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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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Mandal J, Dey A, Sarkar S, Khatun M, Ghorai P, Ray PP, Mahata P, Saha A. Chromone-Based Cd(II) Fluorescent Coordination Polymer Fabricated to Study Optoelectronic and Explosive Sensing Properties. Inorg Chem 2024; 63:4527-4544. [PMID: 38408204 DOI: 10.1021/acs.inorgchem.3c03646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Here, electrical conductivity and explosive sensing properties of multifunctional chromone-Cd(II)-based coordination polymers (CPs) (1-4) have been explored. The presence of different pseudohalide linkers, thiocyanate ions, and dicyanamide ions resulted in 1D and 3D architecture in the CPs. Thin film devices developed from CPs 1-4 (complex-based Schottky devices, CSD1, CSD2, CSD3, and CSD4, respectively) showed semiconductor behavior. Their conductivity values increased under photo illumination (1.37 × 10-5, 1.85 × 10-5, 1.61 × 10-5, and 2.01 × 10-5 S m-1 under dark conditions and 5.06 × 10-5, 8.78 × 10-5, 7.26 × 10-5, and 10.21 × 10-5 S m-1 under light). The nature of the I-V plots of these thin film devices under light irradiation and dark are nonlinear rectifying, which has been observed in Schottky barrier diodes (SBDs). All four CPs (1-4) exhibited highly selective fluorescence quenching-based sensing properties toward well-known explosives, 2,4-dinitrophenol (DNP) and 2,4,6-trinitrophenol (TNP). The limit of detection (LOD) values are 55, 28, 27, and 31 μM for TNP and 78, 44, 32, and 41 μM for DNP for complexes 1-4, respectively. A structure property correlation has been established to explain optoelectronic and explosive sensing properties.
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Affiliation(s)
- Jayanta Mandal
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Arka Dey
- Department of Physics, Jadavpur University, Kolkata 700032, India
- Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sec. III, Salt Lake, Kolkata 700106, India
| | - Sourav Sarkar
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Mohafuza Khatun
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Pravat Ghorai
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
- Electric Mobility and Tribology Research Group, CSIR-Central Mechanical Engineering Research Institute, Durgapur 713209, India
| | | | - Partha Mahata
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Amrita Saha
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
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Synthesis, Molecular, and Supramolecular Structures of Two Azide-Bridged Cd(II) and Cu(II) Coordination Polymers. Symmetry (Basel) 2023. [DOI: 10.3390/sym15030619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
Two 1D coordination polymers were synthesized by reaction of two ligands, 2-amino-4-picoline (2A4Pic) and quinoline-6-carboxylic acid (Qu-6-COOH) with two metal (II) nitrate (M = Cd and Cu) in the presence of azide as a linker. The synthesized metal complexes [Cd(2A4Pic)2(N3)2]n; (1) and [Cu(Qu-6-COO)(N3)(H2O)]n; (2) were isolated in single crystals and their X-ray structures revealed a 1D polymeric structure. Due to symmetry considerations, the asymmetric formula is half a [Cd(2A4Pic)2(N3)2] unit for 1 and one [Cu(Qu-6-COO)(N3)(H2O)] unit for 2. In complex 1, the Cd(II) is hexa-coordinated with two 2A4Pic molecules and four μ(1,1) azide units. Hence, the CdN6 coordination environment has a slightly distorted octahedral geometry. In 2, the Cu(II) is hexa-coordinated with three different ligands (Qu-6-COO¯, H2O and μ(1,1) N3¯) where all are connectors between the crystallographically related Cu(II) sites. Additionally, complex 2 distorted CuN2O4 octahedral geometry. In both complexes, the polymer arrays are connected by N…H hydrogen bonds and π–π stacking interactions. Based on Hirshfeld analysis, the percentages of N…H contacts are 43.1 and 27.4% for 1 and 2, respectively, while %C...C are 5.6 and 9.3%, respectively. Analysis of Cu-N, Cu-O, and Cd-N bonds using DFT calculations showed predominantly closed-shell coordination interactions with little covalent characters. Additionally, the negatively charged ligand groups were found to compensate the positive charge of the central metal ion to a larger extent than the electrically neutral ligands.
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Synthesis, Structure and Magnetic Studies of a Ni(II) Coordination Polymer Constructed from Asymmetrical Tetracarboxylic Acid and N-Donor Ligand. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02088-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Supramolecular isomerism in two nickel(II) coordination polymers constructed with the flexible 2-carboxyphenoxyacetate linker: Syntheses, structure analyses and magnetic properties. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121799] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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He YC, Wang Y, Zhao FH, Wang YC, Wang KX, Yang HK, Xu N. Syntheses, structures and properties of two Ni(II) coordination polymers based on an anionic ligand deprotonated 5-((3-carboxyphenoxy)methyl)benzene-1,3-dioic acid and different neutral ligands. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Sindhu P, Prasoon A, Rana S, Ballav N. Emergent Interface in Heterostructured Thin Films of Cu(II) and Cu(I) Coordination Polymers. J Phys Chem Lett 2020; 11:6242-6248. [PMID: 32659093 DOI: 10.1021/acs.jpclett.0c01735] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work we report fabrication of high-quality AB- and BA-type heterostructured thin films of cubic Cu(II) (A-type) and tetragonal Cu(I) (B-type) coordination polymers (CPs) on the functionalized Au substrate by the layer-by-layer method. Successful growth of Cu(I)-CP on top of Cu(II)-CP was assigned to be due to the interfacial reduction reaction (IRR). Notably, electrical transport measurements across AB- and BA-type heterostructured thin films revealed rectification of current in opposite directions. We have attributed such an interestingly new observation to the formation of a well-defined interface of Cu(II)-CP and Cu(I)-CP resembling a p-n junction-a hitherto unreported phenomenon that is anticipated to open enormous opportunities for the heterostructured thin films of CPs, likewise celebrated interfaces of oxide heterostructures.
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Affiliation(s)
- Pooja Sindhu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pune 411 008, India
| | - Anupam Prasoon
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pune 411 008, India
| | - Shammi Rana
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pune 411 008, India
| | - Nirmalya Ballav
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pune 411 008, India
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