Single-crystal-to-single-crystal transformation and catalytic properties of new hybrid perhalidometallates
| Autor: | Stephany Zárate-Roldán, Raquel P. Herrera, M. Concepción Gimeno, Brahim Ayed, Manel Moncer, Irene Ara, Ali Rayes, Necmi Dege |
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| Přispěvatelé: | Ministerio de Economía y Competitividad (España), Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Gobierno de Aragón, European Commission |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Supramolecular chemistry
Protonation TP1-1185 010402 general chemistry 01 natural sciences Catalysis perhalidometallates acetalization Crystal Acetalization Molecule Hirshfeld surface analysis Thermal analysis Physical and Theoretical Chemistry QD1-999 catalysis 010405 organic chemistry Chemistry Chemical technology Intermolecular force X-ray crystal structure 0104 chemical sciences Crystallography Perhalidometallates Single crystal thermal analysis |
| Zdroj: | Catalysts, Vol 11, Iss 758, p 758 (2021) Digital.CSIC. Repositorio Institucional del CSIC instname Zaguán. Repositorio Digital de la Universidad de Zaragoza Catalysts Volume 11 Issue 7 |
| Popis: | This article belongs to the Special Issue Catalytic Approaches to Selective Elaboration of Organic Molecules. Two new organic–inorganic salts of perhalidometallates with protonated organic amine cations have been synthesized and characterized by X-ray diffraction and thermal analysis. (CHBMAH2)ZnBr4·3/2H2O 1 and (CHBMAH2)ZnCl4 4 [(CHBMAH2)2+: 1,3-cyclohexanebis(methylammonium)] were obtained in single-crystal form. The crystal packing in all of the obtained compounds is governed by the formation of various non-covalent intermolecular forces between tetrahalidometallate anions and organic cations, assisted by water molecules in the hydrates. Hirshfeld surface analysis denotes that the most important contributions to the crystal packing are X···H/H···X (X: Cl, Br, I) and H···H interactions. Interestingly, the compound 1,3-cyclohexanebis(methylammonium)tetrachloridozincate (II) dihydrate, (CHBMAH2)ZnCl4·2H2O 2, undergoes thermally-triggered single-crystal-to-single-crystal (SCSC) transformation upon dehydration to produce a supramolecular solid compound, 1,3-cyclohexanebis(methylammonium) tetrachloridozincate (II), (CHBMAH2)ZnCl4 4. The SCSC transformation causes changes in the lattice parameters and a structural rearrangement. Furthermore, the catalytic properties of (CHBMAH2)ZnCl4·2H2O 2 and (CHBMAH2)CdI4·2H2O 3 have been explored in the acetalization process using various uncommon alcohols, beyond methanol or ethanol, for the first time in the literature, with outstanding results, and opening the door to the formation of alternative acetals. This research was funded by Agencia Estatal de Investigación (AEI), projects CTQ2017-88091-P, PID2019-104379RB-C21, PID2020-117455GB-I00 and PGC2018-093451-B-I00 and Gobierno de Aragón-Fondo Social Europeo (Research Groups E07_20R and E17_17R). |
| Databáze: | OpenAIRE |
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