Five new multifunctional inorganic–organic hybrids based on Keggin-type polyoxometalates and a 3,5-di(1H-imidazol-1-yl)benzoic acid ligand

Abstract

Five new inorganic-organic hybrid compounds, [Co2(HDIBA)2(DIBA)2(H2O)4]·HPW12O40·2H2O (1); [Ni2(HDIBA)2(DIBA)2(H2O)4]·HPW12O40 (2); [Ag(H2DIBA)2·PW12O40]·2H2O (3); [Ag(H2DIBA)2·PMo12O40]·2H2O (4) and [Ag(H2DIBA)2·HSiMo12O40]·2H2O (5), (HDIBA = 3,5-di(1H-imidazol-1-yl)benzoic acid), based on Keggin-type polyoxometalates (POMs) have been synthesized by hydrothermal...

An Innovative SbIII–WVI-Cotemplated Antimonotungstate with Potential in Sensing Paroxetine Electrochemically

“…It is proved that these three pairs of redox peaks can be assigned to the redox process of W(VI) centers in 1. 90,91 Furthermore, the redox behavior of 1 in 0.1 M Na 2 SO 4 aqueous solution was also investigated. As depicted in Figure S12, 1 exhibits three pairs of redox peaks stemming from the redox process of W(VI) centers in 1, which are consistent with three pairs of redox peaks of 1@rGO/GCE and 1/GCE.…”

Boosting the High Working Voltage of an Aqueous Symmetric Supercapacitor by a Phosphotungstic Acid-Based Coordination Polymer Coating with Polypyrrole

“…After coating with PPy, peaks at 2θ = 20–30° corresponding to PPy , can be observed, again indicating the successful combination of CuPW 12 with PPy (Figures l and S6). To further confirm the composites of CuPW 12 @PPy ( n ), the IR spectra of CuPW 12 @PPy ( n ) were measured (Figures m and S7), where more specifically, peaks at 1061, 953, 881, and 776 cm –1 in CuPW 12 can be attributed to ν P–Oa , ν W–Od , ν W–Ob–W , and ν W–Oc–W , respectively. In comparison, peaks at 1539 and 1706 cm –1 belonging to PPy are found in CuPW 12 @PPy ( n ) nanocomposites.…”

Hexnuclear, octanuclear, dodecanuclear, and hexadecnuclear polyoxomolybdenum(v)-based porous materials for selective adsorption of gases

“…4 Polyoxometalates as building blocks have specific topological and chemical information that can be transferred to the final products to achieve configurable and diverse architectures. 5 According to the different construction methods, polyoxometalate-based porous materials can be roughly divided into four categories: (a) porous materials formed by covalent bonds with polyoxometalates as building units; [6][7][8] (b) supramolecular porous materials composed of polyoxometalate anions and cations (clusters); [9][10][11] (c) porous materials as the main body of the hybrid materials loaded with polyoxometalates; 12,13 (d) porous materials directly constructed from polyoxometalates. 14,15 Most polyoxometalate-based porous complexes are limited to polyoxometalate anions with known structures such as Keggin, Anderson or Dawson type as "molecular adapters", which are obtained by non-covalent or covalent action.…”