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Petrenko YP, Vynohradov OS, Khomenko DM, Doroshchuk RO, Raspertova IV, Shova S, Lampeka RD. Crystal structure and Hirshfeld-surface analysis of di-aqua-bis-(5-methyl-1 H-1,2,4-triazole-3-carboxyl-ato)copper(II). Acta Crystallogr E Crystallogr Commun 2024; 80:54-57. [PMID: 38312166 PMCID: PMC10833364 DOI: 10.1107/s2056989023010770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 02/06/2024]
Abstract
The title compound, [Cu(HL)2(H2O)2] or [Cu(C4H4N3O2)2(H2O)2], is a mononuclear octa-hedral CuII complex based on 5-methyl-1H-1,2,4-triazole-3-carb-oxy-lic acid (H2 L). [Cu(HL)2(H2O)2] was synthesized by reaction of H2 L with copper(II) nitrate hexa-hydrate (2:1 stoichiometric ratio) in water under ambient conditions to produce clear light-blue crystals. The central Cu atom exhibits an N2O4 coordination environment in an elongated octa-hedral geometry provided by two bidentate HL - anions in the equatorial plane and two water mol-ecules in the axial positions. Hirshfeld surface analysis revealed that the most important contributions to the surface contacts are from H⋯O/O⋯H (33.1%), H⋯H (29.5%) and H⋯N/N⋯H (19.3%) inter-actions.
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Affiliation(s)
- Yuliia P. Petrenko
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | - Oleksandr S. Vynohradov
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | - Dmytro M. Khomenko
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine
| | - Roman O. Doroshchuk
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine
| | - Ilona V. Raspertova
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | - Sergiu Shova
- "PetruPoni" Institute of Macromolecular Chemistry, Aleea Gr., GhicaVoda 41A, 700487 Iasi, Romania
| | - Rostyslav D. Lampeka
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
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García-López J, Khomenko DM, Zakharchenko BV, Doroshchuk RO, Starova VS, Iglesias MJ, Lampeka RD, López-Ortiz F. Solvent- and functional-group-assisted tautomerism of 3-alkyl substituted 5-(2-pyridyl)-1,2,4-triazoles in DMSO-water. Org Biomol Chem 2023; 21:9443-9458. [PMID: 37997179 DOI: 10.1039/d3ob01651j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
The tautomerism of a series of 5-alkyl substituted 3-(2-pyridyl)-1,2,4-triazoles in DMSO-d6-containing water has been investigated by 1H, 13C and 15N NMR spectroscopy. The populations of the three possible regioisomers in the tautomeric equilibrium (A [3-alkyl-5-(2-pyridyl)-1H], B [5-alkyl-3-(2-pyridyl)-1H] and C [5-alkyl-3-(2-pyridyl)-4H]) were determined. Isomers A (17-40%) and B (54-79%) are the major components and their ratio is insensitive to the substitution pattern, except for the unsubstituted and the methoxymethyl substituted derivatives. The isomer C (3-5%) has been fully characterised for the first time by NMR spectroscopy. Activation energies of tautomerisation (14.74-16.78 kcal mol-1) were determined by EXSY experiments, which also supported the involvement of water in the tautomerisation. Substituent effects on the 15N chemical shifts are relatively small. The DFT study of the tautomerism in DMSO-water showed that both A/B and B/C interconversions are assisted by the pyridine substituent and catalysed by solvent molecules. The NH-A/NH-B tautomerisation takes place via a relayed quadruple proton transfer mediated by three water molecules in the hydrogen-bonded cyclic substructure of a triazole·4H2O complex. The equilibrium B ⇄ C involves three steps: NH-B transfer to the pyridyl nitrogen mediated by a water molecule in a 1 : 1 cyclic complex, rotamerisation to bring the pyridinium NH close to N4 of the triazole catalysed by complexation to a DMSO molecule and transfer of the NH from the pyridinium donor to the N4 acceptor via a 1 : 1 complex with a bridging water molecule. This mechanism of 1,3-prototropic shift in triazoles is unprecedented in the literature.
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Affiliation(s)
- Jesús García-López
- Área de Química Orgánica, Research Centre CIAIMBITAL, Universidad de Almería, Carretera de Sacramento s/n, Almería, 04120, Spain.
| | - Dmytro M Khomenko
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64/13, Kyiv 01601, Ukraine.
| | - Borys V Zakharchenko
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64/13, Kyiv 01601, Ukraine.
| | - Roman O Doroshchuk
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64/13, Kyiv 01601, Ukraine.
| | - Viktoriia S Starova
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64/13, Kyiv 01601, Ukraine.
| | - María José Iglesias
- Área de Química Orgánica, Research Centre CIAIMBITAL, Universidad de Almería, Carretera de Sacramento s/n, Almería, 04120, Spain.
| | - Rostyslav D Lampeka
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64/13, Kyiv 01601, Ukraine.
| | - Fernando López-Ortiz
- Área de Química Orgánica, Research Centre CIAIMBITAL, Universidad de Almería, Carretera de Sacramento s/n, Almería, 04120, Spain.
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Petrenko YP, Bibik YS, Khomenko DM, Doroshchuk RO, Gural'skiy IA, Shova S, Lampeka RD, Raspertova IV. Synthesis and crystal structure of hydrated μ-oxalato-bis{bis[3-methyl-5-(pyridin-2-yl)-1 H-1,2,4-triazole]iron(II)} bis(toluenesulfonate) 2.75-hydrate. Acta Crystallogr E Crystallogr Commun 2022; 78:829-832. [PMID: 35974812 PMCID: PMC9361385 DOI: 10.1107/s2056989022007460] [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: 07/05/2022] [Accepted: 07/20/2022] [Indexed: 11/10/2022]
Abstract
In the title compound [Fe2(C2O4)(C8H8N4)4](CH3C6H4SO3)2·2.75H2O, the two FeII ions have a highly distorted octahedral FeN4O2 environment formed by two bidentate triazole-based chelating ligands and a bis-bidentate oxalate bridging anion that connects the metal ions. Stabilization within the crystal structure is provided via a system of O—H...O and N—H...O hydrogen bonding, which determines the formation of a two-dimensional architecture along the a-axis direction.
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Synthesis, structural characterization and anticancer properties of p-cymene Ru(II) complexes with 2-(N-methyl-1H-1,2,4-triazol-3-yl)pyridines. TRANSIT METAL CHEM 2022. [DOI: 10.1007/s11243-022-00503-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Solid Phase Luminescence and Thermal Transformations of Palladium(II) Complexes with 3-(2-Pyridyl)-1,2,4-Triazoles. THEOR EXP CHEM+ 2022. [DOI: 10.1007/s11237-021-09705-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zakharchenko BV, Khomenko DM, Doroschuk RO, Raspertova IV, Shova S, Grebinyk AG, Grynyuk II, Prylutska SV, Matyshevska OP, Slobodyanik MS, Frohme M, Lampeka RD. Cis-Palladium(II) complex incorporating 3-(2-pyridyl)-5-methyl-1,2,4-triazole: structure and cytotoxic activity. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01699-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Cheng K, Bai QX, Hu SJ, Guo XQ, Zhou LP, Xie TZ, Sun QF. Water-stable lanthanide-organic macrocycles from a 1,2,4-triazole-based chelate for enantiomeric excess detection and pesticide sensing. Dalton Trans 2021; 50:5759-5764. [PMID: 33949524 DOI: 10.1039/d1dt00726b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water-stable anionic Ln2L2-type (Ln = LaIII and EuIII) lanthanide-organic macrocycles have been constructed by deprotonation self-assembly of a bis-tridentate ligand consisting of two 2,6-bis-(1,2,4-triazole)-pyridine chelation arms bridged by a dibenzofuran chromophore, of which the luminescent Eu2L2 macrocycle can be used for enantiomeric excess (ee) detection toward pybox-type chiral ligands and selective colorimetric sensing of omethoate (OMA) in water.
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Affiliation(s)
- Kai Cheng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China. and University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Qi-Xia Bai
- Institute of Environmental Research at Greater Bay Area; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education; Guangzhou Key Laboratory for Clean Energy and Materials; Guangzhou University, Guangzhou 510006, China
| | - Shao-Jun Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China. and University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiao-Qing Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China. and University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Li-Peng Zhou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China.
| | - Ting-Zheng Xie
- Institute of Environmental Research at Greater Bay Area; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education; Guangzhou Key Laboratory for Clean Energy and Materials; Guangzhou University, Guangzhou 510006, China
| | - Qing-Fu Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China. and University of Chinese Academy of Sciences, Beijing 100049, PR China
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Zakharchenko BV, Khomenko DM, Doroshchuk RO, Raspertova IV, Starova VS, Trachevsky VV, Shova S, Severynovska OV, Martins LMDRS, Pombeiro AJL, Arion VB, Lampeka RD. New palladium( ii) complexes with 3-(2-pyridyl)-5-alkyl-1,2,4-triazole ligands as recyclable C–C coupling catalysts. NEW J CHEM 2019. [DOI: 10.1039/c9nj02278c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Compounds 4a–d revealed good catalytic activity and prospects for use as mesomorphic materials.
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Affiliation(s)
- Borys V. Zakharchenko
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Dmytro M. Khomenko
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Roman O. Doroshchuk
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Ilona V. Raspertova
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Viktoriia S. Starova
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | | | - Sergiu Shova
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
| | - Olga V. Severynovska
- Chuiko Institute of Surface Chemistry
- National Academy of Sciences of Ukraine
- Kyiv 03164
- Ukraine
| | | | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Vladimir B. Arion
- University of Vienna
- Faculty of Chemistry
- Institute of Inorganic Chemistry
- 1090 Vienna
- Austria
| | - Rostyslav D. Lampeka
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
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