ◽  
Elemental Analyses ◽  
Metal Organic ◽  
New Compounds ◽  
Inorganic Ligands

Three Keggin-based metal-organic frameworks (MOFs) containing multi-nuclear silver subunits, [Ag7(ptz)5(H2O)2][H2SiMo12O40] (1), [Ag8(ptz)5(H2O)2][AsW12O40] (2) and [Ag7(ptz)5(H2O)][HAsMo12O40] (3) (ptzH=5-(4-pyridyl)-tetrazole), have been synthesized under hydrothermal conditions by changing the inorganic polyanions. The new compounds have been characterized by elemental analyses, TG analyses, IR spectroscopy, and single-crystal X-ray diffraction. In compound 1, the multi-nuclear Ag5(ptz)5 subunits are interconnected to form chains, which are further linked by AgI cations to construct a 3D MOF with large channels. Pairs of SiMo12O404- polyanions reside in the channels as penta-dentate inorganic ligands. In 2, six AgI cations link five ptz- anions to construct a hexa-nuclear subunit [Ag6(ptz)5]+, which is interconnected to form chains. These chains are further linked by AgI cations to construct a 3D MOF, where AsW12O403- polyanions reside as hexa-dentate ligands. Compound 3exhibits a 3D MOF based on Ag5(ptz)5 subunits, in which the hexa-dentate AsMo12O403- polyanions are incorporated. The rigid tetrazole-based ligand ptz- plays an important role in the formation of the multi-nuclear subunits of the title compounds. The electrochemical properties of compound 1and the photocatalytic properties of compounds 1and 3have been investigated.

A polyoxometalate-based inorganic–organic hybrid material: synthesis, characterization structure and photocatalytic study

2015 ◽  
Vol 70 (7) ◽  
pp. 461-466 ◽  
Author(s):  
Jingzhi Tian ◽  
Tao Jing ◽  
Yongjie Zheng
Keyword(s):  
Hybrid Material ◽  
Rhodamine B ◽  
X Ray Diffraction ◽  
Material Synthesis ◽  
Hybrid Compound ◽  
X Ray ◽  
Organic Hybrid ◽  
Rhodamine B Dye ◽  
Supramolecular Chains ◽  
Organic Hybrid Material

AbstractA new polyoxometalate (POM)-based inorganic–organic hybrid compound, [Ag2(bib)3][H2SiW12O40] (1), has been hydrothermally synthesized and characterized by routine methods. Single-crystal X-ray diffraction analysis reveals that inorganic supramolecular chains constructed of POM and [Ag2(bib)3] subunits are fused together via the Ag cations forming a 3D supramolecular structure. The structure possesses the moganite-type topology. The photocatalytic properties have been investigated through the oxidative decomposition of Rhodamine-B dye.

scholarly journals Synthesis and Characterization of Bis(4-methylbenzylammonium) Tetrachloridocadmate(II)

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
R. Kefi ◽  
M. Zeller ◽  
F. Lefebvre ◽  
C. Ben Nasr
Keyword(s):  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Hybrid Compound ◽  
Coordination Environment ◽  
X Ray ◽  
Organic Hybrid ◽  
Distorted Octahedral ◽  
Cp Mas Nmr

The crystal structure of the new inorganic-organic hybrid compound [4-CH3C6H4CH2NH3]2[CdCl4] has been determined by single crystal X-ray diffraction. The compound crystallizes in the orthorhombic space group Pnma with lattice parameters a=10.721(2), b=33.986(6), c=5.326(1) Å, β=97.222(1)°, V=1940.8(7) Å3, and Z=4. The framework of the title compound is built upon layers parallel to (010) made up from corner-sharing CdCl6 octahedra. 4-Methylbenzylammonium cations are situated between the layers and connect them via an N–H⋯Cl hydrogen bonding network. The Cd atom is located on an inversion centre, and the coordination environment is described as distorted octahedral. Solid state 13C CP-MAS NMR spectroscopy is in agreement with the X-ray structure. DFT calculations allow the attribution of the carbon peaks to the independent crystallographic sites. Thermal analysis and infrared spectroscopy were also used to characterize the complex.

An inorganic–organic hybrid supramolecular framework based on the γ-[Mo8O26]4− cluster and cobalt complex of aspartic acid: X-ray structure and DFT study

2019 ◽  
Vol 75 (4) ◽  
pp. 469-477 ◽  
Author(s):  
Morteza Tahmasebi ◽  
Masoud Mirzaei ◽  
Hossein Eshtiagh-Hosseini ◽  
Joel T. Mague ◽  
Antonio Bauzá ◽  
...  
Keyword(s):  
Aspartic Acid ◽  
Density Functional ◽  
Diffuse Reflectance Spectroscopy ◽  
Cobalt Complex ◽  
Three Dimensional ◽  
Side Chain ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Organic Hybrid ◽  
Elemental Analyses

A new inorganic–organic hybrid based on an aspartate functionalized polyoxomolybdate, [pentaaquacobalt(II)]-μ-aspartate-[γ-octamolybdate]-μ-aspartate-[pentaaquacobalt(II)] tetrahydrate, [Co2(C4H6NO4)2(γ-Mo8O26)(H2O)10]·4H2O (1), has been synthesized under hydrothermal conditions from the reaction of an Evans–Showell-type polyoxometalate, (NH4)6[Co2Mo10H4O38], and L-aspartic acid. The complex exhibits a supramolecular three-dimensional framework structure in the crystal lattice. Compound 1 was structurally characterized by elemental analyses, IR and UV–Vis (diffuse reflectance) spectroscopy and single-crystal X-ray diffraction. In this compound, aspartic acid acts as a bridge between the two Co atoms and the Mo centres, with the –CH2COOH side chain directly linked to the Mo centre in γ-[Mo8O26]4− and the α-carboxylate side chain bound to the Co centre. Commonly, the binding of transition-metal complexes to POMs involves coordination of the metal to a terminal O atom of the POM so that 1, with a bridging ligand between Mo and Co atoms, belongs to a separate class of hybrid materials. While the starting materials are both chiral and one might expect them to form a chiral hybrid, the decomposition of the chiral Evans–Showell-type POM and its conversion to the centrosymmetric γ-octamolybdate POM, plus the presence of two aspartate ligands centrosymmetrically placed on either side of the POM, leads to the formation of an achiral hybrid. We have studied energetically by means of density functional theory (DFT) calculations and using the Bader's `atoms-in-molecules' analysis the electrostatically enhanced hydrogen bonds (EEHBs) observed in the solid state of 1, which are crucial for the formation of one-dimensional supramolecular assemblies.

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