Comprehensive Exploration of Optics and Magnetism in a Hydrothermally Synthesized Nickel(II) Complex.

Autor: Hchicha K; Laboratory Physico Chemistry of the Solid State, Department of Chemistry, Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia., Msalmi R; Laboratory Physico Chemistry of the Solid State, Department of Chemistry, Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia., Korb M; Faculty of Sciences, School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, Western Australia 6009, Australia., Wahbi H; Department of Chemistry, College of Sciences and Arts, Turaif, Northern Border University, Arar, Saudi Arabia., Čižmár E; Faculty of Science, Institute of Physics, P.J. Šafárik University in Košice, Park Angelinum 9, SK-041 54 Košice, Slovakia., Hamdi M; Department of Chemistry, College of Sciences and Arts, Turaif, Northern Border University, Arar, Saudi Arabia., Naïli H; Laboratory Physico Chemistry of the Solid State, Department of Chemistry, Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2024 Jun 26; Vol. 9 (27), pp. 29310-29319. Date of Electronic Publication: 2024 Jun 26 (Print Publication: 2024).
DOI: 10.1021/acsomega.4c00421
Abstrakt: The hydrothermal reaction of 2-MeIm (2-MeIm: 2-methylimidazole) with nickel sulfate hexahydrate in methanol afforded a mononuclear complex formulated as [Ni(SO 4 )(2-MeIm) 2 (H 2 O) 3 ]·CH 3 OH (1). The title compound was described by X-ray single-crystal diffraction, thermal assessment, IR, and UV-vis spectroscopy. The crystal structure of 1 is composed of segregated [Ni(SO 4 )(2-MeIm) 2 (H 2 O) 3 ] neutral entities and a solvent methanol molecule. Two (2-MeIm) ligands, a sulfate group, and a water molecule reside in the equatorial positions of the vertices in this 6-fold coordination. Two aqua ligands lay in the apical positions, resulting in a subtly distorted octahedral framework, as was supported by spectroscopic analysis. The complex's self-assembly is firmly governed by robust O-H···O/N-H···O interactions. Further details on these bonds have been furnished via Hirshfeld surface scrutiny and 2D fingerprint plots. As proven by TGA/DSC analysis, raising the temperature of 1 above 60 °C instigates progressive decomposition stages, which culminates in the production of metal oxide as the ultimate product at 700 °C. The optical analysis suggests the dielectric nature of the material with large direct and indirect gap energies of 5.25 and 4.96 eV, respectively. The results of magnetic studies suggest that 1 undergoes a transition to a magnetically ordered state below 6 K.
Competing Interests: The authors declare no competing financial interest.
(© 2024 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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