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Liu W, Qin Y, Liu S, Xing R, Yu H, Li P. Synthesis and Characterization of Slow-Release Chitosan Oligosaccharide Pyridine Schiff Base Copper Complexes with Antifungal Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3872-3883. [PMID: 38358096 DOI: 10.1021/acs.jafc.3c04601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Herein, a series of chitosan oligosaccharide copper complexes modified with pyridine groups (CPSx-Cu complexes) were successfully prepared via the Schiff base reaction and ion complexation reaction for slow-release fungicide. The structures of the synthesized derivatives were characterized via Fourier transform infrared spectroscopy and 1H and 13C nuclear magnetic resonance spectroscopy, and the unit configuration of the complexes was calculated using Gaussian software. The slow-release performance experiment demonstrated that the cumulative copper ion release rate of CPSx-Cu complexes was dependent on the type of substituents on the pyridine ring. Furthermore, the in vitro and in vivo antifungal activities of the CPSx-Cu complexes were investigated. At a concentration of 0.4 mg/mL, CPSx-Cu complexes completely inhibited the growth of Pythium vexans and Phytophthora capsici. Results indicated that CPSx-Cu complexes with slow-release ability exhibited better antifungal activity than thiodiazole-copper and copper sulfate basic. This study confirmed that combining chitosan oligosaccharide with bioactive pyridine groups and copper ions is an effective approach to further developing slow-release copper fungicides, providing new possibilities for the application of copper fungicides in green agriculture. This study lays the foundation for further studies on biogreen copper fungicides.
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Affiliation(s)
- Weixiang Liu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yukun Qin
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
| | - Song Liu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
| | - Ronge Xing
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
| | - Huahua Yu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
| | - Pengcheng Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
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Lopresti M, Kurowski Ł, Palin L, Milanesio M, Siedzielnik M, Gutmańska K, Dobrenko A, Klimczuk T, Pawelczyk E, Dołęga A. New heterometallic Co/Zn, Ag/Co, and Ag/Zn imidazolates: structural characterization and catalytic activity in the oxidation of organic compounds. Dalton Trans 2024; 53:2833-2847. [PMID: 38230705 DOI: 10.1039/d3dt03211f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Nanocrystalline powders of monometallic and bimetallic imidazolates of Co, Zn and Ag were produced by a reaction carried out in water. The powders were characterized by powder X-ray diffraction and the crystal structures of the new compounds Ag2ZnIm4 and Ag2CoIm4 (Im = imidazolate) were solved. Heterometallic Co/Zn imidazolates showed the known Zn-zni crystal structure while Ag/Zn and Ag/Co systems were isostructural to the copper analogs. The powders were further characterized by EDX, UV-Vis and FTIR ATR spectroscopy in the solid state. The catalytic experiments indicated that out of the studied heterometallic compounds only Ag2Co(Im)4 exhibits some catalytic activity in the oxidation reaction of 1-phenylethanol with tert-butylhydroperoxide at elevated temperatures.
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Affiliation(s)
- Mattia Lopresti
- Dipartimento di Scienze e Innovazione Tecnologica and CrisDi Interdepartmental Center for Crystallography, Università del Piemonte Orientale Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Łukasz Kurowski
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland.
| | - Luca Palin
- Dipartimento di Scienze e Innovazione Tecnologica and CrisDi Interdepartmental Center for Crystallography, Università del Piemonte Orientale Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Marco Milanesio
- Dipartimento di Scienze e Innovazione Tecnologica and CrisDi Interdepartmental Center for Crystallography, Università del Piemonte Orientale Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Magdalena Siedzielnik
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland.
| | - Karolina Gutmańska
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland.
| | - Adriana Dobrenko
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland.
| | - Tomasz Klimczuk
- Faculty of Applied Physics and Mathematics and Advanced Materials Centre, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland
| | - Ewelina Pawelczyk
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland.
- Department of Process Engineering and Chemical Technology, Chemical Faculty, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland
| | - Anna Dołęga
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza St. 11/12, 80-233, Gdańsk, Poland.
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Babijczuk K, Warżajtis B, Starzyk J, Mrówczyńska L, Jasiewicz B, Rychlewska U. Synthesis, Structure and Biological Activity of Indole-Imidazole Complexes with ZnCl 2: Can Coordination Enhance the Functionality of Bioactive Ligands? Molecules 2023; 28:molecules28104132. [PMID: 37241873 DOI: 10.3390/molecules28104132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/11/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023] Open
Abstract
The ability of the indole-imidazole hybrid ligands to coordinate with the Zn(II) ion and the resulting structures of this new class of coordination compounds were analyzed in order to determine their structural properties and biological functionalities. For this purpose, six novel Zn(II) complexes, [Zn(InIm)2Cl2] (1), [Zn(InMeIm)2Cl2] (2), [Zn(IniPrIm)2Cl2] (3), [Zn(InEtMeIm)2Cl2] (4), [Zn(InPhIm)2Cl2] (5) and [Zn2(InBzIm)2Cl2] (6) (where InIm is 3-((1H-imidazol-1-yl)methyl)-1H-indole), were synthesized by the reactions of ZnCl2 and the corresponding ligand in a 1:2 molar ratio in methanol solvent at an ambient temperature. The structural and spectral characterization of these complexes was performed using NMR, FT-IR and ESI-MS spectrometry and elemental analysis, and the crystal structures of 1-5 were determined using single-crystal X-ray diffraction. Complexes 1-5 form polar supramolecular aggregates by utilizing, for this purpose, the N-H(indole)∙∙∙Cl(chloride) intermolecular hydrogen bonds. The assemblies thus formed differ depending on the distinctive molecular shape, which can be either compact or extended. All complexes were screened for their hemolytic, cytoprotective, antifungal, and antibacterial activities. The results show that the cytoprotective activity of the indole/imidazole ligand significantly increases upon its complexation with ZnCl2 up to a value comparable with the standard antioxidant Trolox, while the response of its substituted analogues is diverse and less pronounced.
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Affiliation(s)
- Karolina Babijczuk
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Beata Warżajtis
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Justyna Starzyk
- Department of Soil Science and Microbiology, Faculty of Agronomy, Horticulture, and Bioengineering, University of Life Science, Szydłowska 50, 60-656 Poznań, Poland
| | - Lucyna Mrówczyńska
- Department of Cell Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Beata Jasiewicz
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Urszula Rychlewska
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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Jain S, Rana M, Sultana R, Mehandi R, Rahisuddin. Schiff Base Metal Complexes as Antimicrobial and Anticancer Agents. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2117210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shruti Jain
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Manish Rana
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Razia Sultana
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Rabiya Mehandi
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Rahisuddin
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
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Pincer Complexes Derived from Tridentate Schiff Bases for Their Use as Antimicrobial Metallopharmaceuticals. INORGANICS 2022. [DOI: 10.3390/inorganics10090134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Within the current challenges in medicinal chemistry, the development of new and better therapeutic agents effective against infectious diseases produced by bacteria, fungi, viruses, and parasites stands out. With chemotherapy as one of the main strategies against these diseases focusing on the administration of organic and inorganic drugs, the latter is generally based on the synergistic effect produced by the formation of metal complexes with biologically active organic compounds. In this sense, Schiff bases (SBs) represent and ideal ligand scaffold since they have demonstrated a broad spectrum of antitumor, antiviral, antimicrobial, and anti-inflammatory activities, among others. In addition, SBs are synthesized in an easy manner from one-step condensation reactions, being thus suitable for facile structural modifications, having the imine group as a coordination point found in most of their metal complexes, and promoting chelation when other donor atoms are three, four, or five bonds apart. However, despite the wide variety of metal complexes found in the literature using this type of ligands, only a handful of them include on their structures tridentate SBs ligands and their biological evaluation has been explored. Hence, this review summarizes the most important antimicrobial activity results reported this far for pincer-type complexes (main group and d-block) derived from SBs tridentate ligands.
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Selmi A, Said K, Nasri S, Tachoua W. Crystal Structure, Magnetic Study, and Antidiabetic Activity of Ni(II) Complex with N,O‐Donors Ligands. CRYSTAL RESEARCH AND TECHNOLOGY 2022. [DOI: 10.1002/crat.202200102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ahmed Selmi
- Laboratory of Physical Chemistry of Materials Faculty of Sciences of Monastir University of Monastir Monastir 5019 Tunisia
| | - Khemais Said
- Organic Chemistry Laboratory (LR17/ES08) Department of Chemistry Faculty of Sciences of Sfax University of Sfax Sfax 3018 Tunisia
| | - Saber Nasri
- Laboratory of Spectroscopic Characterization and Optical Materials, Physics Department Faculty of Science of Sfax University of Sfax Sfax 3018 Tunisia
| | - Wafa Tachoua
- Laboratory Nature and Life Sciences Department Benyoucef Benkhedda University Didouche Mourad Algiers 16000 Algeria
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Çeşme M. 2-Aminophenol-based ligands and Cu(II) complexes: synthesis, characterization, X-ray structure, thermal and electrochemical properties, and in vitro biological evaluation, ADMET study and molecular docking simulation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Synthesis, Characterization, Computational and Biological Activity of Some Schiff Bases and Their Fe, Cu and Zn Complexes. INORGANICS 2022. [DOI: 10.3390/inorganics10080112] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Four new symmetrical Schiff bases derived from 2,2′-diamino-6,6′-dibromo-4,4′-dimethyl-1,1′-biphenyl or 2,2′-diamino-4,4′-dimethyl-1,1′-biphenyl, and 3,5-dichloro- or 5-nitro-salicylaldehyde, were synthesized and reacted with copper-, iron- and zinc-acetate, producing the corresponding complexes. The Schiff bases and their metal complexes were characterized by 1H-, 13C-NMR, IR and UV-Vis spectroscopy and elemental analysis. The structures of one Schiff base and the two zinc complexes were resolved by X-ray structure determination. Density functional theory (DFT) calculations at the B3LYP/6-31G(d) level of the latter compounds were carried out to optimize and examine their molecular geometries. The biomedical applications of the Schiff bases and their complexes were investigated as anticancer or antimicrobial agents.
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Diana R, Caruso U, Gentile FS, Di Costanzo L, Panunzi B. A Novel L-Shaped Fluorescent Probe for AIE Sensing of Zinc (II) Ion by a DR/NIR Response. Molecules 2021; 26:molecules26237347. [PMID: 34885935 PMCID: PMC8658931 DOI: 10.3390/molecules26237347] [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: 11/04/2021] [Revised: 11/24/2021] [Accepted: 11/27/2021] [Indexed: 11/16/2022] Open
Abstract
In the field of optical sensors, small molecules responsive to metal cations are of current interest. Probes displaying aggregation-induced emission (AIE) can solve the problems due to the aggregation-caused quenching (ACQ) molecules, scarcely emissive as aggregates in aqueous media and in tissues. The addition of a metal cation to an AIE ligand dissolved in solution can cause a "turn-on" of the fluorescence emission. Half-cruciform-shaped molecules can be a winning strategy to build specific AIE probes. Herein, we report the synthesis and characterization of a novel L-shaped fluorophore containing a benzofuran core condensed with 3-hydroxy-2-naphthaldehyde crossed with a nitrobenzene moiety. The novel AIE probe produces a fast colorimetric and fluorescence response toward zinc (II) in both in neutral and basic conditions. Acting as a tridentate ligand, it produces a complex with enhanced and red-shifted emission in the DR/NIR spectral range. The AIE nature of both compounds was examined on the basis of X-ray crystallography and DFT analysis.
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Affiliation(s)
- Rosita Diana
- Department of Agriculture, University of Napoli Federico II, 80055 Portici, Italy; (R.D.); (L.D.C.)
| | - Ugo Caruso
- Department of Chemical Sciences, University of Napoli Federico II, 80126 Napoli, Italy; (U.C.); (F.S.G.)
| | - Francesco Silvio Gentile
- Department of Chemical Sciences, University of Napoli Federico II, 80126 Napoli, Italy; (U.C.); (F.S.G.)
| | - Luigi Di Costanzo
- Department of Agriculture, University of Napoli Federico II, 80055 Portici, Italy; (R.D.); (L.D.C.)
| | - Barbara Panunzi
- Department of Agriculture, University of Napoli Federico II, 80055 Portici, Italy; (R.D.); (L.D.C.)
- Correspondence: ; Tel.: +39-081-674-170
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Gopalakrishnan AK, Angamaly SA, Velayudhan MP. An Insight into the Biological Properties of Imidazole‐Based Schiff Bases: A Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202102619] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Anjali K. Gopalakrishnan
- Department of Applied Chemistry Cochin University of Science and Technology, Kochi 22 Kerala India
| | - Shanty A. Angamaly
- Department of Applied Chemistry Cochin University of Science and Technology, Kochi 22 Kerala India
| | - Mohanan P. Velayudhan
- Department of Applied Chemistry Cochin University of Science and Technology, Kochi 22 Kerala India
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