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Chandra A, Basu P, Raha S, Dhibar P, Bhattacharya S. Development of ruthenium complexes with S-donor ligands for application in synthesis, catalytic acceptorless alcohol dehydrogenation and crossed-aldol condensation. Dalton Trans 2024; 53:10675-10685. [PMID: 38860941 DOI: 10.1039/d4dt00985a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
The reaction of [Ru(dmso)4Cl2] with a potassium salt of four xanthate (RO-C(S)S-; R = Me, Et, iPr and tBu) ligands (depicted as Ln; n = 1-4) in hot methanol afforded a group of mixed-ligand complexes of type [Ru(Ln)2(dmso)2]. The crystal structures of all the four complexes have been determined, which show that the xanthate ligands are bound to the metal center forming four-membered chelates and dmso is coordinated through sulfur and they are mutually cis. The relative thermodynamic stability of this cis and the other possible trans-isomers of these complexes has been assessed with the help of DFT calculations, which have revealed that the cis-isomer is the more stable isomer. The coordinated dmso in the [Ru(Ln)2(dmso)2] complexes could be easily displaced by chelating bidentate ligands (depicted as L') to furnish complexes of type [Ru(Ln)2(L')], as demonstrated through isolation of two such complexes, viz. [Ru(L3)2(bpy)] and [Ru(L2)2(phen)] (bpy = 2,2'-bipyridine and phen = 1,10-phenanthroline). The crystal structure of [Ru(L3)2(bpy)] has been determined and the structure of [Ru(L2)2(phen)] has been optimized by the DFT method. The electronic spectra of the four [Ru(Ln)2(dmso)2] complexes and the two derivatives ([Ru(Ln)2(L')]; n = 3, L' = bpy; n = 2, L' = phen), recorded in dichloromethane solutions, show intense absorptions spanning the visible and ultraviolet regions, which have been analyzed by the TDDFT method. The [Ru(Ln)2(dmso)2] complexes are found to serve as efficient catalyst precursors for the acceptorless dehydrogenation of 2-propanol followed by crossed-aldol condensation with substituted benzaldehydes (and related aldehydes), using tert-butoxide as the co-catalyst, producing dibenzylideneacetone derivatives in good yields.
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Affiliation(s)
- Anushri Chandra
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata - 700032, India.
| | - Pousali Basu
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata - 700032, India.
| | - Shreya Raha
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata - 700032, India.
| | - Papu Dhibar
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata - 700032, India.
- Department of Chemistry, Brainware University, Kolkata 700 125, India
| | - Samaresh Bhattacharya
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata - 700032, India.
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de Miranda DB, Quintal S, Ferreira GB. Electronic analysis of n-propyl xanthate complexes with group 12 metals: a theoretical-experimental study. J Mol Model 2024; 30:163. [PMID: 38730058 DOI: 10.1007/s00894-024-05950-z] [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: 02/28/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024]
Abstract
CONTEXT Xanthates are organic compounds of great interest in coordination chemistry due to their different basic sites, which allow them to form complexes with different coordination modes and geometries. These compounds are relevant in the environment and act as heavy metal collectors in aqueous environments. In this theoretical-experimental work, electronic spectroscopy studies of n-propyl xanthate complexes with group 12 metals were performed. This study verified structural differences in these systems, depending on the environment in which they are inserted. In addition, structural differences were observed when the solid was changed to an n-hexane solution. Thus, it was observed that the complexes assume a mononuclear structure in solution, while they present a polymeric form in the solid phase. The electronic spectra obtained through TD-DFT calculations were compared to those of the previously synthesized complexes. In the final theoretical analysis, the main orbitals involved in these transitions were assigned using population analysis calculations. The synthesis of the complexes was confirmed through infrared (MID and FAR), UV‒Vis, Raman, and NMR-1H spectroscopic analyses. METHODS The structures of the mononuclear and polymeric complexes were optimized in vacuum and n-hexane. Under vacuum, DFT levels M06L/6-311 + + G** + LANL2TZ and M06L/def2-TZVP were used for the mononuclear complexes, and M06L/LANL2DZ + LANL2 were used for the polymer complexes. For the calculations of the mononuclear complexes in n-hexane, the same level of theory was used for the solid state. TD-DFT calculations for 300 excited states were performed with the same levels of theory and used the optimized structures of the complexes. Furthermore, population analysis was carried out on all the systems studied. Gaussian 09 software was used for the structure optimization, TD-DFT, and population analysis calculations. GaussSum software was used to evaluate the molecular orbitals and electronic spectra.
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Affiliation(s)
- Daniella B de Miranda
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil
| | - Susana Quintal
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil
| | - Glaucio B Ferreira
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil.
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil.
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de Miranda DB, Quintal S, Ferreira GB. Theoretical studies of Zn 2+ complexes with alkyl xanthate ligands: a thermochemical, electronic energy decomposition, and natural bond orbital analysis. J Mol Model 2023; 29:203. [PMID: 37280464 DOI: 10.1007/s00894-023-05604-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 05/23/2023] [Indexed: 06/08/2023]
Abstract
CONTEXT Xanthates are organic compounds that present great interest for coordination chemistry, because they can bond in different ways to the metal ion. Thus, these compounds have several applications, being best known for their environmental application. In fact, xanthates are recognized for their application as heavy metal collector agents in aqueous environments. In view of this application, this study is aimed at showing the thermochemical and electronic parameters obtained for the reactions of substitution water molecules in the aqua zinc complexes, by xanthate ligands (n-propyl, n-butyl, and n-pentyl xanthates). In addition to their environmental application, xanthates have shown biological properties, such as anti-bacterial and anti-cancer. In recent years, xanthates have also been used in the technological area, where it participates as a precursor of sulfides for the manufacture of thin films. Our results showed complexes with distorted octahedral geometries and with negative values of enthalpy and Gibbs free energy, indicating exothermic and spontaneous processes. For all the complexes, it was observed that Zn2+ complexes have both an ionic and covalent character. However, the monosubstituted complexes showed a predominance of the ionic character. In addition, high donor-acceptor interaction energies were obtained, indicating a good superposition between the s and p orbitals involved in the Zn-S bond. METHODS This work consists in theoretical studies of Zn2+ complexes with alkyl xanthate ligands, with different structures, where optimization and normal modes calculations were performed at different DFT levels: M06L, M06-2X, wB97XD, and B3LYP/6-311++G**+LANL2TZ, with Gaussian09 program. The process of substitution of two aqua by two xanthate ligands was analyzed in stages, forming cationic and neutral complexes, in the first and second stages, respectively. In addition, electronic energy decomposition (EDA) and natural bond orbital (NBO) analysis were performed at level M06L/6-311++G**+LANL2TZ with Gamess program.
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Affiliation(s)
- Daniella B de Miranda
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil
| | - Susana Quintal
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil
| | - Glaucio B Ferreira
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil.
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil.
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Banti CN, Papatriantafyllopoulou C, Papachristodoulou C, Hatzidimitriou AG, Hadjikakou SK. New Apoptosis Inducers Containing Anti-inflammatory Drugs and Pnictogen Derivatives: A New Strategy in the Development of Mitochondrial Targeting Chemotherapeutics. J Med Chem 2023; 66:4131-4149. [PMID: 36749601 DOI: 10.1021/acs.jmedchem.2c02126] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
{[Ag8(Mef)8(μ2-S,O-DMSO)2(μ2-O-DMSO)2(O-DMSO)8]·2(H2O)} (1), [Ag(Mef)(tpP)2] (2), [Ag(Mef)(tpAs)3] (3), and {2 [Ag(Mef)(tpSb)3] (DMSO)} (4) were obtained by the conjugation of mefenamic acid (MefH), a nonsteroidal anti-inflammatory drug (NSAID), with a mitochondriotropic derivative of pnictogen tpE (tp = triphenyl group; E = P, As, and Sb) through silver(I). Their hydrophilicity was adjusted by their dispersion into sodium lauryl sulfate (SLS), forming SLS@1-4. 1-4 and SLS@1-4 were characterized by their spectral data and X-ray crystallography. They inhibit the proliferation of human breast adenocarcinoma cells MCF-7 (hormone-dependent (HD)) and MDA-MB-231 (hormone-independent (HI)). X-ray fluorescence reveals the Ag cellular uptake. The in vitro and in vivo nongenotoxicity was confirmed with micronucleus (MN), Artemia salina, and Allium cepa assays. Their mechanism of action was studied by cell morphology, DNA fragmentation, acridine orange/ethidium bromide (AO/EB) staining, cell cycle arrest, mitochondrial membrane permeabilization tests, DNA binding affinity, and LOX inhibitory activity and was rationalized by regression analysis.
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Affiliation(s)
- Christina N Banti
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
| | | | | | | | - Sotiris K Hadjikakou
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
- Institute of Materials Science and Computing, University Research Center of Ioannina (URCI) Ioannina, 45110 Ioannina, Greece
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Le TA, Zouheir M, Nikiforow K, Khatib M, Zohar O, Haick H, Huynh TP. Synthesis, characterization, and humidity-responsiveness of guar gum xanthate and its nanocomposite with copper sulfide covellite. Int J Biol Macromol 2022; 206:105-114. [PMID: 35219779 DOI: 10.1016/j.ijbiomac.2022.02.132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/16/2022] [Accepted: 02/22/2022] [Indexed: 11/05/2022]
Abstract
A novel conjugation of guar gum with xanthate groups via facile aqueous xanthation reaction has been reported. Density of grafted xanthate on guar gum product (GG-X) is as high as 4.4%, thus GG-X is conceivably characterized and confirmed by various spectrometric, electrochemical, thermogravimetric, and microscopic methods. Complexation of GG-X with numerous borderline and soft metal ions (e.g. Fe2+, Co2+, Ni2+, Cu2+, Pb2+, Pt2+ and Cd2+) yields hydrophilic gel-like materials and shows good agreement with hard and soft acid and base (HSAB) theory. This indicates tremendous potential of GG-X in metal ion extraction, removal and hydrogel cross-linking. GG-X is also employed to formulate an aqueous colloidal dispersion of copper sulfide covellite (GG-X/CuS) nanocomposites. GG-X therefore behaves as a surfactant, allowing formation of electronically conductive nanocomposites. XRD indicates apparent beneficial effects of GG-X in the synthesis of CuS with a crystallite size of 15.6 nm. This novel nanocomposite is a promising material for humidity sensing, showing reversible linear responses to relative humidity changes within 10 to 80% range. The interaction between GG-X and water might cause changes in electrical permittivity of GG-X/CuS nanocomposite and/or electrical hopping conductivity between CuS nanoparticles.
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Affiliation(s)
- Trung-Anh Le
- Laboratory of Molecular Sciences and Engineering, Åbo Akademi University, Henrikinkatu 2, 20500 Turku, Finland
| | - Morad Zouheir
- Laboratory of Molecular Sciences and Engineering, Åbo Akademi University, Henrikinkatu 2, 20500 Turku, Finland; Laboratoire de Matériaux, Procédés, Catalyse et Environnement (LMPCE), Université Sidi Mohammed Ben Abdellah, Fès, Route d'Imouzzer, BP 2427 Fès, Morocco
| | - Kostiantyn Nikiforow
- Institute of Physical Chemistry, Polish Academy of Sciences, 44/52 Kasprzaka, 01-224 Warsaw, Poland
| | - Muhammad Khatib
- The Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Orr Zohar
- The Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Hossam Haick
- The Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Tan-Phat Huynh
- Laboratory of Molecular Sciences and Engineering, Åbo Akademi University, Henrikinkatu 2, 20500 Turku, Finland.
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Shen Z, Ma N, Wang F, Ren J, Hou C, Chao S, Pei Y, Pei Z. pH- and H2O2-sensitive drug delivery system based on sodium xanthate: Dual-responsive supramolecular vesicles from one functional group. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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de Azeredo LCA, da Silva VHM, Marques MM, Ferreira GB, de Paula Machado S. Spectroscopic and Crystallographic Studies of the Complex tris(O-propyldithiocarbonate)cobalt(III). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Almeida VYG, Rocha JS, Felix DP, Oliveira GP, Lima MA, Farias RL, Zanetti RD, Netto AVG, Zambom CR, Garrido SS, Rocha FV. Cytotoxicity and Antibacterial Activity of Silver Complexes Bearing Semicarbazones and Triphenylphosphine. ChemistrySelect 2020. [DOI: 10.1002/slct.202004093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Vitor Y. G. Almeida
- Chemistry Department, Federal University of São Carlos, Rod. Washington Luis, Km 235 São Carlos, São Paulo ZIP 13565-905 Brazil
| | - Josias S. Rocha
- Chemistry Department, Federal University of São Carlos, Rod. Washington Luis, Km 235 São Carlos, São Paulo ZIP 13565-905 Brazil
| | - Débora P. Felix
- Chemistry Department, Federal University of São Carlos, Rod. Washington Luis, Km 235 São Carlos, São Paulo ZIP 13565-905 Brazil
| | - Gabriela P. Oliveira
- Chemistry Department, Federal University of São Carlos, Rod. Washington Luis, Km 235 São Carlos, São Paulo ZIP 13565-905 Brazil
| | - Mauro A. Lima
- Chemistry Department, Federal University of São Carlos, Rod. Washington Luis, Km 235 São Carlos, São Paulo ZIP 13565-905 Brazil
| | - Renan L. Farias
- Department of Analytical Chemistry Physicochemical and Inorganic Chemistry. UNESP – Univ Estadual Paulista, Institute of Chemistry, Av. Prof. Francisco Degni, 55, Araraquara São Paulo ZIP 14800-900 Brazil
| | - Renan D. Zanetti
- Department of Analytical Chemistry Physicochemical and Inorganic Chemistry. UNESP – Univ Estadual Paulista, Institute of Chemistry, Av. Prof. Francisco Degni, 55, Araraquara São Paulo ZIP 14800-900 Brazil
| | - Adelino V. G. Netto
- Department of Analytical Chemistry Physicochemical and Inorganic Chemistry. UNESP – Univ Estadual Paulista, Institute of Chemistry, Av. Prof. Francisco Degni, 55, Araraquara São Paulo ZIP 14800-900 Brazil
| | - Carolina R. Zambom
- Department of Biochemistry and Organic Chemistry. UNESP – Univ Estadual Paulista, Institute of Chemistry Av. Prof. Francisco Degni, 55 Araraquara, São Paulo ZIP 14800-900 Brazil
| | - Saulo S. Garrido
- Department of Biochemistry and Organic Chemistry. UNESP – Univ Estadual Paulista, Institute of Chemistry Av. Prof. Francisco Degni, 55 Araraquara, São Paulo ZIP 14800-900 Brazil
| | - Fillipe V. Rocha
- Chemistry Department, Federal University of São Carlos, Rod. Washington Luis, Km 235 São Carlos, São Paulo ZIP 13565-905 Brazil
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Ajibade PA, Oluwalana AE. Synthesis and crystal structure of bis(O-methyl hydrogenato carbonodithioate)-Pb(II): structural, optical and photocatalytic studies of PbS nanoparticles from the complex. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1700233] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Abimbola E. Oluwalana
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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Chrysouli M, Banti C, Kourkoumelis N, Panayiotou N, Markopoulos G, Tasiopoulos A, Hadjikakou S. Chloro(triphenylphosphine)gold(I) a forefront reagent in gold chemistry as apoptotic agent for cancer cells. J Inorg Biochem 2018; 179:107-120. [DOI: 10.1016/j.jinorgbio.2017.11.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/30/2017] [Accepted: 11/04/2017] [Indexed: 12/19/2022]
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Poyraz M, Sari M, Banti CN, Hadjikakou SK. Synthesis, characterization and biological activities of copper(II) complex of 2-Benzimidazolyl-urea and the nitrate salt of 2-Benzimidazolyl-urea. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.070] [Citation(s) in RCA: 5] [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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Poyraz M, Berber H, Banti CN, Kourkoumelis N, Manos MJ, Hadjikakou SK. Synthesis characterization and biological activity of mixed ligand silver(I) complex of 2-benzimidazolylurea and triphenylphosphine. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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