A novel oxalate-based three dimensional polymorphs supramolecular compounds: Synthesis, spectroscopic characterization, magnetic and photocatalytic properties
| Autor: | N. Chniba-Boudjada, Saoussen Namouchi Cherni, F. Fettar, Rihab Dridi, Mohamed Faouzi Zid |
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| Přispěvatelé: | Université de Tunis El Manar (UTM), Surfaces, Interfaces et Nanostructures (SIN), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA), Matériaux, Rayonnements, Structure (MRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Benzimidazole
010405 organic chemistry Hydrogen bond Organic Chemistry Oxalic acid Supramolecular chemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences Oxalate 0104 chemical sciences Analytical Chemistry Inorganic Chemistry Metal Chromium chemistry.chemical_compound Crystallography chemistry spectroscopic characterization visual_art visual_art.visual_art_medium [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Molecule magnetic and photocatalytic properties Spectroscopy |
| Zdroj: | Journal of Molecular Structure Journal of Molecular Structure, Elsevier, 2020, 1205, pp.127573. ⟨10.1016/j.molstruc.2019.127573⟩ |
| ISSN: | 0022-2860 |
| Popis: | Two metal complexes (C7H7N2)[Cr(C2O4)2(H2O)2]·2H2O (1) and (C7H7N2)3 [Cr(C2O4)3](H2C2O4)·3H2O (2), have been synthesized by self-assembly of a benzimidazole ligand and oxalic acid anion with chromium (III) as metal. The complexes (1) and (2) were characterized by single crystal X-ray diffraction, TG analysis and spectroscopy techniques. The molecular structure of complexes (1) and (2) appear to be a modular associate consisting of a complex anion containing trivalent Cr as the central atom, a bridging hydrogen oxalate anion, a monoprotonated benzimidazole acting as the counter-cation and water molecules. The atomic arrangement of complexes (1) and (2) can be described as inorganic layers of anionic chromium complex and water molecules between which organic cations (C7H7N2)+ are located. The crystal packing of complexes (1) and (2) is ensured by extensive O–H⋯O and N–H⋯O hydrogen bonds. In addition, the magnetic properties of the complex (1) were determined in the range 1.8–300 K showing a very weak antiferromagnetic interactions between Cr(III) centers with a little contribution of ZFS effect. Moreover, complexes (1) and (2) exhibit significant degradation of methylene blue (MB) under sunlight irradiation. |
| Databáze: | OpenAIRE |
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