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Khan SS, Howlader MBH, Sheikh MC, Miyatake R, Zangrando E. Crystal structure of bis-{ S-octyl-3-[(thio-phen-2-yl)methyl-idene]di-thio-carbazato-κ 2N3, S}nickel(II). Acta Crystallogr E Crystallogr Commun 2023; 79:714-717. [PMID: 37601399 PMCID: PMC10439407 DOI: 10.1107/s2056989023005935] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/06/2023] [Indexed: 08/22/2023]
Abstract
In the title complex, [Ni(C14H21N2S3)2], the nickel(II) atom is located on a crystallographic inversion center and exhibits a square-planar coordination environment, being coordinated by two negatively charged N,S-chelating ligands in a trans configuration. In the crystal, the non-H atoms of the complex are practically coplanar (r.m.s. deviation of fitted atoms = 0.135 Å), and the angle between the thienyl and the chelating rings is 6.7 (1)°. The mol-ecules stack at a distance of 3.623 (2) Å along the b-axis direction.
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Affiliation(s)
| | | | - Md. Chanmiya Sheikh
- Department of Applied Science, Faculty of Science, Okayama University of Science,Japan
| | - Ryuta Miyatake
- Center for Environmental Conservation and Research Safety, University of Toyama, 3190 Gofuku, Toyama, 930-8555, Japan
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
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Menezes T, Bouguerra S, Andreani T, Pereira R, Pereira C. Preparation, Characterization, and Environmental Safety Assessment of Dithiocarbazate Loaded Mesoporous Silica Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:370. [PMID: 36678123 PMCID: PMC9862897 DOI: 10.3390/nano13020370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/26/2022] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Dithiocarbazates comprise an important class of Schiff bases with remarkable biological applications due to the imine group present in their structure. However, full exploitation of the biological activity of 3-methyl-5-phenyl-pyrazoline-1-(S-benzyldithiocarbazate) (DTC) is limited due to its easy degradation and poor solubility in aqueous solutions. The loading of DTC into mesoporous silica nanoparticles (MSiNPs) can be an excellent strategy to improve the solubility of DTC in the aqueous medium. Therefore, the main goal of the present work was to design MSiNP-DTC and to evaluate the success of the loading process by measuring its physicochemical properties and evaluating the environmental safety of the new DTC formulation using different aquatic organisms, such as the microalgae Raphidocelis subcapitata, the macrophyte Lemna minor, and the marine bacterium Aliivibrio fischeri. DTC, MSiNP, and MSiNP-DTC concentrations ranging from 8.8 to 150 mg L-1 were tested for all the species, showing low toxicity against aquatic organisms. Loading DTC into MSiNPs caused a slight increase in the toxicity at the concentrations tested, only allowing for the estimation of the effect concentration causing a 20% reduction in bioluminescence or growth rate (EC20). Therefore, despite the potential of MSiNPs as a drug delivery system (DDS), it is of utmost importance to assess its impact on the safety of the new formulations.
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Affiliation(s)
- Thacilla Menezes
- Porto University Chemistry Research Center (CIQUP), Department of Chemistry and Biochemistry, Institute of Molecular Sciences (IMS)—Faculty of Sciences of the University of Porto (FCUP), Rua do Campo Alegre 687, 4169-007 Porto, Portugal
| | - Sirine Bouguerra
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Faculty of Sciences of the University of Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Tatiana Andreani
- Porto University Chemistry Research Center (CIQUP), Department of Chemistry and Biochemistry, Institute of Molecular Sciences (IMS)—Faculty of Sciences of the University of Porto (FCUP), Rua do Campo Alegre 687, 4169-007 Porto, Portugal
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Faculty of Sciences of the University of Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CTAB) & INOV4AGRO, University of Trás-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - Ruth Pereira
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Faculty of Sciences of the University of Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Carlos Pereira
- Porto University Chemistry Research Center (CIQUP), Department of Chemistry and Biochemistry, Institute of Molecular Sciences (IMS)—Faculty of Sciences of the University of Porto (FCUP), Rua do Campo Alegre 687, 4169-007 Porto, Portugal
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Begum MS, Das D, Zangrando E, Rahman S, Alodhayb A, Begum MK, Sheikh CM, Miyatake R, Howlader MBH, Karim MR, Chowdhury MB. A dithiocarbazate N,S Schiff base ligand with a long alkyl chain: Synthesis, characterization, DFT study and antimicrobial activity of its Ni(II) complex. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Dithiocarbazate Ligand-Based Cu(II), Ni(II), and Zn(II) Complexes: Synthesis, Structural Investigations, Cytotoxicity, DNA Binding, and Molecular Docking Studies. Bioinorg Chem Appl 2022; 2022:2004052. [PMID: 35959229 PMCID: PMC9357781 DOI: 10.1155/2022/2004052] [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: 02/28/2022] [Revised: 06/16/2022] [Accepted: 06/25/2022] [Indexed: 11/29/2022] Open
Abstract
S-4-methylbenzyl-β-N-(2-methoxybenzylmethylene)dithiocarbazate ligand, 1, prepared from S-(4-methylbenzyl)dithiocarbazate, was used to produce a novel series of transition metal complexes of the type, [M (L)2] [M = Cu(II) (2), Ni(II) (3), and Zn(II) (4), L = 1]. The ligand and its complexes were investigated by elemental analysis, FTIR, 1H and 13C-NMR, MS spectrometry, and molar conductivity. In addition, single X-ray crystallography was also performed for ligand, 1, and complex 3. The Hirshfeld surface analyses were also performed to know about various bonding interactions in the ligand, 1, and complex 3. The investigated compounds were also tested to evaluate their cytotoxic behaviour. However, complex 2 showed promising results against MCF-7 and MDA-MB-213 cancer cell lines. Furthermore, the interaction of CT-DNA with ligand, 1, and complex 2 was also studied using the electronic absorption method, revealing that the compounds have potential DNA-binding ability via hydrogen bonding and hydrophobic and van der Waals interactions. A molecular docking study of complex 2 was also carried out, which revealed that free binding free energy value was −7.39 kcal mol−1.
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Structural, theoretical and biological activity of mono and binuclear nickel(II) complexes with symmetrical and asymmetrical 4,6-diacetylresorcinol-dithiocarbazate ligands. J Inorg Biochem 2021; 224:111559. [PMID: 34390890 DOI: 10.1016/j.jinorgbio.2021.111559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 07/19/2021] [Accepted: 07/29/2021] [Indexed: 01/20/2023]
Abstract
The present work reports the synthesis and a structural study of two novel dithiocarbazate, the 4,6-diacetylresorcinol-S-benzyldithiocarbazate (H3L1) and the 4,6-diacetylresorcinol-bis(S-benzyldithiocarbazate) (H4L2), and their Ni(II) complexes, [Ni(HL1)(Py)] (1) and [Ni2(L2)(PPh3)2] (2). Single crystal X-ray analyzes reveal mono and binuclear complexes and the metal centers with distorted square planar geometry. The analyses of the Hirshfeld surface and fingerprints plots revealed intermolecular contacts attributed to the H···H and C···H/H···C bonds. The Density Functional Theory (DFT), with the B3LYP functional and 6-311-G(d,p)/LanL2DZ basis sets, was employed to optimize the geometries of synthesized compounds. From the resulting geometries, the highest occupied and lowest unoccupied molecular orbital maps (HOMO-LUMO), orbital energy gap, electron localization function (ELF), electron density, natural bond orbital (NBO) analysis, and complexation of the ligands with Ni(II) were calculated supporting the experimental data. The ESI (+)-MS/MS data indicated the presence in solution of the characteristic fragmentation with the [H3L1]+ and [H4L2]+ molecular ions for the ligands. The pharmacological potential of the dithiocarbazate ligands and their Ni(II) complexes were evaluated in vitro against MDA-MB-231 human breast cancer cells. A remarkable cytotoxic activity was observed, more evident for free ligands than complexes at low concentrations; however, this latter showed a better dose-response pattern, being more attractive in terms of pharmacokinetics and therapeutic window.
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Ali MS, Hasan M. Chelating activity of (2E,2′E)-2,2′-(pyridine-2,6-diylbis(ethan-1-yl-1-ylidene)bis(N-ethylhydrazinecarbothioamide). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ghanghas P, Choudhary A, Kumar D, Poonia K. Coordination metal complexes with Schiff bases: Useful pharmacophores with comprehensive biological applications. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108710] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Boshaala A, Yamin BM, Amer YOB, Ghaith GS, Almughery AA, Zarrouk A, Warad I. Crystal interaction, Hirshfeld surface analysis, and spectral analysis of new Dithiocarbazate Schiff bases derivative (LH) and its neutral cis-Cu(L)2 complex. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Huentupil Y, Chung P, Novoa N, Klahn AH, Medina ME, Cisterna J, Brito I, Rivera A, López‐Muñoz R, Arancibia R. New multifunctional heterobinuclear palladium (II) complexes based on organometallic dithiocarbazate ligands. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yosselin Huentupil
- Laboratorio de Química Inorgánica y Organometálica, Facultad de Ciencias QuímicasUniversidad de Concepción Concepción Chile
| | - Patricio Chung
- Laboratorio de Química Inorgánica y Organometálica, Facultad de Ciencias QuímicasUniversidad de Concepción Concepción Chile
| | - Néstor Novoa
- Laboratorio de Química Inorgánica y Organometálica, Facultad de Ciencias QuímicasUniversidad de Concepción Concepción Chile
| | - A. Hugo Klahn
- Instituto de QuímicaPontificia Universidad Católica de Valparaíso Casilla Valparaíso 4059 Chile
| | - Manuela E. Medina
- Instituto de Ciencias de Materiales de MadridConsejo Superior de Investigaciones Científicas, Sor Juana Inés de la Cruz 3 Madrid 28049 Spain
| | - Jonathan Cisterna
- Departamento de Química, Facultad de Ciencias BásicasUniversidad de Antofagasta Casilla 170 Antofagasta Chile
| | - Iván Brito
- Departamento de Química, Facultad de Ciencias BásicasUniversidad de Antofagasta Casilla 170 Antofagasta Chile
| | - Andrés Rivera
- Instituto de Farmacología y MorfofisiologíaFacultad de Ciencias Veterinarias Universidad Austral de Chile Valdivia Chile
| | - Rodrigo López‐Muñoz
- Instituto de Farmacología y MorfofisiologíaFacultad de Ciencias Veterinarias Universidad Austral de Chile Valdivia Chile
| | - Rodrigo Arancibia
- Laboratorio de Química Inorgánica y Organometálica, Facultad de Ciencias QuímicasUniversidad de Concepción Concepción Chile
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Cheng X, He H, Wang WX, Dong F, Zhang H, Ye J, Tan C, Wu Y, Lv X, Jiang X, Qin X. Semi-synthesis and characterization of some new matrine derivatives as insecticidal agents. PEST MANAGEMENT SCIENCE 2020; 76:2711-2719. [PMID: 32166856 DOI: 10.1002/ps.5817] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/06/2020] [Accepted: 03/12/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Matrine is an important traditional plant-derived insecticide with broad-spectrum activity. However, due to its moderate activity, matrine is mainly applied in combination with other pesticides. In order to discover new potential natural-product-based crop protection agents, a series of matrine derivatives characterized by cyclohexylamine group were synthesized to screen their insecticidal activity against seven typically agricultural pests. RESULTS The structural configurations of compounds were characterized by IR, 1 H NMR, 13 C NMR, MS and XRD, with the pure yields of 42%, 65% and 71%, respectively. Although all compounds showed poor insecticidal activity against five lepidoptera pests, the compounds 2 and 4 displayed remarkable insecticidal activities against Lipaphis erysimi and Mulberry Root-Knot Nematode with a concentration-dependent manner within 0.5~1.5 mg/ mL. Compared with matrine (60%), compounds 2 and 4 exhibited potent insecticidal activities against L. erysimi, with a corrected mortality of 83.3% and 89.7%, respectively. They also showed excellent control effects on Mulberry Root-Knot Nematode, with corrected mortality as high as 88% and 80%, respectively. CONCLUSION All four synthesized matrine derivatives showed poor insecticidal activity against five lepidoptera pests, but the compounds 2 and 4 exhibited much stronger insecticidal activities against L. erysimi and Mulberry Root-Knot Nematode than matrine. Combined with the structural characteristics of compounds 1~4, we conclude that 4-methylcyclohexylamine, not the carbon disulfide group or cyclohexylamine group alone, mainly contributed to the improvement of insecticidal activities of matrine derivatives against these two agricultural pests. This work provides a direction and foundation for structural optimization of the matrine pesticides in the future. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xingan Cheng
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
- Department of Ocean Science, The Hong Kong University of Science and Technology (HKUST),Clear Water Bay, Kowloon, Hong Kong, China
| | - Huiqing He
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong
| | - Fangyun Dong
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Hanhui Zhang
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Jingmin Ye
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Chuncan Tan
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Yuehua Wu
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Xiaojing Lv
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Xuhong Jiang
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Xiangjing Qin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS), Guangzhou, 510301, China
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Synthesis, theoretical calculation and anticancer activity of 4,6-diacetylresorcinol-dithiocarbazates and their Copper(II) complexes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128083] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Begum K, Begum S, Sheikh C, Miyatake R, Zangrando E. Cis versus trans arrangement of di-thio-carbazate ligands in bis-chelated Ni and Cu complexes. Acta Crystallogr E Crystallogr Commun 2020; 76:692-696. [PMID: 32431934 PMCID: PMC7199265 DOI: 10.1107/s205698902000506x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/09/2020] [Indexed: 11/22/2022]
Abstract
The structures are described of two bis-chelated metal complexes of nickel(II) and copper(II) with S-n-hexyl 3-(1-phenyl-ethyl-idene)di-thio-carbazate Schiff bases in a cis configuration, namely, bis-[S-n-hexyl 3-(1-phenyl-ethyl-idene)di-thio-carbazato-κ2 N 3,S]nickel(II), [Ni(C15H21N2S2)2], and bis-[S-n-hexyl 3-(1-phenyl-ethyl-idene)di-thio-carbazato-κ2 N 3,S]copper(II), [Cu(C15H21N2S2)2]. In both complexes, the metals have distorted square-planar geometries. A search in the Cambridge Structural Database [Groom et al. (2016 ▸). Acta Cryst. B72, 171-179] for bis-chelated nickel(II) and copper(II) complexes with similar Schiff bases retrieved 55 and 36 hits for the two metals, respectively. An analysis of the geometrical parameters of complexes showing cis and trans configurations is reported and the values compared with those for the complexes described in this work.
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Affiliation(s)
- Khurshida Begum
- Department of Physics, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Sabina Begum
- Department of Chemistry, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Chanmiya Sheikh
- Department of Applied Chemistry, Faculty of Engineering, University of Toyama, Gofuku, Toyama 3190, Japan
| | - Ryuta Miyatake
- Center for Environmental Conservation and Research Safety, University of Toyama, Gofuku, Toyama 3190, Japan
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Science, via Giorgieri 1/34127, Trieste, Italy
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Selective cytotoxicity of organotin(IV) compounds with 2,3-dihydroxybenzyldithiocarbazate Schiff bases. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04095-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Copper(II) complexes with pyridoxal dithiocarbazate and thiosemicarbazone ligands: crystal structure, spectroscopic analysis and cytotoxic activity. TRANSIT METAL CHEM 2019. [DOI: 10.1007/s11243-018-00299-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Yekke-Ghasemi Z, Takjoo R, Ramezani M, Mague JT. Molecular design and synthesis of new dithiocarbazate complexes; crystal structure, bioactivities and nano studies. RSC Adv 2018; 8:41795-41809. [PMID: 35558762 PMCID: PMC9091968 DOI: 10.1039/c8ra07100d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 09/24/2018] [Indexed: 01/09/2023] Open
Abstract
The syntheses of a new set of metal complexes MoO2L'(CH3OH), VOL'(CH3O)(CH3OH), , , SnL'Cl2 and SnL'I2 with a new ligand (L = (2,2'(disulfanediylbis((ethylthio)methylene)bis(hydrazin-2-yl-1-ylidene)bis(methanylylidene)) diphenol; L' = S-ethyl-3-(2-hydroxyphenyl)methylenedithiocarbazate are described along with characterization by elemental analysis, mass spectrometry, spectroscopic (IR, 1H- and 13C-NMR) and TGA techniques. The crystal structures of compounds were determined by single crystal X-ray diffraction analysis and compared to powder X-ray diffraction (PXRD) patterns of the nano complexes obtained using ultrasonic methods. The PXRD results indicate that the compounds synthesized by ultrasonic methods have high crystallinity. The compounds were evaluated in an in vitro cytotoxicity study with two human cancer cell lines. The results of this study revealed that all complexes exhibit good cytotoxic activity when compared to the clinical drug, cisplatin. Interaction of the samples with human serum albumin (HSA) was investigated using fluorescence spectrophotometric methods and the Stern-Volmer quenching constant (K SV) and free energy changes (ΔG) were calculated at 298 K. The fluorescence quenching method is used to determine the number of binding sites (n) and association constants (K a) at the same temperatures.
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Affiliation(s)
- Zahra Yekke-Ghasemi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad Mashhad Iran +98 513 880 5536
| | - Reza Takjoo
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad Mashhad Iran +98 513 880 5536
| | - Mohammad Ramezani
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences Mashhad Iran
| | - Joel T Mague
- Department of Chemistry, Tulane University New Orleans LA 70118 USA
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Lima FC, Silva TS, Martins CH, Gatto CC. Synthesis, crystal structures and antimicrobial activity of dimeric copper(II) complexes with 2-hydroxyphenyl-ethylidene-dithiocarbazates. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.08.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Rajan VK, Shameera Ahamed TK, Muraleedharan K. Studies on the UV filtering and radical scavenging capacity of the bitter masking flavanone Eriodictyol. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 185:254-261. [PMID: 29981487 DOI: 10.1016/j.jphotobiol.2018.06.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/26/2018] [Accepted: 06/27/2018] [Indexed: 11/17/2022]
Abstract
A computational analysis of UV filtering and radical scavenging capacity of a flavanone, Eriodictyol has been performed under DFT-B3LYP/6-31+ G (d, p). Eriodictyol is nontoxic and nonirritant bitter masker commonly used in the wine industry. It has been reported that the flavanones were widely acceptable for photoprotection due to its potential UV filtering and radical scavenging capacity. This study provides theoretical evidence that the eriodictyol has an absorbance in the UV-A and UV-B region of the electromagnetic spectrum and therefore can be used as a potential UV filter in sunscreen lotions and other cosmetic products. The major transitions in the UV-Visible spectrum of Eriodictyol are between HOMO and HOMO-1 with LUMO level and are well explained by NBO-NLMO tool in G09 software. In addition to this, Eriodictyol is a potent antioxidant than that of the most commonly studied Quercetin. The most active site in the compound is 3' position and is confirmed by NPA, NBO and pKa value analysis. The lowest energy conformer of Eriodictyol contains a Hydrogen bond between carbonyl oxygen (O2) and H30. This is confirmed by the highest value of interaction energy between lone pairs of O2 and σ* of O3- H30. Both the two lone pairs of O2 interacts with the σ* of O3-H30. This decreases the bond order of 5 OH and at the same time it restricts the hydrogen transfer from this position to form a radical. Similarly, the lone pair of O5 (3' position) interacts with H33 resulting in the low bond order value and consequently less favorable for radical formation. These results indicate that the BDE values follow the order 3' < 4' < 7 < 5. Thus the title compound can be used for photo protection due to its potential UV filtering and radical scavenging capacity.
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Affiliation(s)
- Vijisha K Rajan
- Department of Chemistry, University of Calicut, Malappuram 673635, India
| | | | - K Muraleedharan
- Department of Chemistry, University of Calicut, Malappuram 673635, India.
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Mohapatra RK, Das PK, Pradhan MK, Maihub AA, El-ajaily MM. Biological aspects of Schiff base–metal complexes derived from benzaldehydes: an overview. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1411-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Synthesis, characterisation and biological activities of S-2- or S-4-methylbenzyl-β-N-(di-2-pyridyl)methylenedithiocarbazate and Cu(II), Ni(II), Zn(II) and Cd(II) complexes. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.05.053] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bischelated complexes of a dithiocarbazate N,S Schiff base ligand: synthesis, characterization and antimicrobial activities. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0160-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yin Z, Sun W, Hu Y, Zhang C, Guan Q, Liu R, Chen P, Tian M. Utilization of acetic acid-[(hydrazinylthioxomethyl)thio]-sodium as a novel selective depressant for chalcopyrite in the flotation separation of molybdenite. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.01.049] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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