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Eichhorn T, Kolbe F, Mišić S, Dimić D, Morgan I, Saoud M, Milenković D, Marković Z, Rüffer T, Dimitrić Marković J, Kaluđerović GN. Synthesis, Crystallographic Structure, Theoretical Analysis, Molecular Docking Studies, and Biological Activity Evaluation of Binuclear Ru(II)-1-Naphthylhydrazine Complex. Int J Mol Sci 2022; 24:ijms24010689. [PMID: 36614131 PMCID: PMC9821167 DOI: 10.3390/ijms24010689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/15/2022] [Accepted: 12/25/2022] [Indexed: 01/03/2023] Open
Abstract
Ruthenium(II)-arene complexes have gained significant research interest due to their possible application in cancer therapy. In this contribution two new complexes are described, namely [{RuCl(η6-p-cymene)}2(μ-Cl)(μ-1-N,N'-naphthyl)]X (X = Cl, 1; PF6, 2), which were fully characterized by IR, NMR, and elemental microanalysis. Furthermore, the structure of 2 in the solid state was determined by a single crystal X-ray crystallographic study, confirming the composition of the crystals as 2·2MeOH. The Hirshfeld surface analysis was employed for the investigation of interactions that govern the crystal structure of 2·2MeOH. The structural data for 2 out of 2·2MeOH was used for the theoretical analysis of the cationic part [{RuCl(η6-p-cymene)}2(μ-Cl)(μ-1-N,N'-naphthyl)]+ (2a) which is common to both 1 and 2. The density functional theory, at B3LYP/6-31+G(d,p) basis set for H, C, N, and Cl atoms and LanL2DZ for Ru ions, was used for the optimization of the 2a structure. The natural bond orbital and quantum theory of atoms in molecules analyses were employed to quantify the intramolecular interactions. The reproduction of experimental IR and NMR spectra proved the applicability of the chosen level of theory. The binding of 1 to bovine serum albumin was examined by spectrofluorimetry and molecular docking, with complementary results obtained. Compound 1 acted as a radical scavenger towards DPPH• and HO• radicals, along with high activity towards cancer prostate and colon cell lines.
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Affiliation(s)
- Thomas Eichhorn
- Department of Engineering and Natural Sciences, University of Applied Sciences Merseburg, Eberhard-Leibnitz-Straße 2, 06217 Merseburg, Germany
| | - Franz Kolbe
- Department of Engineering and Natural Sciences, University of Applied Sciences Merseburg, Eberhard-Leibnitz-Straße 2, 06217 Merseburg, Germany
| | - Stefan Mišić
- Department of Engineering and Natural Sciences, University of Applied Sciences Merseburg, Eberhard-Leibnitz-Straße 2, 06217 Merseburg, Germany
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Dušan Dimić
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Ibrahim Morgan
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Mohamad Saoud
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Dejan Milenković
- Department of Science, Institute for Information Technologies, University of Kragujevac, Jovana Cvijića bb, 34000 Kragujevac, Serbia
| | - Zoran Marković
- Department of Science, Institute for Information Technologies, University of Kragujevac, Jovana Cvijića bb, 34000 Kragujevac, Serbia
| | - Tobias Rüffer
- Institute of Chemistry, Chemnitz University of Technology, Straße der Nationen 62, D-09111 Chemnitz, Germany
| | - Jasmina Dimitrić Marković
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
- Correspondence: (J.D.M.); (G.N.K.)
| | - Goran N. Kaluđerović
- Department of Engineering and Natural Sciences, University of Applied Sciences Merseburg, Eberhard-Leibnitz-Straße 2, 06217 Merseburg, Germany
- Correspondence: (J.D.M.); (G.N.K.)
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Joseph I, Louis H, Okon EED, Unimuke TO, Udoikono AD, Magu TO, Maitera O, Elzagheid MI, Rhyman L, Ekeng-ita EI, Ramasami P. Experimental and theoretical study of the dye-sensitized solar cells using Hibiscus sabdariffa plant pigment coupled with polyaniline/graphite counter electrode. PURE APPL CHEM 2022. [DOI: 10.1515/pac-2022-0103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Abstract
In this research work, the extraction, characterization, device fabrication, and theoretical investigation of Hibiscus sabdariffa plant extract, for possible application in solid DSSCs, are reported. The plant extract was analyzed using FT-IR and UV–Vis spectrophotometry. Polyaniline on graphene was used as the counter electrode whereas titanium (IV) oxide was used as the photo anode for the fabricated DSSCs. The experimental results obtained for the open circuit voltage, short circuit current density, field factor, maximum power and conversion efficiency are 0.925 V, 0.073 A/cm2, 1.43, 1.04 W, and 0.044 % respectively. The excited states of anthocyanin (delphinidin) and quercetin, the most stable structures of Hibiscus sabdariffa plant extract, were studied using density functional theory method. In addition, the theoretical open circuit voltage, light harvesting efficiency, coupling constant, free energy change, and HOMO–LUMO energy gap were predicted for the photovoltaic properties. The theoretical results suggest that quercetin has relatively better photovoltaic properties and, hence, potentially a better dye for solar cell application.
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Affiliation(s)
- Innocent Joseph
- Chemistry Department , Modibbo Adama University of Technology , Yola , Nigeria
| | - Hitler Louis
- Computational and Bio-Simulation Research Group, University of Calabar , Calabar , Nigeria
- Department of Pure and Applied Chemistry , Faculty of Physical Sciences, University of Calabar , Calabar , Nigeria
| | - Emmanuel E. D. Okon
- Department of Pure and Applied Chemistry , Faculty of Physical Sciences, University of Calabar , Calabar , Nigeria
| | - Tomsmith O. Unimuke
- Computational and Bio-Simulation Research Group, University of Calabar , Calabar , Nigeria
- Department of Pure and Applied Chemistry , Faculty of Physical Sciences, University of Calabar , Calabar , Nigeria
| | - Akaninyene D. Udoikono
- Computational and Bio-Simulation Research Group, University of Calabar , Calabar , Nigeria
- Department of Pure and Applied Chemistry , Faculty of Physical Sciences, University of Calabar , Calabar , Nigeria
| | - Thomas O. Magu
- Computational and Bio-Simulation Research Group, University of Calabar , Calabar , Nigeria
- Department of Pure and Applied Chemistry , Faculty of Physical Sciences, University of Calabar , Calabar , Nigeria
| | - Oliver Maitera
- Chemistry Department , Modibbo Adama University of Technology , Yola , Nigeria
| | - Mohamed I. Elzagheid
- Department of Chemical and Process Engineering , Jubail Industrial College , Jubail Industrial City 31961 , Saudi Arabia
| | - Lydia Rhyman
- Computational Chemistry Group, Department of Chemistry , Faculty of Science, University of Mauritius , Reduit , Mauritius
- Centre for Natural Product Research, Department of Chemical Sciences , University of Johannesburg , Doornfontein, Johannesburg 2028 , South Africa
| | - Emmanuel I. Ekeng-ita
- Computational and Bio-Simulation Research Group, University of Calabar , Calabar , Nigeria
- Department of Pure and Applied Chemistry , Faculty of Physical Sciences, University of Calabar , Calabar , Nigeria
| | - Ponnadurai Ramasami
- Computational Chemistry Group, Department of Chemistry , Faculty of Science, University of Mauritius , Reduit , Mauritius
- Centre for Natural Product Research, Department of Chemical Sciences , University of Johannesburg , Doornfontein, Johannesburg 2028 , South Africa
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Uahengo V, Naimhwaka J. A chromo-fluorogenic probe for detecting water traces in aprotic solvents based on C 2-symmetry dianthrimide-hydroxide complexes: experimental and theoretical studies. Dalton Trans 2021; 50:336-345. [PMID: 33306081 DOI: 10.1039/d0dt03630g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A C2-symmetry dianthrimide based probe (D) and its hydroxide complex (D-OH) are reported as a chromo-fluorogenic sensor for rapid and sensitive detection of trace amounts of water in polar aprotic solvents. Based on intramolecular charge transfer in the excited state, the pink-coloured probe binds with the hydroxide ions to induce a colorimetric response of the resulting complex (D-OH), green in colour. The hydroxide based complex is used as a H2O or moisture sensor, tested in DMF and DCM, due to its high instability in moisture-containing organic solvents and paper materials/fabrics. The probe exhibits higher sensitivity towards pure H2O in DMSO with the LOD measured at 0.0067% v/v, perhaps even lower, in DMF (LOD = 0.100% v/v) and DCM (LOD = 0.013% v/v). The dissociation of OH- from D in the presence of H2O is responsible for the colorimetric and fluorometric responses. The litmus test paper strips prepared by adsorbing or coating them with the D-OH complex in DMSO could not be entirely achieved in an open system, due to the highly unstable state of the complex in the presence of water traces or the atmospheric moisture accumulated in the paper materials. The complex D-OH is also highly suspected to compete for adsorbed water in silica gel crystals in desiccators, due to its high affinity towards water molecules. The experimental studies were complemented by theoretical calculations using the Spartan'14 software package, and the computed data are in good agreement with the spectral data.
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Affiliation(s)
- Veikko Uahengo
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
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