Crystal structure and Hirshfeld surface analysis of poly[[bis[μ4-N,N′-(1,3,5-oxadiazinane-3,5-diyl)bis(carbamoylmethanoato)]nickel(II)tetrapotassium] 4.8-hydrate]
| Autor: | Alina O. Husak, Turganbay S. Iskenderov, Nurullo U. Mulloev, Maksym O. Plutenko, Matti Haukka |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
crystal structure
Cyclohexane conformation shape analysis chemistry.chemical_element Crystal structure 010402 general chemistry Ring (chemistry) 01 natural sciences Research Communications pseudomacrocyclic ligand chemistry.chemical_compound template reaction SHAPE analysis Amide hirshfeld surface analysis Hirshfeld surface analysis General Materials Science Crystallography 010405 organic chemistry Hydrogen bond nickel(ii) complex General Chemistry Condensed Matter Physics nickel(II) complex 3. Good health 0104 chemical sciences Template reaction Nickel chemistry QD901-999 Hydrate hydrazide-based ligand |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 3, Pp 298-304 (2021) Acta Crystallographica Section E: Crystallographic Communications |
| Popis: | The complex nickel(II) anion comprises a pseudomacrocyclic hydrazide-based ligand with an L shape. In the crystal, such anions are connected with the potassium cations and the water solvent molecules, forming a three-dimensional polymeric framework, which is stabilized by an extensive system of hydrogen bonds. The title compound, {[K4Ni2(C7H6N4O7)2]·4.8H2O}n, was obtained as a result of a template reaction between oxalohydrazidehydroxamic acid, formaldehyde and nickel(II) nitrate followed by partial hydrolysis of the formed intermediate. The two independent [Ni(C7H6N4O7)]2– complex anions exhibit pseudo-C S symmetry and consist of an almost planar metal-containing fragment and a 1,3,5-oxadiazinane ring with a chair conformation disposed nearly perpendicularly with respect to the former. The central NiII atom has a square-planar N2O2 coordination arrangement formed by two amide N and two carboxylate O atoms. In the crystal, the nickel(II) complex anions form layers parallel to the ab plane. Neighboring complex anion layers are connected by layers of potassium cations for which two of the four independent cations are disordered over two sites [ratios of 0.54 (3):0.46 (3) and 0.9643 (15):0.0357 (15)]. The framework is stabilized by an extensive system of hydrogen bonds where the water molecules act as donors and the carboxylic O atoms, the amide O atoms and the oxadiazinane N atoms act as acceptors. |
| Databáze: | OpenAIRE |
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