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Netskina OV, Sukhorukov DA, Dmitruk KA, Mukha SA, Prosvirin IP, Pochtar AA, Bulavchenko OA, Paletsky AA, Shmakov AG, Suknev AP, Komova OV. Cobalt-Imidazole Complexes: Effect of Anion Nature on Thermochemical Properties. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2911. [PMID: 38930279 PMCID: PMC11204835 DOI: 10.3390/ma17122911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 05/25/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
A solvent-free method was proposed for the synthesis of hexaimidazolecobalt(II) nitrate and perchlorate complexes-[Co(C3H4N2)6](NO3)2 and [Co(C3H4N2)6](ClO4)2-by adding cobalt salts to melted imidazole. The composition, charge state of the metal, and the structure of the resulting complexes were confirmed by elemental analysis, XPS, IR spectroscopy, and XRD. The study of the thermochemical properties of the synthesized complexes showed that [Co(C3H4N2)6](NO3)2 and [Co(C3H4N2)6](ClO4)2 are thermally stable up to 150 and 170 °C, respectively. When the critical temperature of thermal decomposition is reached, oxidative two-stage gasification is observed. In this case, the organic component of the [Co(C3H4N2)6](NO3)2 complex undergoes almost complete gasification to form Co3O4 with a slight admixture of CoO, which makes it attractive as a component of gas-generation compositions, like airbags.
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Affiliation(s)
- Olga V. Netskina
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
| | - Dmitry A. Sukhorukov
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
| | - Kirill A. Dmitruk
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., 630090 Novosibirsk, Russia
| | - Svetlana A. Mukha
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
| | - Igor P. Prosvirin
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
| | - Alena A. Pochtar
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
| | - Olga A. Bulavchenko
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
| | - Alexander A. Paletsky
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia; (A.A.P.); (A.G.S.)
| | - Andrey G. Shmakov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia; (A.A.P.); (A.G.S.)
| | - Alexey P. Suknev
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
| | - Oxana V. Komova
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia; (D.A.S.); (K.A.D.); (S.A.M.); (I.P.P.); (A.A.P.); (O.A.B.); (A.P.S.); (O.V.K.)
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H. El-Demerdash S, F. Gad S, M. El-Mehasseb I, E. El-Kelany K. Isosterism in pyrrole via azaboroles substitution, a theoretical investigation for electronic structural, stability and aromaticity. Heliyon 2023; 9:e20542. [PMID: 37810871 PMCID: PMC10551570 DOI: 10.1016/j.heliyon.2023.e20542] [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: 05/04/2023] [Revised: 08/26/2023] [Accepted: 09/28/2023] [Indexed: 10/10/2023] Open
Abstract
This work uses ab-initio CBS-QB3 and density functional theory (B3LYP) to analyze the structure, stability, and aromaticity of all isosteric nitrogen-boron pyrroles. The mono-NB unit substituted group of the isosteric NB pyrrole has four isosteres, whereas the multi-NB unit substituted group has two isosteres. These two groups make up all isosteric NB pyrrole. For structural, energetic, magnetic, and electron delocalization criteria, the results highlight the predominance of the PN3B2 isostere and its greater stability over other conformers. In addition, the global reactivity indices, ESP, HOMO-LUMO, and NBO charges have all been estimated to forecast the active side's electron donation and acceptance. These isosteres are categorized as weak electrophiles and marginal nucleophiles. NB-isosteres have poorer stability, HOMO-LUMO gap, and aromaticity than the parent (pyrrole). In general, NB compounds with more ring sharing are less aromatic than NB molecules with less ring sharing. The current study is anticipated to help in understanding of the chemistry of NB substituted molecules and their experimental identification and characterization.
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Affiliation(s)
| | - Shaimaa F. Gad
- Chemistry Department, Faculty of Science, Kafrelsheikh University, 33516, Kafr el-Sheikh, Egypt
| | - Ibrahim M. El-Mehasseb
- Chemistry Department, Faculty of Science, Kafrelsheikh University, 33516, Kafr el-Sheikh, Egypt
| | - Khaled E. El-Kelany
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, 33516, Kafr el-skiekh, Egypt
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Solvent-Free Method for Nanoparticles Synthesis by Solid-State Combustion Using Tetra(Imidazole)Copper(II) Nitrate. INORGANICS 2022. [DOI: 10.3390/inorganics10020015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The development of solvent-free techniques for nanoparticles synthesis is one of the challenges of Green chemistry. In this work, the principled opportunity to obtain copper-containing nanosized particles without use of any solvents was shown. The copper complexes were prepared as precursors by the melting-assisted solvent-free synthesis. The formation of tetra(imidazole)copper(II) nitrate complex was confirmed by XRD, elemental analysis, FTIR spectroscopy, and thermal analysis. It was noted that their thermal decomposition occurs in two stages: (I) the low-temperature step may be related to redox interaction between organic ligands and nitrate-anions; (II) the high-temperature step may be related to the oxidation of the products of incomplete imidazole decomposition. TEM and XRD studies of solid products of complex combustion have shown that they are oxides with particle size less than 40 nm. Thus, the combustion of [Cu(Im)4](NO3)2 complex under air can be considered as a new approach to prepare nanosized particles of copper oxides without the use of solvents.
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Spectroscopic characterization of 4,5-diphenyl-2-(2,4,5-trimethoxyphenyl)-1H-imidazole obtained from the condensation of benzyl. Experimental and DFT approach. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Crnčević D, Krce L, Mastelić L, Maravić A, Soldo B, Aviani I, Primožič I, Odžak R, Šprung M. The mode of antibacterial action of quaternary N-benzylimidazole salts against emerging opportunistic pathogens. Bioorg Chem 2021; 112:104938. [PMID: 33933803 DOI: 10.1016/j.bioorg.2021.104938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 12/23/2022]
Abstract
Quaternary ammonium compounds (QACs) are antimicrobial agents displaying a broad spectrum of activity due to their mechanism of action targeting the bacterial membrane. The emergence of bacterial resistance to QACs, especially in times of pandemics, requires the continuous search for new and potent QACs structures. Here we report the synthesis and biological evaluation of QACs based on imidazole derivative, N-benzylimidazole. The antimicrobial activity was tested against a range of pathogenic bacteria and fungi, both ATCC and clinical isolates, showing varying activities ranging in minimal inhibitory concentrations (MICs) from as low as 7 ng/mL. The most promising compound, N-tetradecyl derivative (BnI-14), proved to be very potent against bacterial biofilms, even at sub-MIC doses, suggesting interference with the bacterial growth and/or division process. The BnI-14 treatment induces bacterial membrane disruption, as observed by fluorescence spectroscopy and atomic force microscopy and it also binds to DNA indicating that bacterial membrane might not be the only cellular target of QACs. Most importantly, BnI-14 exhibits low toxicity to healthy human cell lines, suggesting that N-benzylimidazolium-based QACs may be promising new antimicrobial agents.
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Affiliation(s)
- Doris Crnčević
- Department of Chemistry, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
| | - Lucija Krce
- Department of Physics, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
| | - Linda Mastelić
- Department of Chemistry, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
| | - Ana Maravić
- Department of Biology, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
| | - Barbara Soldo
- Department of Chemistry, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
| | - Ivica Aviani
- Department of Physics, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
| | - Ines Primožič
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb, Croatia.
| | - Renata Odžak
- Department of Chemistry, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
| | - Matilda Šprung
- Department of Chemistry, Faculty of Science, University of Split, Ruđera Boškovića 33, Split, Croatia.
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Aromaticity indices, electronic structural properties, and fuzzy atomic space investigations of naphthalene and its aza-derivatives. Heliyon 2021; 7:e06138. [PMID: 33553781 PMCID: PMC7856479 DOI: 10.1016/j.heliyon.2021.e06138] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/21/2020] [Accepted: 01/26/2021] [Indexed: 11/23/2022] Open
Abstract
The aromaticity and CDFT properties of naphthalene and its aza-derivatives were theoretically investigated using density functional theory (DFT) electronic structure method. The reactivity and chemistry of Azanaphthalene (1-AN), 1, 2-diazanaphthalene (1, 2-DAN), 1, 3-diazanaphthalene (1, 3-DAN), 1, 4-diazanaphthalene (1,4-DAN), 1, 5-diazanaphthalene (1, 5-DAN), 1, 6-diazanaphthalene (1, 6-DAN), 1, 7-diazanaphthalene (1,7-DAN) and 1, 8-diazanaphthalene (1, 8-DAN) were thoroughly explored and predicted focusing more on the fuzzy atomic space analysis, quantum chemical descriptors (CDFT), natural bond orbital (NBO), and structural electronic properties. The CDFT is focused on predicting the condensed Fukui function and dual descriptors along with condensed local electrophilicity and nucleophilicity investigation. From the aromaticity computational study, 1,7-DAN gave PDI, FLU, FLU- π , PLR, HOMA, BIRD and LOLIPOP values of approximately one (1) was found to be the most aromatic in the group, and strongest π -stacking ability. The aromaticity follows the trend: 1, 7-DAN > 1, 8-DAN > 1, 5-DAN > 1, 6-DAN > 1, 4-DAN > 1, 2-DAN > 1-AN > naphthalene. The second order perturbation energy NBO analysis revealed that the 3 highest stabilization energies in the molecules are C6-Na to C3-C4 ( π ∗ - π ∗ 236.90 kcal/mol) of 1, 6-DAN, C3-C4 to C1-C2 ( π ∗ - π ∗ 236.37 kcal/mol) of 1-AN and C7-N10 to C2-C4 ( π ∗ - π ∗ 235 kcal/mol) of 1, 3-DAN.
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Ghafoor S, Mansha A, Asim S, Usman M, Zahoor AF, Ali HS. The structural, spectral, frontier molecular orbital and thermodynamic analysis of 2-hydroxy 2-methyl propiophenone by MP2 and B3LYP methods. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2020. [DOI: 10.1142/s0219633620500200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the present work, we have studied the 2-hydroxy 2-methyl propiophenone (2H2MPP) theoretically as well as experimentally. The optimized molecular structure has been obtained by the density functional theory (DFT), second-order Moller–Plesset perturbation theory (MP2) and Hartree Fock (HF) in the gas phase as well as in different media like ethanol, DMSO and heptane. FT-IR and FT-Raman spectra were computed as well as recorded and fundamental vibrational wavenumbers were assigned. The electronic absorption spectra were calculated by employing the time-dependent density functional theory (TD-DFT) to get the information about excitation energies, oscillator strength and excited state geometries in gas phase and in different solvent media. Chemical activity and chemical stability obtained by HOMO-LUMO studies using a HF/6-31[Formula: see text]G and MP2/6-311[Formula: see text]G calculations. The chemical interpretation of hyperconjugation interactions obtained by the Natural Bond Orbital (NBO) analysis. Moreover, electrostatic potential (ESP) calculations performed to get the visual representation of relative polarity of molecule. Thermodynamic parameters like enthalpy, entropy, heat capacity, and Gibbs free energy computed with varying temperature from 10[Formula: see text]K to 500[Formula: see text]K. The aim of the current investigation is to find out the quantum chemical properties of the title compound which show an active role in the pharmaceutical and printing industries.
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Affiliation(s)
- Sidra Ghafoor
- Department of Chemistry, Government College University, Faisalabad-38000, Pakistan
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science, The University of Manchester, United Kingdom
| | - Asim Mansha
- Department of Chemistry, Government College University, Faisalabad-38000, Pakistan
| | - Sadia Asim
- Department of Chemistry, Government College Women University, Faisalabad, Pakistan
| | - Muhammad Usman
- Department of Chemistry, Government College University, Faisalabad-38000, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University, Faisalabad-38000, Pakistan
| | - Hafiz Saqib Ali
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science, The University of Manchester, United Kingdom
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Aarthi R, Ramalingam S, Periandy S. Pharmaceutical property interpretation and biological property study on Ethionamide using quantum spectroscopic and computational tools. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2019. [DOI: 10.1080/16583655.2019.1661133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- R. Aarthi
- Department of Physics, A.V.C. College, Mayiladuthurai, India
- Department of Physics, ST. Theresas college of Arts and Science, Thrangambadi, India
| | - S. Ramalingam
- Department of Physics, A.V.C. College, Mayiladuthurai, India
| | - S. Periandy
- Department of Physics, Kanchi Mamunivar centre for PG studies, Puducherry, India
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Hemachandran K, Anbusrinivasan P, Ramalingam S, Manoharan C, Aarthi R. Biological and structural properties’ interpretation on antitumour drug 3-(2-aminoethyl) indole (tryptamine) using molecular spectroscopy and computational tools. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1080/16583655.2018.1559008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- K. Hemachandran
- Department of Chemistry, A.V.C. College, Mayiladuthurai, India
| | | | - S. Ramalingam
- Department of Physics, A.V.C. College, Mayiladuthurai, India
| | - C. Manoharan
- Department of Physics, Annamalai University, Chidambaram, India
| | - R. Aarthi
- Department of Physics, A.V.C. College, Mayiladuthurai, India
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