1
|
Zueva AY, Bilyachenko AN, Khrustalev VN, Shul'pina LS, Ikonnikov NS, Dorovatovskii PV, Shubina ES, Ragimov K, Lobanov NN, Sun D. Rational (supra)molecular design and catalytic activity of cage-like Cu 4-based phenylsilsesquioxanes. NANOSCALE 2024. [PMID: 39289897 DOI: 10.1039/d4nr02173h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
An extended (i.e., 19 distinct species) family of cage-like Cu4-phenylsilsesquioxanes allowed us to accentuate the general regularities behind their structural organization. Influencing factors, namely the (i) size of external alkali metal ions (from Li to Cs) and (ii) nature of bridging linkers (including the smallest possible ones, like a water molecule) on the self-assembly/supramolecular assembly of such Cu4-building blocks have been thoroughly explored. A Cu4K4-based complex has been evaluated as a precatalyst in the oxidation of alkanes (cyclohexane, n-heptane, methylcyclohexane) and alcohols. The experimental evidence that radical species participate in the oxidation of alkanes is provided.
Collapse
Affiliation(s)
- Anna Y Zueva
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str. 28, 119991 Moscow, Russia.
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay Str. 6, 117198 Moscow, Russia
| | - Alexey N Bilyachenko
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str. 28, 119991 Moscow, Russia.
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay Str. 6, 117198 Moscow, Russia
| | - Victor N Khrustalev
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay Str. 6, 117198 Moscow, Russia
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences (RAS), Leninsky Prospect 47, 119991 Moscow, Russia
| | - Lidia S Shul'pina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str. 28, 119991 Moscow, Russia.
| | - Nikolay S Ikonnikov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str. 28, 119991 Moscow, Russia.
| | - Pavel V Dorovatovskii
- National Research Center "Kurchatov Institute", Akademika Kurchatova pl. 1, 123182 Moscow, Russia
| | - Elena S Shubina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str. 28, 119991 Moscow, Russia.
| | - Karim Ragimov
- Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan
| | - Nikolai N Lobanov
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay Str. 6, 117198 Moscow, Russia
| | - Di Sun
- Department of Chemistry and Chemical Engineering, Shandong University, Shanda South Road 27, 250100 Jinan, China.
| |
Collapse
|
2
|
Vynohradov OS, Vashchenko OV, Khomenko DM, Doroshchuk RO, Raspertova IV, Lampeka RD, Stoica AC. Synthesis, crystal structure and Hirshfeld surface analysis of a new copper(II) complex based on diethyl 2,2'-(4 H-1,2,4-triazole-3,5-di-yl)di-acetate. Acta Crystallogr E Crystallogr Commun 2024; 80:976-980. [PMID: 39267870 PMCID: PMC11389672 DOI: 10.1107/s2056989024008259] [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: 07/15/2024] [Accepted: 08/21/2024] [Indexed: 09/15/2024]
Abstract
The title compound, bis-[μ-2,2'-(4H-1,2,4-triazole-3,5-di-yl)di-acetato]-bis-[di-aqua-copper(II)] dihydrate, [Cu2(C6H5N3O4)2(H2O)4]·2H2O, is a dinuclear octa-hedral CuII triazole-based complex. The central copper atoms are hexa-coordinated by two nitro-gen atoms in the equatorial positions, two equatorial oxygen atoms of two carboxyl-ate substituents in position 3 and 5 of the 1,2,4-triazole ring, and two axial oxygen atoms of two water mol-ecules. Two additional solvent water mol-ecules are linked to the title mol-ecule by O-H⋯N and O⋯H-O hydrogen bonds. The crystal structure is built up from the parallel packing of discrete supra-molecular chains running along the a-axis direction. Hirshfeld surface analysis suggests that the most important contributions to the surface contacts are from H⋯O/O⋯H (53.5%), H⋯H (28.1%), O⋯O (6.3%) and H⋯C/C⋯H (6.2%) inter-actions. The crystal studied was twinned by a twofold rotation around [100].
Collapse
Affiliation(s)
- Oleksandr S Vynohradov
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | - Oleksandr V Vashchenko
- 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
| | - Roman O Doroshchuk
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | - Ilona V Raspertova
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | - Rostyslav D Lampeka
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | | |
Collapse
|
3
|
Zakharchenko BV, Khomenko DM, Doroshchuk RO, Bargan A, Vassilyeva OY, Lampeka RD. Crystal structure of bis-{2-[5-(3,4,5-tri-meth-oxyphenyl)-4 H-1,2,4-triazol-3-yl]pyridine}palladium(II) bis-(tri-fluoro-acetate) tri-fluoro-acetic acid disolvate. Acta Crystallogr E Crystallogr Commun 2024; 80:567-571. [PMID: 38845720 PMCID: PMC11151322 DOI: 10.1107/s205698902400392x] [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: 02/05/2024] [Accepted: 04/29/2024] [Indexed: 06/09/2024]
Abstract
The new palladium(II) complex, [Pd(C16H16N4O3)2](CF3COO)2·2CF3COOH, crystallizes in the triclinic space group P with the asymmetric unit containing half the cation (PdII site symmetry Ci ), one tri-fluoro-actetate anion and one co-crystallized tri-fluoro-acetic acid mol-ecule. Two neutral chelating 2-[5-(3,4,5-tri-meth-oxy-phen-yl)-4H-1,2,4-triazol-3-yl]pyridine ligands coordinate to the PdII ion through the triazole-N and pyridine-N atoms in a distorted trans-PdN4 square-planar configuration [Pd-N 1.991 (2), 2.037 (2) Å; cis N-Pd-N 79.65 (8), 100.35 (8)°]. The complex cation is quite planar, except for the methoxo groups (δ = 0.117 Å for one of the C atoms). The planar configuration is supported by two intra-molecular C-H⋯N hydrogen bonds. In the crystal, the π-π-stacked cations are arranged in sheets parallel to the ab plane that are flanked on both sides by the tri-fluoro-acetic acid-tri-fluoro-acetate anion pairs. Apart from classical N/O-H⋯O hydrogen-bonding inter-actions, weak C-H⋯F/N/O contacts consolidate the three-dimensional architecture. Both tri-fluoro-acetic moieties were found to be disordered over two resolvable positions with a refined occupancy ratio of 0.587 (1):0.413 (17) and 0.530 (6):0.470 (6) for the protonated and deprotonated forms, respectively.
Collapse
Affiliation(s)
- Borys V. Zakharchenko
- 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. (www.enamine.net), Winston Churchill str. 78, 02094 Kyiv, Ukraine
| | - Roman O. Doroshchuk
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
- Enamine Ltd. (www.enamine.net), Winston Churchill str. 78, 02094 Kyiv, Ukraine
| | - Alexandra Bargan
- "PetruPoni" Institute of Macromolecular Chemistry, Aleea Gr., Ghica Voda 41A, 700487 Iasi, Romania
| | - Olga Yu. Vassilyeva
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| | - Rostyslav D. Lampeka
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine
| |
Collapse
|
4
|
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.
Collapse
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
| |
Collapse
|
5
|
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.
Collapse
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.
| |
Collapse
|
6
|
Blazquez-Martín A, Verde-Sesto E, Arbe A, Pomposo JA. Metamorphosis of a Commodity Plastic like PVC to Efficient Catalytic Single-Chain Nanoparticles. Angew Chem Int Ed Engl 2023; 62:e202313502. [PMID: 37792399 DOI: 10.1002/anie.202313502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/05/2023]
Abstract
We perform the conversion of a commodity plastic of common use in pipes, window frames, medical devices, flexible hoses, etc. like polyvinyl chloride (PVC) to single-chain nanoparticles (SCNPs). SCNPs are versatile, protein-mimetic soft nano-objects of growing interest for catalysis, sensing, and nanomedicine, among other uses. We demonstrate that the metamorphosis process -as induced through metal-free click chemistry- leads to well-defined, uniform SCNPs that are stable during storage in the solid state for months. All the conversion process (from PVC isolation to PVC-SCNPs synthesis) can be run in a green, dipolar aprotic solvent and involving, when required, a simple mixture of ethanol and water (1/1 vol.) as non-solvent. The resulting PVC-SCNPs are investigated as recyclable, metalloenzyme-mimetic catalysts for several representative Cu(II)-catalyzed organic reactions. The method could be valid for the metamorphosis and valorization of other commodity plastics in which it is feasible to install azide functional groups in their linear polymer chains.
Collapse
Affiliation(s)
- Agustín Blazquez-Martín
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, P° Manuel de Lardizabal 5, E-20018, Donostia, Spain
| | - Ester Verde-Sesto
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, P° Manuel de Lardizabal 5, E-20018, Donostia, Spain
- IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, E-48009, Bilbao, Spain
| | - Arantxa Arbe
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, P° Manuel de Lardizabal 5, E-20018, Donostia, Spain
| | - José A Pomposo
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, P° Manuel de Lardizabal 5, E-20018, Donostia, Spain
- IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, E-48009, Bilbao, Spain
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología. University of the Basque Country (UPV/EHU), PO Box 1072, E-20800, Donostia, Spain
| |
Collapse
|
7
|
Draoui Y, Radi S, El Massaoudi M, Bahjou Y, Ouahhoud S, Mamri S, Ferbinteanu M, Benabbes R, Wolff M, Robeyns K, Garcia Y. Coordination Complexes Built from a Ditopic Triazole-Pyrazole Ligand with Antibacterial and Antifungal Performances. Molecules 2023; 28:6801. [PMID: 37836644 PMCID: PMC10574422 DOI: 10.3390/molecules28196801] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/23/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
Four mononuclear complexes (H3O){[NiL3](ClO4)3} (1), [CoL3](ClO4)2·2H2O (2), [CdL2Cl2] (3) and [CuL3](NO3)2 (4) have been prepared employing a newly synthesized 1,2,4-triazole ligand: 3-(3,5-dimethyl-1H-pyrazol-1-yl)-1H-1,2,4-triazole (L). The structures of the complexes, which crystallized in P63/m (1), P-1 (2), P1 (3), and P21/c (4), are reviewed within the context of the cooperative effect of the hydrogen bonding network and counter anions on the supramolecular formations. Moreover, within the framework of biological activity examination, these compounds showed favorable antibacterial performances compared to those of various species of bacteria, including both Gram-positive and Gram-negative strains. Significant antifungal inhibitory activity towards Fusarium oxysporum f. sp. albedinis fungi was recorded for 3 and 4 over the ligand L.
Collapse
Affiliation(s)
- Youssef Draoui
- LCAE, Department of Chemistry, Faculty of Science, University Mohamed I, P.O. Box 524, Oujda 60 000, Morocco (M.E.M.)
| | - Smaail Radi
- LCAE, Department of Chemistry, Faculty of Science, University Mohamed I, P.O. Box 524, Oujda 60 000, Morocco (M.E.M.)
| | - Mohamed El Massaoudi
- LCAE, Department of Chemistry, Faculty of Science, University Mohamed I, P.O. Box 524, Oujda 60 000, Morocco (M.E.M.)
| | - Yousra Bahjou
- LCAE, Department of Chemistry, Faculty of Science, University Mohamed I, P.O. Box 524, Oujda 60 000, Morocco (M.E.M.)
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université Catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium;
| | - Sabir Ouahhoud
- Laboratory of Biochemistry and Biotechnology, Department of Biology, Faculty of Science, University Mohamed I, P.O. Box 524, Oujda 60 000, Morocco
| | - Samira Mamri
- Laboratory of Biochemistry and Biotechnology, Department of Biology, Faculty of Science, University Mohamed I, P.O. Box 524, Oujda 60 000, Morocco
| | - Marilena Ferbinteanu
- Inorganic Chemistry Department, Faculty of Chemistry, University of Bucharest, Panduri Road, No. 90, 050663 Bucharest, Romania
| | - Redouane Benabbes
- Laboratory of Biochemistry and Biotechnology, Department of Biology, Faculty of Science, University Mohamed I, P.O. Box 524, Oujda 60 000, Morocco
| | - Mariusz Wolff
- Institute of Chemical Catalysis, Faculty of Chemistry, Universität Wien, Währinger Straße 38-42, 1090 Wien, Austria;
| | - Koen Robeyns
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université Catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium;
| | - Yann Garcia
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université Catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium;
| |
Collapse
|
8
|
Petrenko YP, Khomenko DM, Doroshchuk RO, Raspertova IV, Shova S, Lampeka RD. Synthesis and crystal structure of a new copper(II) complex based on 5-ethyl-3-(pyridin-2-yl)-1,2,4-triazole. Acta Crystallogr E Crystallogr Commun 2023; 79:432-435. [PMID: 37151835 PMCID: PMC10162088 DOI: 10.1107/s2056989023003079] [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: 02/17/2023] [Accepted: 04/03/2023] [Indexed: 05/09/2023]
Abstract
The title compound, bis-[μ-3-ethyl-5-(pyridin-2-yl)-1H-1,2,4-triazol-1-ido]bis[acetato-(di-methyl-formamide)-copper(II)], [Cu2(C9H9N4)2(C2H3O2)2(C3H7NO)2] or [Cu2(L Et)2(OAc)2(dmf)2], is a triazolate complex, which contains two 3-(2-pyrid-yl)-5-ethyl-triazolates (L Et)- in bidentate-bridged coordination modes. Both copper atoms are involved in the formation of a planar six-membered metallocycle Cu-[N-N]2-Cu. The inversion center of the complex is located at the mid-point of the Cu⋯Cu vector. Each CuII atom has a distorted trigonal-bipyramidal environment formed by the three nitro-gen atoms of the deprotonated bridging 3-(2-pyrid-yl)-5-ethyl-triazolate unit, oxygen atoms of the OAc- group and dmf mol-ecule. In the crystal, C-H⋯O hydrogen bonds link the mol-ecules into chains running along the c-axis direction.
Collapse
Affiliation(s)
- Yuliia P. Petrenko
- 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
| |
Collapse
|
9
|
Petrenko YP, Bibik YS, Khomenko DM, Doroshchuk RO, Gural’skiy IA, Shova S, Lampeka RD, Raspertova IV. Synthesis and crystal structure of hydrated μ-oxa-lato-bis-{bis-[3-methyl-5-(pyridin-2-yl)-1 H-1,2,4-triazole]iron(II)} bis-(toluene-sulfonate) 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] [Key Words] [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 octa-hedral 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.
Collapse
Affiliation(s)
- Yuliia P. Petrenko
- Department of Chemistry, Kyiv National Taras Shevchenko University, Volodymyrska, st. 64, Kyiv, Ukraine
| | - Yurii S. Bibik
- Department of Chemistry, Kyiv National Taras Shevchenko University, Volodymyrska, st. 64, Kyiv, Ukraine
| | - Dmytro M. Khomenko
- Department of Chemistry, Kyiv National Taras Shevchenko University, Volodymyrska, st. 64, Kyiv, Ukraine
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine
| | - Roman O. Doroshchuk
- Department of Chemistry, Kyiv National Taras Shevchenko University, Volodymyrska, st. 64, Kyiv, Ukraine
- Enamine Ltd., Chervonotkatska Street 78, Kyiv 02094, Ukraine
| | - Il‘ya A. Gural’skiy
- Department of Chemistry, Kyiv National Taras Shevchenko University, Volodymyrska, st. 64, Kyiv, Ukraine
| | - Sergiu Shova
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica, Voda 41A, 700487 Iasi, Romania
| | - Rostyslav D. Lampeka
- Department of Chemistry, Kyiv National Taras Shevchenko University, Volodymyrska, st. 64, Kyiv, Ukraine
| | - Ilona V. Raspertova
- Department of Chemistry, Kyiv National Taras Shevchenko University, Volodymyrska, st. 64, Kyiv, Ukraine
| |
Collapse
|
10
|
Novel Copper(II) Complexes with Dipinodiazafluorene Ligands: Synthesis, Structure, Magnetic and Catalytic Properties. Molecules 2022; 27:molecules27134072. [PMID: 35807331 PMCID: PMC9268630 DOI: 10.3390/molecules27134072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 02/06/2023] Open
Abstract
The reactions of CuX2 (X = Cl, Br) with dipinodiazafluorenes yielded four new complexes [CuX2L1]2 (X = Cl (1), Br (2), L1 = (1R,3R,8R,10R)-2,2,9,9-Tetramethyl-3,4,7,8,9,10-hexahydro-1H-1,3:8,10-dimethanocyclopenta [1,2-b:5,4-b’]diquinolin-12(2H)-one) and [(CuX2)2L2]n (X = Cl (3), Br (4), L2 = (1R,3R,8R,10R,1’R,3’R,8’R,10’R)-2,2,2’,2’,9,9,9’,9’-Octamethyl-1,1’,2,2’,3,3’,4,4’,7,7’,8,8’,9,9’,10,10’-hexadecahydro-1,3:1’,3’:8,10:8’,10’-tetramethano-12,12’-bi(cyclopenta [1,2-b:5,4-b’]diquinolinylidene). The complexes were characterized by IR and EPR spectroscopy, HR-ESI-MS and elemental analysis. The crystal structures of compounds 1, 2 and 4 were determined by X-ray diffraction (XRD) analysis. Complexes 1–2 have a monomeric structure, while complex 4 has a polymeric structure due to additional coordinating N,N sites in L2. All complexes contain a binuclear fragment {Cu2(μ-X)2×2} (X = Cl, Br) in their structures. Each copper atom has a distorted square-pyramidal coordination environment formed by two nitrogen atoms and three halogen atoms. The Cu-Nax distance is elongated compared to Cu-Neq. The EPR spectra of compounds 1–4 in CH3CN confirm their paramagnetic nature due to the d9 electronic configuration of the copper(II) ion. The magnetic properties of all compounds were studied by the method of static magnetic susceptibility. For complexes 1 and 2, the effective magnetic moments are µeff ≈ 1.87 and 1.83 µB (per each Cu2+ ion), respectively, in the temperature range 50–300 K, which are close to the theoretical spin value (1.73 µB). Ferromagnetic exchange interactions between Cu(II) ions inside {Cu2(μ-X)2X2} (X = Cl, Br) dimers (J/kB ≈ 25 and 31 K for 1 and 2, respectively) or between dimers (θ′ ≈ 0.30 and 0.47 K for 1 and 2, respectively) were found at low temperatures. For compounds 3 and 4, the magnetic susceptibility is well described by the Curie–Weiss law in the temperature range 1.77–300 K with µeff ≈ 1.72 and 1.70 µB for 3 and 4, respectively, and weak antiferromagnetic interactions (θ ≈ −0.4 K for 3 and −0.65 K for 4). Complexes 1–4 exhibit high catalytic activity in the oxidation of alkanes and alcohols with peroxides. The maximum yield of cyclohexane oxidation products reached 50% (complex 3). Based on the data on the study of regio- and bond-selectivity, it was concluded that hydroxyl radicals play a decisive role in the oxidation reaction. The initial products in reactions with alkanes are alkyl hydroperoxides.
Collapse
|
11
|
Majumder A, Haldar S, Dutta N, Das A, Bera M. Cu(II), Mn(II) and Zn(II) Complexes of Anthracene‐Affixed Carboxylate‐Rich Tridentate Ligand: Synthesis, Structure, Spectroscopic Investigation and Their DNA Binding Profile. ChemistrySelect 2022. [DOI: 10.1002/slct.202104319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Avishek Majumder
- Department of Chemistry University of Kalyani Kalyani Nadia, West Bengal 741235 INDIA
| | - Shobhraj Haldar
- Department of Chemistry University of Kalyani Kalyani Nadia, West Bengal 741235 INDIA
| | - Nityananda Dutta
- Department of Chemistry University of Kalyani Kalyani Nadia, West Bengal 741235 INDIA
| | - Arpan Das
- Department of Chemical Sciences Indian Institute of Science Education & Research-Kolkata Mohanpur West Bengal 741246 INDIA
| | - Manindranath Bera
- Department of Chemistry University of Kalyani Kalyani Nadia, West Bengal 741235 INDIA
| |
Collapse
|
12
|
Theoretical investigation of the effect of auxiliary ligands on dipyrazole-bridged binuclear Cu(II) complexes. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.139102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
13
|
Petrenko YP, Piasta K, Khomenko DM, Doroshchuk RO, Shova S, Novitchi G, Toporivska Y, Gumienna-Kontecka E, Martins LMDRS, Lampeka RD. An investigation of two copper(ii) complexes with a triazole derivative as a ligand: magnetic and catalytic properties. RSC Adv 2021; 11:23442-23449. [PMID: 35479774 PMCID: PMC9036593 DOI: 10.1039/d1ra03107d] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/24/2021] [Indexed: 12/13/2022] Open
Abstract
Two new copper(ii) complexes [Cu2(L)2(OAc)2(H2O)2] (1) (L = 3-methyl-5-pyridin-2-yl-1,2,4-triazole) and [CuL2] (2) were prerared and thoroughly studied. The complexes are able to selectively catalyze the oxidation of styrene towards benzaldehyde and of cyclohexane to KA oil. The 2D coordination polymer 1 showed an antiferromagnetic behaviour attributed to the intrachain magnetic coupling.
Collapse
Affiliation(s)
- Yuliia P Petrenko
- Department of Chemistry, Taras Shevchenko National University of Kyiv Volodymyrska Street, 64/13 Kyiv 01601 Ukraine
| | - Karolina Piasta
- Faculty of Chemistry, University of Wroclaw F. Joliot-Curie 14 50-383 Wroclaw Poland
| | - Dmytro M Khomenko
- 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
| | - Sergiu Shova
- "Petru Poni" Institute of Macromolecular Chemistry, Laboratory of Inorganic Polymers Aleea Grigore Ghica Voda No. 41A RO-700487 Iasi Romania
| | - Ghénadie Novitchi
- Laboratoire National des Champs Magnétiques Intenses, UPR CNRS 3228, Université Grenoble-Alpes 25 rue des Martyrs, B.P. 166 38042 Grenoble Cedex 9 France
| | - Yuliya Toporivska
- Faculty of Chemistry, University of Wroclaw F. Joliot-Curie 14 50-383 Wroclaw Poland
| | | | - Luísa M D R S Martins
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Rostyslav D Lampeka
- Department of Chemistry, Taras Shevchenko National University of Kyiv Volodymyrska Street, 64/13 Kyiv 01601 Ukraine
| |
Collapse
|