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Hannachi A, El Bakri Y, Saravanan K, Gómez-García CJ, Abuelizz HA, Al-Salahi R, Smirani W. Metamagnetism and canted antiferromagnetic ordering in two monomeric Co II complexes with 1-(2-pyrimidyl)piperazine. Hirshfeld surface analysis and theoretical studies. RSC Adv 2024; 14:11557-11569. [PMID: 38601708 PMCID: PMC11004733 DOI: 10.1039/d4ra00716f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/22/2024] [Indexed: 04/12/2024] Open
Abstract
Here we present the magnetic properties of two cobalt complexes formulated as: [Co(SCN)2(L)2] (1) and (H2L)2[Co(SCN)4]·H2O (2) (L = 1-(2-pyrimidyl)piperazine). The two compounds contain isolated tetrahedral CoII complexes with important intermolecular interactions that lead to the presence of a canted antiferromagnetic order below 11.5 and 10.0 K, with coercive fields at 2 K of 38 and 68 mT, respectively. Theoretical calculations have been used to explain this behaviour. Hirshfeld surface analysis shows the presence of strong intermolecular interactions in both compounds. The crystal geometries were used for geometry optimization using the DFT method. From the topological properties, electrostatic potential maps and molecular orbital analysis, information about the noncovalent interaction and chemical reactivity was obtained.
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Affiliation(s)
- Anissa Hannachi
- Laboratory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage 7021 Zarzouna Bizerte Tunisia
| | - Youness El Bakri
- Department of Theoretical and Applied Chemistry, South Ural State University Lenin Prospect 76 Chelyabinsk 454080 Russian Federation
| | | | - Carlos J Gómez-García
- Departamento de Química Inorgánica, Universidad de Valencia C/Dr Moliner 50, 46100 Burjasot Valencia Spain
| | - Hatem A Abuelizz
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University Riyadh 11451 Saudi Arabia
| | - Rashad Al-Salahi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University Riyadh 11451 Saudi Arabia
| | - Wajda Smirani
- Laboratory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage 7021 Zarzouna Bizerte Tunisia
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Investigation on the molecular, Electronic, Biological and Spectroscopic properties of a novel cobalt complex: An intuition from an experimental and computational perspective. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Makhlouf J, Louis H, Benjamin I, Ukwenya E, Valkonen A, Smirani W. Single crystal investigations, spectral analysis, DFT studies, antioxidants, and molecular docking investigations of novel hexaisothiocyanato chromate complex. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Ferchichi A, Makhlouf J, El Bakri Y, Saravanan K, Valkonen A, Hashem HE, Ahmad S, Smirani W. Self-assembly of new cobalt complexes based on [Co (SCN) 4], synthesis, empirical, antioxidant activity, and quantum theory investigations. Sci Rep 2022; 12:15828. [PMID: 36138056 PMCID: PMC9500081 DOI: 10.1038/s41598-022-18471-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/12/2022] [Indexed: 11/09/2022] Open
Abstract
The cobalt (II) complexes have been synthesized from the reaction of the cationic entities (3,4-dimethylaniline (1) and histamine (2)) with metallic salt CoCl2⋅6H2O and thiocyanate ion (SCN−) as a ligand in H2O/ethanolic solution and processing by the evaporation crystal growth method at room temperature to get crystals. The synthesized complex has been fully characterized by single-crystal X-ray diffraction. UV–Visible, FTIR spectroscopy, TGA analysis, and DFT circulations were also performed. The crystal structural analysis reveals that the solid (1) {[Co(SCN)4] (C8H12N)3}·Cl crystallizes in the monoclinic system with the space group P21/n and the solid (2) {[Co(SCN)4](C5H11N3)2}·2Cl crystallizes in the monoclinic space group P21/m. Metal cations are joined into corrugated chains parallel to the b-axis direction in (1) and (2) by four thiocyanate anions. The crystal structures of (1) and (2) were calculated using XRPD data, indicating that they are closely connected to the DRX mono-crystal results. Different interactions pack the system into a ring formed by N–H⋯Cl and N–H⋯S hydrogen bonds. C–H⋯π and the π⋯π stacking of anilinuim ring for (1) and N–H⋯S intermolecular interactions for (1) and (2) increase the crystals' robustness. Hirshfeld surface analysis cum 2D fingerprint plots visualize the main intermolecular interactions with their contributions in the solid-state phase. The molecular geometries of both complexes obtained from the crystal structure were used for quantum chemical calculation. Here, frontier orbital analysis and electrostatic potential illustrate the chemical reactivities of metal–organic complexes. QTAIM and NCI analysis reveal the strength of interactions at the electronic level.
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Affiliation(s)
- Amal Ferchichi
- Labortory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
| | - Jawher Makhlouf
- Labortory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
| | - Youness El Bakri
- Department of Theoretical and Applied Chemistry, South Ural State University, Lenin Prospect 76, Chelyabinsk, Russian Federation, 454080
| | | | - Arto Valkonen
- Department of Chemistry, University of Jyvaskyla, 40014, Jyvaskyla, Finland
| | - Heba E Hashem
- Department of Chemistry, Faculty of Women, Ain Shams University, Cairo, Egypt.
| | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar, 25000, Pakistan
| | - Wajda Smirani
- Labortory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
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Makhlouf J, Valkonen A, Smirani Sta W. Growth, single crystal investigation and physico-chemical properties of thiocyanate coordination compounds based on 1,4-dimethylpiperazine. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2102905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Jawher Makhlouf
- Laboratory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
| | - Arto Valkonen
- Department of Chemistry, University of Jyvaskyla, Jyvaskyla, Finland
| | - Wajda Smirani Sta
- Laboratory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
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