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Wang XZ, Cai BC, Zhou YJ, Zhou CW, Wu MM, Zhou XC, Wang FL, Zhou XP, Li D. Mesoporous metal-organic framework NH 2-MIL-101(Cr) as an efficient photocatalyst for the epoxidation of styrene. Dalton Trans 2024. [PMID: 39223940 DOI: 10.1039/d4dt01701c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Oxidation of styrene is a key reaction in the synthesis of pharmaceuticals and fine chemicals, and therefore oxidizing styrene with selective, efficient, and recyclable heterogeneous catalysts is significant from an environmental and economic standpoint. In this study, we report the transition Cr-based metal-organic framework [NH2-MIL-101(Cr)] as a heterogeneous photocatalyst, which efficiently promotes styrene epoxidation using H2O2 as a green oxidant, achieving high conversion efficiency (98%) and excellent selectivity (82%) under ambient conditions. Radical detection and quenching experiments reveal that the superoxide radical anion (O2˙-) acts as an active oxygen species, selectively promoting the oxidation of styrene to its oxidized form. This work provides insight into the development of a sustainable and cost-effective method for producing styrene oxide.
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Affiliation(s)
- Xue-Zhi Wang
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
- Department of Radiology, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Bing-Chen Cai
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
| | - Yi-Jie Zhou
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
| | - Chuang-Wei Zhou
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
| | - Ming-Min Wu
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
| | - Xian-Chao Zhou
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
| | - Fu-Li Wang
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China.
| | - Xiao-Ping Zhou
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
| | - Dan Li
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou 510632, China.
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2
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Islam MT, Bitu NA, Chaki BM, Hossain MJ, Asraf MA, Hossen MF, Kudrat-E-Zahan M, Latif MA. Water-soluble Schiff base ligands and metal complexes: an overview considering green solvent. RSC Adv 2024; 14:25256-25272. [PMID: 39139233 PMCID: PMC11320196 DOI: 10.1039/d4ra04310c] [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: 06/12/2024] [Accepted: 07/30/2024] [Indexed: 08/15/2024] Open
Abstract
The water-soluble metal complexes with Schiff base (SB) ligands are of great interest to green chemistry researchers due to their stability, cost-effectiveness, eco-friendly, electron-donating ability, and various applications. They have high potential to express their biological activity including anti-inflammatory, anticancer, antibacterial, antifungal, antioxidant, and DNA binding and cleavage. In the recent era, transition metal complexes have played a significant role in different processes such as hydrogenation, carbonylation, oxidation, reduction, epoxidation, hydrolysis, decomposition, and polymerization reactions in industry. However, their limited aqueous solubility may be the major limitation to their potential catalytic, industrial, and clinical applications. In industrial catalytic processes, it has been proven that water can be used as a solvent to minimize the environmental effect of different reactions as well as simple and complete separation. Water is a green solvent, flexible, non-toxic, safe, readily available, environmentally harmless, and inexpensive. Attaching different substituents on Schiff bases enhances the water solubility and catalytic activity. Studies on water-soluble SB complexes will explore these aspects and their prospects for the future evolution of their diverse applications.
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Affiliation(s)
- Md Tariqul Islam
- Department of Chemistry, Rajshahi University Rajshahi 6205 Bangladesh
| | - Nur Amin Bitu
- Department of Chemistry, Rajshahi University Rajshahi 6205 Bangladesh
| | | | - Md Jakir Hossain
- Department of Chemistry, Begum Rokeya University Rangpur Bangladesh
| | - Md Ali Asraf
- Department of Chemistry, Rajshahi University Rajshahi 6205 Bangladesh
| | - Md Faruk Hossen
- Department of Chemistry, Rajshahi University Rajshahi 6205 Bangladesh
| | - Md Kudrat-E-Zahan
- Department of Chemistry, Rajshahi University Rajshahi 6205 Bangladesh
| | - Md Abdul Latif
- Department of Chemistry, Begum Rokeya University Rangpur Bangladesh
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3
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Zhang C, Gao Y, Ma J, Li Y, Fan L, Li X. Visual Sensor Array for Multiple Aromatic Amines via Specific Ascorbic Acid Oxidase Mimic Triggered Schiff-Base Chemistry. Anal Chem 2024. [PMID: 39096243 DOI: 10.1021/acs.analchem.4c01841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2024]
Abstract
Redox nanozymes have exhibited various applications in recognizing environmental pollutants but not aromatic amines (a type of typical pollutant). Herein, with Cu2+ as a node and tryptophan (Trp) as a linker, Cu-Trp as a specific ascorbic acid oxidase mimic was synthesized, which could catalyze ascorbic acid (AA) oxidation to dehydroascorbic acid (DHAA). Alternatively, with other natural amino acids as linkers to synthesize Cu-based nanozymes, such catalytic performances are also observed. The as-produced DHAA could react with o-phenylenediamine (OPD) and its derivatives (2,3-naphthalene diamine (NDA), 4-nitro-o-phenylenediamine (4-NO2-OPD), 4-fluoro-o-phenylenediamine (4-F-OPD), 4-chloro-o-phenylenediamine(4-Cl-OPD), and 4-bromo-o-phenylenediamine(4-Br-OPD)) to form a Schiff base and emit fluorescence. Based on the results, with Cu-Trp + AA and Cu-Arg (with arginine (Arg) as a linker) + AA as two sensing channels and extracted red, green, and blue (RGB) values from emitted fluorescence as read-out signals, a visual sensor array was constructed to efficiently distinguish OPD, NDA, 4-NO2-OPD, 4-F-OPD, 4-Cl-OPD, and 4-Br-OPD as low as 10 μM. Such detecting performance was further confirmed through discriminating binary, ternary, quinary, and senary mixtures with various concentration ratios, recognizing 18 unknown samples, and even quantitatively analyzing single aromatic amine. Finally, the discriminating ability was further validated in environmental waters, providing an efficient assay for large-scale scanning levels of multiple aromatic amines.
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Affiliation(s)
- Chi Zhang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yuanbo Gao
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jinyang Ma
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yunchao Li
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Louzhen Fan
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Xiaohong Li
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
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4
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Šorm D, Blahut J, Bashta B, Císařová I, Vrbková E, Vyskočilová E, Sedláček J. Complex isomerism influencing the textural properties of organometallic [Cu(salen)] porous polymers: paramagnetic solid-state NMR characterization and heterogeneous catalysis. Dalton Trans 2024; 53:12162-12175. [PMID: 38963296 DOI: 10.1039/d4dt01305k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Although organometallic porous polymer networks are recognized as promising heterogeneous catalysts, the relationship between ligand/monomer geometry and network parameters is usually not well understood due to the lack of atom-resolved characterization methods for the amorphous network matrix. In this work, a series of copper(II) salen-type metal complexes was synthesized, using trans- and cis-1,2-diaminocyclohexane segments, and thoroughly characterized by single-crystal X-ray diffraction and solution- and solid-state NMR spectroscopy. Terminal ethynyl groups of the complexes were then transformed into polyacetylene chains by coordination chain-growth homopolymerization, resulting in highly porous (458-655 m2 g-1) organometallic polymer networks with a copper(II) ion content of about 12 wt%. The presence of paramagnetic copper(II) moieties in these complexes and respective polymer networks required the application of tailored NMR techniques, which together with X-ray crystallography and DFT calculations of the paramagnetic NMR shifts made it possible to investigate the differences in the complex geometry in liquid, powder and crystalline form and compare it with the complex geometry in polymer networks. All prepared organometallic polymer networks were also tested as heterogeneous catalysts for styrene oxidation with uncommonly high substrate conversions and compared with their low-molecular-weight analogues. The high reusability of such heterogeneous polymer-based catalysts was also proven.
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Affiliation(s)
- David Šorm
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic.
| | - Jan Blahut
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, Prague 6, 160 00, Czech Republic.
| | - Bogdana Bashta
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic
| | - Eva Vrbková
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Eliška Vyskočilová
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Jan Sedláček
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 43, Czech Republic.
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5
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Kumar S, Arora A, Maikhuri VK, Chaudhary A, Kumar R, Parmar VS, Singh BK, Mathur D. Advances in chromone-based copper(ii) Schiff base complexes: synthesis, characterization, and versatile applications in pharmacology and biomimetic catalysis. RSC Adv 2024; 14:17102-17139. [PMID: 38808245 PMCID: PMC11130647 DOI: 10.1039/d4ra00590b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 05/20/2024] [Indexed: 05/30/2024] Open
Abstract
Chromones are well known as fundamental structural elements found in numerous natural compounds and medicinal substances. The Schiff bases of chromones have a much wider range of pharmacological applications such as antitumor, antioxidant, anti-HIV, antifungal, anti-inflammatory, and antimicrobial properties. A lot of research has been carried out on chromone-based copper(ii) Schiff-base complexes owing to their role in the organometallic domain and promise as potential bioactive cores. This review article is centered on copper(ii) Schiff-base complexes derived from chromones, highlighting their diverse range of pharmacological applications documented in the past decade, as well as the future research opportunities they offer.
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Affiliation(s)
- Sumit Kumar
- Department of Chemistry, Bioorganic Research Laboratory, University of Delhi Delhi India
- Department of Chemistry and Environmental Science, Medgar Evers College 1638 Bedford Avenue, Brooklyn New York 11225 USA
| | - Aditi Arora
- Department of Chemistry, Bioorganic Research Laboratory, University of Delhi Delhi India
| | - Vipin K Maikhuri
- Department of Chemistry, Bioorganic Research Laboratory, University of Delhi Delhi India
| | - Ankita Chaudhary
- Department of Chemistry, Maitreyi College, University of Delhi Delhi India
| | - Rajesh Kumar
- Department of Chemistry, Bioorganic Research Laboratory, University of Delhi Delhi India
- Department of Chemistry, R. D. S College, B. R. A. Bihar University Muzaffarpur India
| | - Virinder S Parmar
- Department of Chemistry, Bioorganic Research Laboratory, University of Delhi Delhi India
- Department of Chemistry and Environmental Science, Medgar Evers College 1638 Bedford Avenue, Brooklyn New York 11225 USA
- Amity Institute of Click Chemistry and Research Studies, Amity University Sector 125 Noida 201313 Uttar Pradesh India
| | - Brajendra K Singh
- Department of Chemistry, Bioorganic Research Laboratory, University of Delhi Delhi India
| | - Divya Mathur
- Department of Chemistry, Bioorganic Research Laboratory, University of Delhi Delhi India
- Department of Chemistry, Daulat Ram College, University of Delhi Delhi India
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6
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Hassanpour H, Naeimi H. Fabrication and characterization of inorganic-organic hybrid copper ferrite anchored on chitosan Schiff base as a reusable green catalyst for the synthesis of indeno[1,2- b]indolone derivatives. RSC Adv 2024; 14:17296-17305. [PMID: 38812959 PMCID: PMC11134323 DOI: 10.1039/d3ra08705k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/29/2024] [Indexed: 05/31/2024] Open
Abstract
This study presents a description of the catalytic synthesis of indeno[1,2-b]indolone derivatives. In this method, initially, a Schiff base compound was synthesized from the reaction of acetylacetone with 2-hydroxyaniline. Then, the prepared Schiff base was immobilized on chelated magnetic copper ferrite nanoparticles with a chitosan surface to design and prepare the CuFe2O4@CS-SB nanocomposite. Further, the one-pot multi-component cyclization reaction of aniline, dimedone and ninhydrin was conducted using the synthesized nanocomposite as a heterogeneous acid catalyst in water solvent under thermal conditions. In this reaction, the products were obtained in excellent yields and short reaction times, and the catalyst could be recycled and reused six times without any loss in product yields. By conducting FT-IR spectroscopy, 1H NMR spectroscopy, XRD, FE-SEM, TGA, elemental mapping scanning, EDX and BET analyses, the structure of the nanocatalyst was characterized. In addition, for the identification of organic compounds, FT-IR, 1H NMR, and 13C NMR spectroscopies and melting point analysis were used, which confirmed the synthesis of this class of derivatives.
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Affiliation(s)
- Hannaneh Hassanpour
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan Kashan 87317-51167 I.R. Iran +983155912397 +983155912388
| | - Hossein Naeimi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan Kashan 87317-51167 I.R. Iran +983155912397 +983155912388
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7
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Majumdar D, Philip JE, Gassoumi B, Ayachi S, Abdelaziz B, Tüzün B, Roy S. Supramolecular clumps of μ 2-1,3-acetate bridges of Cd(II)-Salen complex: Synthesis, spectroscopic characterization, crystal structure, DFT quantization's, and antifungal photodynamic therapy. Heliyon 2024; 10:e29856. [PMID: 38707382 PMCID: PMC11066650 DOI: 10.1016/j.heliyon.2024.e29856] [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: 01/26/2024] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024] Open
Abstract
The article divulges the crystal growth, synthesis, and X-ray structure characterization of one centrosymmetric cadmium complex, [Cd{CdL(μ2-1,3-acetate)}2] using Salen ligand (SL). The complex is further characterized using spectroscopic and analytical techniques, including DRS, SEM-EDX, PXRD, and ICP-MS. The crystallographic study showed that the complex has a monoclinic space P21/c. Addison parameters (Ʈ) show the hexagonal geometry of the central Cd(II) metal ion. Hirshfeld surface and 2-D fingerprint confirm supramolecular contacts despite weak C-H⋯O and C-H···π interactions. Energy frameworks, FMOs, global reactivity parameters, MEP, and energy bandgap explain the complex reactivity outlook. The complex inter- and intramolecular bonding interactions were explored through natural bond orbital (NBO), QTAIM, NCI-RDG, Electron Location Function (ELF), and Localized Orbital Locator (LOL) quantization methods. In addition, the complex and its synthetic components in vitro antibacterial efficacy were investigated using Gram-positive and Gram-negative microbial strains. SAR (structure-activity relationship) correlates with biological potency. Molecular docking assessed antimicrobial potency with proteins S. aureus (PDB ID: 1JIJ), C. albicans (PDB ID: 1M7A), E. coli (PDB ID: 1T9U), P. aeruginosa (PDB ID: 2UV0), and A. Niger (PDB ID: 3K4P). The findings are backed by the Protein-Ligand Interaction Profiler (PLIP). The antifungal potency and cell viability test of C. albicans were conducted using photodynamic therapy (APDT).
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Affiliation(s)
- Dhrubajyoti Majumdar
- Department of Chemistry, Tamralipta Mahavidyalaya, Tamluk, 721636, West Bengal, India
| | | | - Bouzid Gassoumi
- Laboratory of Advanced Materials and Interfaces (LIMA), University of Monastir, Faculty of Sciences of Monastir, Avenue of Environment, 5000, Monastir, Tunisia
| | - Sahbi Ayachi
- Laboratory of Physico-Chemistry of Materials (LR01ES19), Faculty of Sciences, Avenue of the Environment 5019 Monastir, University of Monastir, Tunisia
| | - Balkis Abdelaziz
- Laboratory of Physico-Chemistry of Materials (LR01ES19), Faculty of Sciences, Avenue of the Environment 5019 Monastir, University of Monastir, Tunisia
| | - Burak Tüzün
- Sivas Cumhuriyet University, Sivas Vocational School, Department of Plant and Animal Production, TR-58140, Sivas, Turkey
| | - Sourav Roy
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012, India
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Suneetha G, Ayodhya D, Srikanth K, Manjari PS. Fabrication of CuNPs Using Schiff Base Ligand and Their Catalytic Reduction of Pharmaceutical Drugs, Fluorescence Selective Detection of Cd 2+, Antimicrobial, and Antioxidant Activities. J Fluoresc 2024; 34:1307-1318. [PMID: 37530931 DOI: 10.1007/s10895-023-03342-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/06/2023] [Indexed: 08/03/2023]
Abstract
Here, we have approached the synthesis of copper nanoparticles (CuNPs) Schiff base (5-trifluoromethoxy-2-(((2chloro-5-(methyl)phenyl)imino)methyl)phenol)). The synthesized CuNPs were characterized by UV-vis spectroscopy, PL, FTIR, powder XRD, and TEM analysis. From the UV-vis absorption spectroscopy, an absorption peak was observed at 585 nm. As a result of the powder XRD and TEM studies, spherical particle sizes ranged between 4 and 10 nm. FT-IR analysis confirmed the presence of functional groups ‒OH, C=C, -C=N-, and C‒H triggers the synthesis of CuNPs. Further, the catalytic property of the CuNPs were revealed by the degradation of pharmaceutical drugs such as Capecitabine (CAP) and Ciprofloxacin (CIP) in 90 min of reaction time in the presence of NaBH4. The reaction kinetics followed pseudo-first-order with k-values (rate constant) 0.248 min-1 and 0.307 min-1. In addition, the synthesized CuNPs have exhibited selective sensing detection of Cd2+ metal ions in different range of concentration (10-100 µM) by spectrofluorometrically with the limit of detection (LOD) is 0.0284 nM and limit of quantification (LOQ) is 0.0586 nM. The CuNPs revealed significant antioxidant activities against DPPH as a common free radical at 50 µg/mL with 71.24% of scavenging activity. The maximum antimicrobial potential and zone of inhibition of P. Aeruginosa is 17.25±0.8 mm and A. niger is 12.1 mm by using CuNPs.
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Affiliation(s)
- G Suneetha
- Department of Chemistry, University College of Science, Saifabad, Osmania University, Hyderabad, 500004, Telangana State, India
- Department of Chemistry, Telangana University, South Campus, Bhiknur, 503322, Telangana State, India
| | - Dasari Ayodhya
- Department of Chemistry, University College of Science, Saifabad, Osmania University, Hyderabad, 500004, Telangana State, India.
- Chemical Group, Intellectual Property India, Patent Office, GST Road, Guindy, Chennai, 600032, India.
| | - K Srikanth
- Department of Chemistry, Telangana University, South Campus, Bhiknur, 503322, Telangana State, India
| | - P Sunitha Manjari
- Department of Chemistry, University College of Science, Saifabad, Osmania University, Hyderabad, 500004, Telangana State, India.
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9
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Middya P, Frontera A, Chattopadhyay S. The crucial role of hydrogen bonding in shaping the structures of zinc-based coordination polymers using tridentate N, N, O donor reduced Schiff base ligands and bridging acetates. RSC Adv 2024; 14:13905-13914. [PMID: 38681845 PMCID: PMC11049752 DOI: 10.1039/d4ra00550c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024] Open
Abstract
In this manuscript we report the synthesis and characterization of two new polynuclear zinc(ii) complexes, [Zn2L1(μ-OAc)3]n·H2O (1) and [Zn2L2(μ-OAc)3]n (2) using two tridentate ligands, HL1 {4-chloro-2-(((2-(methylamino)ethyl)amino)methyl)phenol} and HL2 {2,4-dibromo-6-(((3-(methylamino)propyl)amino)methyl)phenol}. The structures were confirmed by single-crystal X-ray diffraction analysis. Both complexes form 1D chains. The energy of H-bonding interaction in the solid state structures of the complexes has been estimated by DFT calculation and the crucial role of hydrogen bonding in shaping their structures has been highlighted.
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Affiliation(s)
- Puspendu Middya
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears Crta de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares) Spain
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10
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Abudayyeh AM, Bennington MS, Hamonnet J, Marshall AT, Brooker S. Copper-based electrocatalyst for hydrogen evolution in water. Dalton Trans 2024; 53:6207-6214. [PMID: 38483208 DOI: 10.1039/d4dt00224e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
In aqueous pH 7 phosphate buffer, during controlled potential electrolysis (CPE) at -1.10 V vs. Ag|AgCl the literature square planar copper complex, [CuIILEt]BF4 (1), forms a heterogeneous deposit on the glassy carbon working electrode (GCWE) that is a stable and effective hydrogen evolution reaction (HER) electrocatalyst. Specifically, CPE for 20 hours using a small GCWE (A = 0.071 cm2) gave a turnover number (TON) of 364, with ongoing activity. During CPE the brownish-yellow colour of the working solution fades, and a deposit is observed on the small GCWE. Repeating this CPE experiment in a larger cell with a larger GCWE (A = 2.7 cm2), connected to a gas chromatograph, resulted in a TON of 2628 after 2.6 days, with FE = 93%, and with activity ongoing. After this CPE, the working solution had faded to nearly colourless, and visual inspection of the large GCWE showed a material had deposited on the surface. In a 'rinse and repeat test', this heterogeneous deposit was used for further CPE, in a freshly prepared working solution minus fresh catalyst, which resulted in similar ongoing HER activity to before, consistent with the surface deposited material being the active HER catalyst. EDS, PXRD and SEM analysis of this deposit shows that copper and oxygen are the main components present, most likely comprising copper and copper(I) oxide ((Cu2O)n) formed from 1. The use of 1 leads to a deposit that is more catalytically active than that formed when starting with a simple copper salt (control), likely due to it forming a more robustly attached deposit, which also enables the observed long-lived catalytic activity.
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Affiliation(s)
- Abdullah M Abudayyeh
- Department of Chemistry, University of Otago, Dunedin, 9016, New Zealand.
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Michael S Bennington
- Department of Chemistry, University of Otago, Dunedin, 9016, New Zealand.
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Johan Hamonnet
- Chemical and Process Engineering, University of Canterbury, Christchurch, 8041, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Aaron T Marshall
- Chemical and Process Engineering, University of Canterbury, Christchurch, 8041, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Sally Brooker
- Department of Chemistry, University of Otago, Dunedin, 9016, New Zealand.
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
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11
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Kim S, Jeon H, Koo JM, Oh DX, Park J. Practical Applications of Self-Healing Polymers Beyond Mechanical and Electrical Recovery. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2302463. [PMID: 38361378 DOI: 10.1002/advs.202302463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 12/15/2023] [Indexed: 02/17/2024]
Abstract
Self-healing polymeric materials, which can repair physical damage, offer promising prospects for protective applications across various industries. Although prolonged durability and resource conservation are key advantages, focusing solely on mechanical recovery may limit the market potential of these materials. The unique physical properties of self-healing polymers, such as interfacial reduction, seamless connection lines, temperature/pressure responses, and phase transitions, enable a multitude of innovative applications. In this perspective, the diverse applications of self-healing polymers beyond their traditional mechanical strength are emphasized and their potential in various sectors such as food packaging, damage-reporting, radiation shielding, acoustic conservation, biomedical monitoring, and tissue regeneration is explored. With regards to the commercialization challenges, including scalability, robustness, and performance degradation under extreme conditions, strategies to overcome these limitations and promote successful industrialization are discussed. Furthermore, the potential impacts of self-healing materials on future research directions, encompassing environmental sustainability, advanced computational techniques, integration with emerging technologies, and tailoring materials for specific applications are examined. This perspective aims to inspire interdisciplinary approaches and foster the adoption of self-healing materials in various real-life settings, ultimately contributing to the development of next-generation materials.
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Affiliation(s)
- Semin Kim
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Hyeonyeol Jeon
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Jun Mo Koo
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Dongyeop X Oh
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Department of Polymer Science and Engineering and Program in Environmental and Polymer Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Jeyoung Park
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, Republic of Korea
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12
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Song Y, Jin Z, Zhang J, Jin B, Peng R. Spiral gas-solid two-phase flow continuous mechanochemical synthesis of salophen complexes and catalytic thermal decomposition of ammonium perchlorate. Dalton Trans 2024; 53:3765-3776. [PMID: 38304968 DOI: 10.1039/d3dt03644h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Although mechanochemistry is increasingly becoming an alternative to traditional chemical synthesis, highly efficient continuous mechanochemical synthesis techniques are still rare. In this work, a novel spiral gas-solid two-phase flow (S-GSF) synthesis technique for the mechanochemical synthesis of salophen complexes has been reported, which is an approach for continuous synthesis based solely on airflow impacting the reaction. The synthesis of salophen-Br-Cu was used as a model reaction to optimize the reaction conditions, and three other salophen complexes, namely, salophen-Br-Co, salophen-Br-Ni, and salophen-Br-Zn were synthesized on this basis. The structure and thermal stability of the obtained products were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, UV-vis spectroscopy, nuclear magnetic resonance spectroscopy, scanning electron microscopy, and differential thermal analysis (DTA). The results showed that these complexes can be obtained continuously at a rate close to 4 g min-1, and the corresponding space-time yield is close to 1.2 × 105 kg m-3 day-1. In addition, DTA was used to analyze the catalytic performance of the complex for ammonium perchlorate (AP). The results showed that compared to the conditions for pure AP, salophen-Br-Co and salophen-Br-Cu could significantly reduce the high-temperature decomposition of AP pyrolysis to 77.0 and 102.1 °C, respectively. According to the method of Kissinger calculations, the Ea of AP decomposition decreased from 217.3 kJ mol-1 to 131.0 and 118.5 kJ mol-1, respectively. The TG data at different heating rates were analyzed using two isoconversion methods, i.e. Flynne-Walle-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS). The activation energies of AP, AP + 10 wt% salophen-Br-Co, and AP + 10 wt% salophen-Br-Cu were calculated. When the conversion degree (α) is between 0.1 and 0.9, the Ea values obtained from the two isoconversion methods are similar and exhibit certain matching. These two isoconversion methods also confirm Kissinger's calculations.
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Affiliation(s)
- Yong Song
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Zhiyuan Jin
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Juan Zhang
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Bo Jin
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Rufang Peng
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
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Li K, Tran NV, Pan Y, Wang S, Jin Z, Chen G, Li S, Zheng J, Loh XJ, Li Z. Next-Generation Vitrimers Design through Theoretical Understanding and Computational Simulations. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2302816. [PMID: 38058273 PMCID: PMC10837359 DOI: 10.1002/advs.202302816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/03/2023] [Indexed: 12/08/2023]
Abstract
Vitrimers are an innovative class of polymers that boast a remarkable fusion of mechanical and dynamic features, complemented by the added benefit of end-of-life recyclability. This extraordinary blend of properties makes them highly attractive for a variety of applications, such as the automotive sector, soft robotics, and the aerospace industry. At their core, vitrimer materials consist of crosslinked covalent networks that have the ability to dynamically reorganize in response to external factors, including temperature changes, pressure variations, or shifts in pH levels. In this review, the aim is to delve into the latest advancements in the theoretical understanding and computational design of vitrimers. The review begins by offering an overview of the fundamental principles that underlie the behavior of these materials, encompassing their structures, dynamic behavior, and reaction mechanisms. Subsequently, recent progress in the computational design of vitrimers is explored, with a focus on the employment of molecular dynamics (MD)/Monte Carlo (MC) simulations and density functional theory (DFT) calculations. Last, the existing challenges and prospective directions for this field are critically analyzed, emphasizing the necessity for additional theoretical and computational advancements, coupled with experimental validation.
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Affiliation(s)
- Ke Li
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
| | - Nam Van Tran
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yuqing Pan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Sheng Wang
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, 138634, Singapore
| | - Zhicheng Jin
- Laboratory for Biomaterials and Drug Delivery, The Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Guoliang Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Shuzhou Li
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jianwei Zheng
- Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Republic of Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, 138634, Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Republic of Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, 138634, Singapore
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117576, Singapore
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14
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Liu GL, Wu EH, Hung YC, Chou WC, Hung CH, Lin CC, Ko BT. Tetracosanuclear nickel complexes as effective catalysts for cycloaddition of carbon dioxide with epoxides. Dalton Trans 2024; 53:1425-1429. [PMID: 38179831 DOI: 10.1039/d3dt03460g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
A series of well-defined tetracosanuclear nickel complexes 3-7 facilely produced by one-pot synthesis were active catalysts for cycloaddition of CO2 and cyclohexene oxide (CHO). These nickel complexes were doughnut-like supramolecular coordination complexes involving eight repeating units, and each of them contains one Schiff base ligand and three nickel(II) ions. Notably, the 24-nuclear nickel cluster complex 3 in combination with nucleophilic additives was the most efficient catalyst to mediate CO2 coupling with CHO to generate CO2-based cis-cyclohexene carbonates. In addition to CO2/CHO cycloaddition, complex 3 was also found to effectively couple CO2 with other alicyclic epoxides, generating the corresponding cyclic carbonates. Additionally, kinetic investigations for CO2 cycloaddition of CHO using 3 were reported.
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Affiliation(s)
- Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - En-Hsu Wu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Yu-Ching Hung
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Wei-Chi Chou
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Chia-Hsin Hung
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Chu-Chieh Lin
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
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15
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Kalapos P, Kunfi A, Bogner MM, Holczbauer T, Kochman MA, Durbeej B, London G. Salicylideneaniline/Dithienylethene Hybrid Molecular Switches: Design, Synthesis, and Photochromism. J Org Chem 2024; 89:16-26. [PMID: 38060251 PMCID: PMC10777402 DOI: 10.1021/acs.joc.3c00828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
A hybrid molecular switch comprising salicylideneaniline (SA) and dithienylethene (DTE) moieties around a single benzene ring is reported. Due to an interplay between solvent-assisted enol-keto tautomerization in the former moiety and photochromic electrocyclization in the latter, this dithienylbenzene derivative was found to be photoresponsive at room temperature with a thermally stable closed form. The main photoproduct featuring ring-closed DTE and keto-enamine SA structures could be isolated and converted back to the starting material by irradiation with visible light. The optical properties of the potential structures involved in the overall process were characterized by using density functional theory (DFT) calculations in good agreement with the measured data. The reversibility of the conversion could be tuned by the presence of donor and acceptor substituents, while the introduction of the imine in the form of a benzothiazole moiety enabled photochemistry even in nonprotic solvents.
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Affiliation(s)
- Péter
Pál Kalapos
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute of Organic Chemistry, Research Centre for
Natural Sciences, Magyar
Tudósok Krt. 2, 1117 Budapest, Hungary
| | - Attila Kunfi
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute of Organic Chemistry, Research Centre for
Natural Sciences, Magyar
Tudósok Krt. 2, 1117 Budapest, Hungary
| | - Marcell M. Bogner
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute of Organic Chemistry, Research Centre for
Natural Sciences, Magyar
Tudósok Krt. 2, 1117 Budapest, Hungary
| | - Tamás Holczbauer
- Institute
of Organic Chemistry, Centre for Structural
Science, Research Centre for Natural Sciences, Magyar Tudósok Krt. 2, 1117 Budapest, Hungary
| | - Michał Andrzej Kochman
- Institute
of Physical Chemistry, Polish Academy of
Sciences, Marcina Kasprzaka
44/52, 01-224 Warsaw, Poland
| | - Bo Durbeej
- Division
of Theoretical Chemistry, IFM, Linköping
University, SE-58183 Linköping, Sweden
| | - Gábor London
- MTA
TTK Lendület Functional Organic Materials Research Group, Institute of Organic Chemistry, Research Centre for
Natural Sciences, Magyar
Tudósok Krt. 2, 1117 Budapest, Hungary
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16
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Abdelgawad ZA, Abd El-Wahed MN, Ahmed AA, Madbouly SM, El-Sayyad GS, Khalafallah AA. Assessment of heavy metal accumulation and health risk in three essential edible weeds grown on wastewater irrigated soil. Sci Rep 2023; 13:21768. [PMID: 38066115 PMCID: PMC10709593 DOI: 10.1038/s41598-023-48763-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
The main problem facing Egypt recently is the shortage of available water resources. Therefore, farmers resort to use wastewater for irrigation. So, the present work aims to assess the impacts of wastewater irrigation on the productivity of three edible weeds (Cichorium endivia, Sonchus oleraceous and Beta vulgaris) and its effect on the nutritional value of plants and its risk on human health. This study will focus on Shibin Al Kanater region, and the physicochemical characteristics of drainage water, canal water, drainage water-irrigated soils and canal-irrigated soils were estimated. The vegetative and traits of edible weeds were determined including their photosynthetic pigments, organic and inorganic nutrients content, and heavy metals content. The health risk index (HRI) associated with consumption of polluted plants was created using the estimated exposure factor of a crop to the oral reference dosage of the toxic metal. The main results showed that biomass productivity of S. oleraceous, B. vulgaris and C. endivia increased due to drainage water irrigation with increasing percentage as 27.9, 19.6, and 19.1%, respectively. Irrigation with drainage water significantly increased the photosynthetic pigments of edible weeds. Irrigation with drainage water increased carbohydrate content, crude protein, total soluble sugar, and gross energy in all studied weeds. C. endivia, S. oleraceus and B. vulgaris plants irrigated with canal and drainage water could accumulate Fe, Zn, Cu, and Co in their roots. C. endivia, S. oleraceus and B. vulgaris plants irrigated with canal water indicated HRI more than the unit for Mn, Cu, Pb, and Cd. This research advises that regulation be put in place to prohibit irrigation using untreated drainage and to restrict the discharge of industrial, domestic, and agricultural wastewater into irrigation canals.
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Affiliation(s)
- Zinab A Abdelgawad
- Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt.
| | - Mona N Abd El-Wahed
- Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
| | - Asmaa A Ahmed
- Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
| | - Seliem M Madbouly
- Chemistry Lab, Fresh Water Division, National Institute of Oceanography and Fisher (NIOF), Cairo, Egypt
| | - Gharieb S El-Sayyad
- Microbiology and Immunology Department, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt.
- Microbiology and Immunology Department, Faculty of Pharmacy, Galala University, New Galala City, Suez, Egypt.
- Drug Microbiology Lab, Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Ahmed A Khalafallah
- Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
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17
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Waheed M, Idris S, Jan F, Alam A, Alam A, Ibrahim M, AlAsmari AF, Alharbi M, Alasmari F, Khan M. Exploring the synthesis, structure, spectroscopy and biological activities of novel 4-benzylidene-1-(2-(2,4-dichloro phenyl)acetyl) thiosemicarbazide derivatives: An integrated experimental and theoretical investigation. Saudi Pharm J 2023; 31:101874. [PMID: 38088945 PMCID: PMC10711186 DOI: 10.1016/j.jsps.2023.101874] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/12/2023] [Indexed: 06/24/2024] Open
Abstract
BACKGROUND Novel α-amylase inhibitors play a crucial role in managing diabetes and obesity, contributing to improved public health by addressing these challenging and prevalent conditions. Moreover, the synthesis of anti-oxidant agents is essential due to their potential in combating oxidative stress-related diseases and promoting overall health. OBJECTIVE Synthesis of thoisemicarbazone derivatives of 2,4-dichlorophenyl acetic acid and to screened them for their biological activities. METHOD Thiosemicarbazone derivatives (4-13) were synthesized by refluxing 2,4-dichlorophenyl acetic acid with sulfuric acid in ethanol to get the ester (2), which was further refluxed with thiosemicarbazide to get compound (3). Finally, different aromatic aldehydes were refluxed with compound (3) in ethanol in catalytic amount of acetic acid to obtained the final products (4-13). Using modern spectroscopic techniques including HR-ESI-MS, 13C-, and 1H NMR, the structures of the created derivatives were confirmed. RESULTS The synthesized derivatives showed excellent to good inhibitory activity in the range of IC50 values of 4.95 ± 0.44 to 69.71 ± 0.05 µM against α-amylase enzyme when compared to standard drug acarbose (IC50 = 21.55 ± 1.31 µM). In case of iron chelating activity, these products showed potent activity better than standard EDTA (IC50 = 66.43 ± 1.07 µM) in the range of IC50 values of 22.43 ± 2.09 to 61.21 ± 2.83 µM. However, the obtained products also show excellent to good activity in the range of IC50 values of 28.30 ± 1.17 to 64.66 ± 2.43 µM against hydroxyl radical scavenging activity when compared with standard vitamin C (IC50 = 60.51 ± 1.02 µM). DFT used to calculate different reactivity factors including ionization potential, electronegativity, electron affinity, chemical softness, and chemical hardness were calculated using frontier molecular orbital (FMO) computations. The molecular docking studies for the synthesized derivatives with α-amylase were carried out using the AutoDock Vina to understand the binding affinities with active sites of the protein.
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Affiliation(s)
- Mahnoor Waheed
- Department of Chemistry, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Sana Idris
- Department of Chemistry, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Faheem Jan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, Shenyang, Liaoning 110016, People's Republic of China
| | - Aftab Alam
- Department of Chemistry, University of Malakand, Chakdara, Lower Dir 18800, Pakistan
| | - Aftab Alam
- Department of Biochemistry, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Muhammad Ibrahim
- Department of Chemistry, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Abdullah F. AlAsmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fawaz Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Momin Khan
- Department of Chemistry, Abdul Wali Khan University, Mardan 23200, Pakistan
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18
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Kaur M, Virender, Khatkar S, Singh B, Kumar A, Dubey SK. Recent Advancements in Sensing of Silver ions by Different Host Molecules: An Overview (2018-2023). J Fluoresc 2023:10.1007/s10895-023-03494-8. [PMID: 38038876 DOI: 10.1007/s10895-023-03494-8] [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: 10/09/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023]
Abstract
The chemosensors act as powerful tool in the detection of metal ions due to their simplicity, high sensitivity, low cost, low detection limit, rapid photophysical response, and application to the environmental and medical fields. This review article presents an overview for the chemosensing of Ag+ ions based on Calix, MOF, Nanoparticle, COF, Calix, Electrochemical chemosensor published from 2018 to 2023. Here, we have reviewed the sensing of Ag+ ions and summarised the binding response, mechanism, LOD, colorimetric response, adsorption capacity, technique used. The purpose of this review article to provide a detailed summary of the performance of different host chemosensors that are helpful for providing future direction to researchers on Ag+ ion detection and provides path to design effective chemsosensor (simple to synthesize, cost effective, high sensitivity, with more practical application). While studying the related article literature, we came across some challenges and that has been discussed lastly and provided solutions for them.
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Affiliation(s)
- Manpreet Kaur
- Department of Chemistry, Institute of Integrated & Honors Studies, Kurukshetra University Kurukshetra, Kurukshetra, 136119, India
| | - Virender
- Department of Chemistry, Kurukshetra University Kurukshetra, Kurukshetra, 136119, India
| | - Sunita Khatkar
- Department of Chemistry, Institute of Integrated & Honors Studies, Kurukshetra University Kurukshetra, Kurukshetra, 136119, India
| | - Baljit Singh
- MiCRA Biodiagnostics Technology Gateway & Centre of Applied Science for Health, Technological University Dublin (TU Dublin), Dublin, D24 FKT9, Ireland
| | - Ashwani Kumar
- Department of Chemistry, Kurukshetra University Kurukshetra, Kurukshetra, 136119, India.
| | - Santosh Kumar Dubey
- Department of Chemistry, Institute of Integrated & Honors Studies, Kurukshetra University Kurukshetra, Kurukshetra, 136119, India.
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19
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Swatiputra AA, Mukherjee D, Dinda S, Roy S, Pramanik K, Ganguly S. Electron transfer catalysis mediated by 3d complexes of redox non-innocent ligands possessing an azo function: a perspective. Dalton Trans 2023; 52:15627-15646. [PMID: 37792473 DOI: 10.1039/d3dt02567e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
It was first reported almost two decades ago that ligands with azo functions are capable of accepting electron(s) upon coordination to produce azo-anion radical complexes, thereby exhibiting redox non-innocence. Over the past two decades, there have been numerous reports of such complexes along with their structures and diverse characteristics. The ability of a coordinated azo function to accept one or more electron(s), thereby acting as an electron reservoir, is currently employed to carry out electron transfer catalysis since they can undergo redox transformation at mild potentials due to the presence of energetically accessible energy levels. The cooperative involvement of redox non-innocent ligand(s) containing an azo group and the coordinated metal centre can adjust and modulate the Lewis acidity of the latter through selective ligand-centred redox events, thereby manipulating the capacity of the metal centre to bind to the substrate. We have summarized the list of first row transition metal complexes of iron, cobalt, nickel, copper and zinc with redox non-innocent ligands incorporating an azo function that have been exploited as electron transfer catalysts to effectuate sustainable synthesis of a wide variety of useful chemicals. These include ketazines, pyrimidines, benzothiazole, benzoxazoles, N-acyl hydrazones, quinazoline-4(3)H-ones, C-3 alkylated indoles, N-alkylated anilines and N-alkylated heteroamines. The reaction pathways, as demonstrated by catalytic loops, reveal that the azo function of a coordinated ligand can act as an electron sink in the initial steps to bring about alcohol oxidation and thereafter, they serve as an electron pool to produce the final products either via HAT or PCET processes.
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Affiliation(s)
- Alok Apan Swatiputra
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
| | - Debaarjun Mukherjee
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
| | - Soumitra Dinda
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
| | - Subhadip Roy
- Department of Chemistry, The ICFAI University Tripura, Tripura 799210, India
| | - Kausikisankar Pramanik
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata - 700032, India
| | - Sanjib Ganguly
- Department of Chemistry, St. Xavier's College (Autonomous), Kolkata - 700016, India.
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20
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Yalazan H, Koç D, Aydın Kose F, Fandaklı S, Tüzün B, Akgül Mİ, Sadeghian N, Taslimi P, Kantekin H. Design, syntheses, theoretical calculations, MM-GBSA, potential anti-cancer and enzyme activities of novel Schiff base compounds. J Biomol Struct Dyn 2023:1-14. [PMID: 37921706 DOI: 10.1080/07391102.2023.2274972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
In this study, new Schiff base compounds (SB-F-OH, SB-Cl-OH and SB-Br-OH) were derived from chalcone-derived amine compounds containing halogen groups and 4-hydroxybenzaldehyde. Also, their phthalonitrile compounds (SB-F-CN, SB-Cl-CN and SB-Br-CN) have been synthesized. The structures of these compounds were elucidated by NMR, FT-IR and Mass spectroscopic methods. The quantum chemical parameters were calculated at B3LYP/6-31++g(d,p), HF/6-31++g(d,p) and M062X/6-31++g(d,p) levels. As the biological application of the synthesized compounds, (i) their inhibition properties of the synthesized compounds on Acetylcholinesterase (AChE) and Butyrylcholinesterase (BChE) metabolic enzymes were investigated, and their potential anticancer activities against neuroblastoma (NB; SH-SY5Y) and healthy fibroblast (NIH-3T3) cell lines were determined by in vitro assays. All compounds showed inhibition at nanomolar level with the Ki values in the range of 97.86 ± 30.51-516.82 ± 31.42 nM for AChE, 33.21 ± 4.45-78.50 ± 8.91 nM for BChE, respectively. It has been determined that all tested compounds have a remarkable cytotoxic effect against SH-SY5Y, and IC50 values were significantly lower than NIH-3T3 cells. The lowest IC50 value was observed in SB-Cl-OH (7.48 ± 0.86 µM) and SB-Cl-CN (7.31 ± 0.69 µM). The molecular docking of the molecules was also investigated using crystal structure of AChE enzyme protein (PDB ID: 4M0E), crystal structure of BChE protein (PDB ID: 6R6V) and SH-SY5Y cancer protein (PDB ID: 2F3F, 3PBL and 5WIV). The ADME properties of the compounds were investigated. MM/GBSA method is calculated binding free energy. Afterwards, ADME/T analysis was performed to examine the some properties of the molecules.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Halise Yalazan
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Türkiye
| | - Damla Koç
- Department of Chemistry, Faculty of Sciences, Erciyes University, Kayseri, Türkiye
| | - Fadime Aydın Kose
- Department of Biochemistry, Faculty of Pharmacy, Izmir Katip Celebi University, İzmir, Türkiye
| | - Seda Fandaklı
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Türkiye
| | - Burak Tüzün
- Plant and Animal Production Department, Technical Sciences Vocational School of Sivas, Sivas Cumhuriyet University, Sivas, Türkiye
| | - Muhammed İsmail Akgül
- Department of Biochemistry, Faculty of Pharmacy, Izmir Katip Celebi University, İzmir, Türkiye
| | - Nastaran Sadeghian
- Department of Biotechnology, Faculty of Sciences, Bartin University, Bartin, Türkiye
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Sciences, Bartin University, Bartin, Türkiye
| | - Halit Kantekin
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Türkiye
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21
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Hassan SS, Nader M, Nagy M, Mohamed M, Nader M, Zakaria M, Mohamed N, Waleed R, Rashidi FB. Antimicrobial screening involving Helicobacter pylori of nano-therapeutic compounds based on the amoxicillin antibiotic drug. Helicobacter 2023; 28:e13004. [PMID: 37391943 DOI: 10.1111/hel.13004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 05/28/2023] [Accepted: 06/05/2023] [Indexed: 07/02/2023]
Abstract
Nano-structure Cu(II) complex [Cu(AMAB)2 ]Cl2 with Schiff base (AMAB) derived from the condensation between 4-(dimethylamino)benzaldehyde and amoxicillin trihydrate was prepared. (AMAB) Schiff base and its Cu(II) complex were identified and confirmed by different physicochemical techniques. The Schiff base (AMAB) was coordinated to copper ion through carbonyl oxygen and imine nitrogen donor sites. X-ray powder diffraction shows a cubic crystal system of the Cu(II) complex. The density functional theory was used to optimize the structure geometries of the investigated compounds. The molecular docking of the active amino acids of the investigated proteins' interactions with the tested compounds was evaluated. The bactericidal or bacteriostatic effect of the compounds was screened against some bacterial strains. The activity of Cu-chelate against Gram-negative bacteria was mainly more effective than its (AMAB) ligand and vice versa in the case of Gram-positive bacteria. The biological activity of the prepared compounds with biomolecules calf thymus DNA (CT-DNA) was determined by electronic absorption spectra and DNA gel electrophoresis technique. All studies revealed that the Cu-chelate derivative exhibited better binding affinity to both CT-DNA than the AMAB and amoxicillin itself. The anti-inflammatory effect of the designed compounds was determined by testing their protein denaturation inhibitory activity spectrophotometrically. All obtained data supported that the designed nano-Cu(II) complex with Schiff base (AMAB) is a potent bactericide against H. pylori, and exhibits anti-inflammatory activity. The dual inhibition effects of the designed compound represent a modern therapeutic approach with extended spectrum of action. Therefore, it can act as good drug target in antimicrobial and anti-inflammtory therapies. Finally, H. pylori resistance to amoxicillin is absent or rare in many countries, thus amoxicillin nanoparticles may be beneficial for countries where amoxicillin resistance is reported.
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Affiliation(s)
- Safaa S Hassan
- Department of Chemistry, Inorganic Chemistry Division, Faculty of Science, Cairo University, Giza, Egypt
| | - Madonna Nader
- Department of Biotechnology, Faculty of Science, Cairo University, Giza, Egypt
| | - Maria Nagy
- Department of Biotechnology, Faculty of Science, Cairo University, Giza, Egypt
| | - Mennatallah Mohamed
- Department of Biotechnology, Faculty of Science, Cairo University, Giza, Egypt
| | - Mennatulla Nader
- Department of Biotechnology, Faculty of Science, Cairo University, Giza, Egypt
| | - Mina Zakaria
- Department of Biotechnology, Faculty of Science, Cairo University, Giza, Egypt
| | - Nada Mohamed
- Department of Biotechnology, Faculty of Science, Cairo University, Giza, Egypt
| | - Rawan Waleed
- Department of Biotechnology, Faculty of Science, Cairo University, Giza, Egypt
| | - Fatma B Rashidi
- Department of Chemistry, Biochemistry Division, Faculty of Science, Cairo University, Giza, Egypt
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22
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Varshney A, Mishra AP. Synthesis, spectral characterization, computational studies, antifungal, DNA interaction, antioxidant and fluorescence property of novel Schiff base ligand and its metal chelates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 297:122765. [PMID: 37099994 DOI: 10.1016/j.saa.2023.122765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/30/2023] [Accepted: 04/17/2023] [Indexed: 05/14/2023]
Abstract
Cobalt, Copper, Nickel and Zinc coordinated metal complexes were synthesized by novel thiazole Schiff base ligand 2-ethoxy-4-((5-methylthiazol-2-ylimino)methyl) phenol derived from 3-ethoxy-4-hydroxybenzaldehyde and 2-amino- 5-methylthiazol. The synthesized compounds were spectrochemically characterized by elemental analysis, molar conductance, FT-IR, UV-Vis, Mass spectral analysis, Powdered-XRD and cyclic voltammetry. The thermal stability of synthesized complexes were investigated by using thermogravimetric analysis (TGA). Theoretical computational study were performed for all the synthesized compounds utilizing the DFT/B3LYP method at the 6-31G basic set for Schiff base ligand whereas LANL2DZ basis set for metal complexes. Molecular Electrostatic Potential (MEP), HOMO-LUMO, Mulliken charges and global reactivity descriptors, including chemical potential (μ), global softness (S), chemical hardness (η), and electrophilicity index (ω) were measured and correlated with antimicrobial activity. The synthesized thiazole Schiff base ligand and its coordinated metal complexes shows good antifungal agreement against Fusarium Oxysporum and Aspergillus Niger species. These compounds also exhibit DNA binding, DNA cleaving and antioxidant activity. All the synthesized molecules indicate potential fluorescence property.
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Affiliation(s)
- Anshita Varshney
- Department of Chemistry, Dr. Hari Singh Gour Vishwavidyalaya (a Central University), Sagar, Madhya Pradesh 470003, India.
| | - A P Mishra
- Department of Chemistry, Dr. Hari Singh Gour Vishwavidyalaya (a Central University), Sagar, Madhya Pradesh 470003, India.
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23
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Layaida H, Hellal A, Chafai N, Haddadi I, Imene K, Anis B, Mouna E, Bensouici C, Sobhi W, Attoui A, Lilia A. Synthesis, spectroscopic characterization, density functional theory study, antimicrobial and antioxidant activities of curcumin and alanine-curcumin Schiff base. J Biomol Struct Dyn 2023; 41:7551-7566. [PMID: 36120951 DOI: 10.1080/07391102.2022.2123043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/03/2022] [Indexed: 10/14/2022]
Abstract
In this work, a novel Schiff-base derived from curcumin and L-Alanine was synthesized under microwave conditions in excellent yield. The structural characterization has been carried out from their elemental analyses, FTIR, UV-Vis and 13C-NMR and 1H-NMR spectral techniques. The Schiff base (Cur-Ala) and curcumin (Cur) have been screened for their antimicrobial activity toward some pathogens clinically important microorganisms: Bacillus subtilis, Escherichia coli and Staphylococcus aureus, Aspergillus niger and Candida albicans. Result found that the Schiff base was more active than the curcumin. The antibacterial and antifungal activities of Cur-Ala can be attributed to its greatest dipole moment, as shown by theoretical calculations. Also, the antioxidant activity of Schiff base and curcumin were studied by DPPH, cupric ion reducing antioxidant capacity and o-phenanthroline techniques. Results indicate that Cur-Ala and Cur show more antioxidant activities than the standard antioxidants (BHT and BHA). Quantum chemical parameter calculations of Cur-Ala and Cur have been investigated by DFT using B3LYP/6-31G (d,p) basis set method to calculate the optimized structure, atomic charges, MESP, global reactivity descriptors and thermomolecular proprieties of both molecules.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Houdheifa Layaida
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
| | - Abdelkader Hellal
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
- Département de Chimie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
| | - Nadjib Chafai
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
| | - Ines Haddadi
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
- Département de Chimie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
| | - Kirouani Imene
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
- Département de Chimie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
| | - Bouchama Anis
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
- Département de Chimie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
| | - ElKolli Mouna
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
| | - Chawki Bensouici
- Centre de Recherche en Biotechnologie (CRBt), Ali Mendjli, Constantine, Algeria
| | - Widad Sobhi
- Centre de Recherche en Biotechnologie (CRBt), Ali Mendjli, Constantine, Algeria
- Laboratory of Applied Biochemistry, Faculty of Nature and Life Sciences, Université Ferhat Abbas Sétif-1, Sétif, Algeria
| | - Ayoub Attoui
- Laboratory of Applied Biochemistry, Faculty of Nature and Life Sciences, Université Ferhat Abbas Sétif-1, Sétif, Algeria
- Laboratoire des Matériaux Polymères Multiphasiques, LMPMP, Université Ferhat ABBAS Sétif-1, Sétif, Algeria
| | - Adjissi Lilia
- Laboratoire d'Electrochimie des Matériaux Moléculaires et des Complexes (LEMMC), Département de Génie des procédés, Faculté de Technologie, Université Ferhat Abbas- Sétif 1, Sétif, Algeria
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24
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Ferraz-Caetano J, Teixeira F, Cordeiro MNDS. Systematic Development of Vanadium Catalysts for Sustainable Epoxidation of Small Alkenes and Allylic Alcohols. Int J Mol Sci 2023; 24:12299. [PMID: 37569673 PMCID: PMC10418365 DOI: 10.3390/ijms241512299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/27/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
The catalytic epoxidation of small alkenes and allylic alcohols includes a wide range of valuable chemical applications, with many works describing vanadium complexes as suitable catalysts towards sustainable process chemistry. But, given the complexity of these mechanisms, it is not always easy to sort out efficient examples for streamlining sustainable processes and tuning product optimization. In this review, we provide an update on major works of tunable vanadium-catalyzed epoxidations, with a focus on sustainable optimization routes. After presenting the current mechanistic view on vanadium catalysts for small alkenes and allylic alcohols' epoxidation, we argue the key challenges in green process development by highlighting the value of updated kinetic and mechanistic studies, along with essential computational studies.
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Affiliation(s)
- José Ferraz-Caetano
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, S/N, 4169-007 Porto, Portugal;
| | - Filipe Teixeira
- CQUM, Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
| | - Maria Natália Dias Soeiro Cordeiro
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, S/N, 4169-007 Porto, Portugal;
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25
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Islam M, Khan A, Khan M, Halim SA, Ullah S, Hussain J, Al-Harrasi A, Shafiq Z, Tasleem M, El-Gokha A. Synthesis and biological evaluation of 2-nitrocinnamaldehyde derived thiosemicarbazones as urease inhibitors. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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26
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Serafim LF, Jayasinghe-Arachchige VM, Wang L, Rathee P, Yang J, Moorkkannur N S, Prabhakar R. Distinct chemical factors in hydrolytic reactions catalyzed by metalloenzymes and metal complexes. Chem Commun (Camb) 2023. [PMID: 37366367 DOI: 10.1039/d3cc01380d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
The selective hydrolysis of the extremely stable phosphoester, peptide and ester bonds of molecules by bio-inspired metal-based catalysts (metallohydrolases) is required in a wide range of biological, biotechnological and industrial applications. Despite the impressive advances made in the field, the ultimate goal of designing efficient enzyme mimics for these reactions is still elusive. Its realization will require a deeper understanding of the diverse chemical factors that influence the activities of both natural and synthetic catalysts. They include catalyst-substrate complexation, non-covalent interactions and the electronic nature of the metal ion, ligand environment and nucleophile. Based on our computational studies, their roles are discussed for several mono- and binuclear metallohydrolases and their synthetic analogues. Hydrolysis by natural metallohydrolases is found to be promoted by a ligand environment with low basicity, a metal bound water and a heterobinuclear metal center (in binuclear enzymes). Additionally, peptide and phosphoester hydrolysis is dominated by two competing effects, i.e. nucleophilicity and Lewis acid activation, respectively. In synthetic analogues, hydrolysis is facilitated by the inclusion of a second metal center, hydrophobic effects, a biological metal (Zn, Cu and Co) and a terminal hydroxyl nucleophile. Due to the absence of the protein environment, hydrolysis by these small molecules is exclusively influenced by nucleophile activation. The results gleaned from these studies will enhance the understanding of fundamental principles of multiple hydrolytic reactions. They will also advance the development of computational methods as a predictive tool to design more efficient catalysts for hydrolysis, Diels-Alder reaction, Michael addition, epoxide opening and aldol condensation.
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Affiliation(s)
- Leonardo F Serafim
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | | | - Lukun Wang
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | - Parth Rathee
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | - Jiawen Yang
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | | | - Rajeev Prabhakar
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
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27
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Mureseanu M, Filip M, Bleotu I, Spinu CI, Marin AH, Matei I, Parvulescu V. Cu(II) and Mn(II) Anchored on Functionalized Mesoporous Silica with Schiff Bases: Effects of Supports and Metal-Ligand Interactions on Catalytic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1884. [PMID: 37368314 DOI: 10.3390/nano13121884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023]
Abstract
New series of Cu(II) and Mn(II) complexes with Schiff base ligands derived from 2-furylmethylketone (Met), 2-furaldehyde (Fur), and 2-hydroxyacetopheneone (Hyd) have been synthesized in situ on SBA-15-NH2, MCM-48-NH2, and MCM-41-NH2 functionalized supports. The hybrid materials were characterized by X-ray diffraction, nitrogen adsorption-desorption, SEM and TEM microscopy, TG analysis, and AAS, FTIR, EPR, and XPS spectroscopies. Catalytic performances were tested in oxidation with the hydrogen peroxide of cyclohexene and of different aromatic and aliphatic alcohols (benzyl alcohol, 2-methylpropan-1-ol, and 1-buten-3-ol). The catalytic activity was correlated with the type of mesoporous silica support, ligand, and metal-ligand interactions. The best catalytic activity of all tested hybrid materials was obtained in the oxidation of cyclohexene on SBA-15-NH2-MetMn as a heterogeneous catalyst. No leaching was evidenced for Cu and Mn complexes, and the Cu catalysts were more stable due to a more covalent interaction of the metallic ions with the immobilized ligands.
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Affiliation(s)
- Mihaela Mureseanu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Mihaela Filip
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Irina Bleotu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Cezar Ionut Spinu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Alexandru Horia Marin
- Ken and Mary Alice Lindquist Department of Nuclear Engineering, Penn State University, University Park, State College, PA 16802, USA
- Surface Analysis Laboratory, Institute for Nuclear Research Pitesti, 115400 Mioveni, Romania
| | - Iulia Matei
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Viorica Parvulescu
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
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28
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Nguyen HM, Morgan HWT, Chantarojsiri T, Kerr TA, Yang JY, Alexandrova AN, Léonard NG. Charge and Solvent Effects on the Redox Behavior of Vanadyl Salen-Crown Complexes. J Phys Chem A 2023. [PMID: 37316977 DOI: 10.1021/acs.jpca.3c00827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The incorporation of charged groups proximal to a redox active transition metal center can impact the local electric field, altering redox behavior and enhancing catalysis. Vanadyl salen (salen = N,N'-ethylenebis(salicylideneaminato)) complexes functionalized with a crown ether containing a nonredox active metal cation (V-Na, V-K, V-Ba, V-La, V-Ce, and V-Nd) were synthesized. The electrochemical behavior of this series of complexes was investigated by cyclic voltammetry in solvents with varying polarity and dielectric constant (ε) (acetonitrile, ε = 37.5; N,N-dimethylformamide, ε = 36.7; and dichloromethane, ε = 8.93). The vanadium(V/IV) reduction potential shifted anodically with increasing cation charge compared to a complex lacking a proximal cation (ΔE1/2 > 900 mV in acetonitrile and >700 mV in dichloromethane). In contrast, the reduction potential for all vanadyl salen-crown complexes measured in N,N-dimethylformamide was insensitive to the magnitude of the cationic charge, regardless of the electrolyte or counteranion used. Titration studies of N,N-dimethylformamide into acetonitrile resulted in cathodic shifting of the vanadium(V/IV) reduction potential with increasing concentration of N,N-dimethylformamide. Binding constants of N,N-dimethylformamide (log(KDMF)) for the series of crown complexes show increased binding affinity in the order of V-La > V-Ba > V-K > (salen)V(O), indicating an enhancement of Lewis acid/base interaction with increasing cationic charge. The redox behavior of (salen)V(O) and (salen-OMe)V(O) (salen-OMe = N,N'-ethylenebis(3-methoxysalicylideneamine) was also investigated and compared to the crown-containing complexes. For (salen-OMe)V(O), a weak association of triflate salt at the vanadium(IV) oxidation state was observed through cyclic voltammetry titration experiments, and cation dissociation upon oxidation to vanadium(V) was identified. These studies demonstrate the noninnocent role of solvent coordination and cation/anion effects on redox behavior and, by extension, the local electric field.
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Affiliation(s)
- Hien M Nguyen
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Harry W T Morgan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Teera Chantarojsiri
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Tyler A Kerr
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Jenny Y Yang
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Anastassia N Alexandrova
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Nadia G Léonard
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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29
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Sonawane HR, Vibhute BT, Aghav BD, Deore JV, Patil SK. Versatile applications of transition metal incorporating quinoline Schiff base metal complexes: An overview. Eur J Med Chem 2023; 258:115549. [PMID: 37321110 DOI: 10.1016/j.ejmech.2023.115549] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023]
Abstract
Since the last decade, research on quinoline Schiff base metal complexes has risen substantially due to their versatile applications across many significant fields. Schiff bases are also known as azomethines, aldimines, and imines. Quinoline Schiff base-derived metal complexes are intriguing to study topics. These complexes are employed in biological, analytical, and catalytic fields. Researchers have found that Schiff bases are more biologically active when coordinated with metal ions. Research in the biological sciences has shown that heterocyclic compounds like quinoline and its derivatives are important. Because of their broad spectrum of activity, quinoline derivatives have been discovered to be effective therapeutic agents for various disorders. Even though various classical synthetic pathways mentioned in the literature are still in use, there is an urgent need for a new, more effective method that is safer for the environment, has a higher yield, generates less hazardous waste, and is easier to use. This highlights the critical need for a safe, eco-friendly approach to quinoline scaffold synthesis. This review focuses exclusively on Schiff base metal complexes derived from quinoline, fabricated and studied in the past ten years, and having anticancer, antibacterial, antifungal, antioxidant, antidiabetic, antiproliferative, DNA-intercalation, and cytotoxic activities.
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Affiliation(s)
- Harshad R Sonawane
- Department of Chemistry, Changu Kana Thakur A.C.S. College, New panvel(Autonomous), New Panvel, 410206, University of Mumbai, Maharashtra, India; Department of Chemistry, G. M. Vedak College of Science, Tala-Raigad, 402111, Maharashtra, India.
| | - Baliram T Vibhute
- Department of Chemistry Doshi Vakil Arts and G.C.U.B. Science and Commerce College, Goregaon, Raigad, 402103, Maharashtra, India
| | - Balasaheb D Aghav
- Department of Chemistry, Changu Kana Thakur A.C.S. College, New panvel(Autonomous), New Panvel, 410206, University of Mumbai, Maharashtra, India
| | - Jaydeep V Deore
- Department of Chemistry, G. M. Vedak College of Science, Tala-Raigad, 402111, Maharashtra, India
| | - Sanjay K Patil
- Department of Chemistry, Changu Kana Thakur A.C.S. College, New panvel(Autonomous), New Panvel, 410206, University of Mumbai, Maharashtra, India.
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30
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Li Q, Yang J, Yu W, He L, Zhou R, Nie C, Liao L, Xiao X. Two Fe(III)/Eu(III) Salophen complex-based optical sensors for determination of organophosphorus pesticide monocrotophos. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:2334-2342. [PMID: 37140268 DOI: 10.1039/d3ay00255a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Monocrotophos (MP), an organophosphorus pesticide, poses a serious threat to human health, so a rapid and simple technique is needed to detect it. In this study, two novel optical sensors for MP detection were created using the Fe(III) Salophen complex and Eu(III) Salophen complex, respectively. One sensor is an Fe(III) Salophen complex (I-N-Sal), which can bind MP selectively and form a supramolecule, resulting in a strong resonance light scattering (RLS) signal at 300 nm. Under the optimum conditions, the detection limit was 30 nM, the linear range was 0.1-1.1 μM, the correlation coefficient R2 = 0.9919, and the recovery rate range was 97.0-103.1%. Interaction properties between the sensor I-N-Sal and MP and the RLS mechanism were investigated using density functional theory (DFT). And another sensor is based on the Eu(III) Salophen complex and 5-aminofluorescein derivatives. The Eu(III) Salophen complex was immobilized on the surface of amino-silica gel (Sigel-NH2) particles as the solid phase receptor (ESS) of MP and 5-aminofluorescein derivatives as the fluorescent (FL)-labeled receptor (N-5-AF) of MP, which can selectively bind the MP and form a sandwich-type supramolecule. Under the optimum conditions, the detection limit was 0.4 μM, the linear range was 1.3-7.0 μM, the correlation coefficient R2 = 0.9983, and the recovery rate range was 96.6-101.1%. Interaction properties between the sensor and MP were investigated by UV-vis, FT-IR, and XRD. Both sensors were successfully applied to the determination of MP content in tap water and camellia.
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Affiliation(s)
- Qian Li
- School of Chemistry and Chemical Engineering, Hunan Province Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, P. R. China
| | - Jing Yang
- Hengyang Market Supervision, Inspection and Testing Center, Hengyang City 421001, P. R. China
| | - Wenzhan Yu
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001, P. R. China
| | - Liqiong He
- Department of Public Health and Laboratory Science, School of Public Health, University of South China, Hengyang 421001, P. R. China
| | - Renlong Zhou
- Department of Public Health and Laboratory Science, School of Public Health, University of South China, Hengyang 421001, P. R. China
| | - Changming Nie
- School of Chemistry and Chemical Engineering, Hunan Province Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, P. R. China
| | - Lifu Liao
- School of Chemistry and Chemical Engineering, Hunan Province Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, P. R. China
| | - Xilin Xiao
- School of Chemistry and Chemical Engineering, Hunan Province Key Laboratory for the Design and Application of Actinide Complexes, University of South China, Hengyang 421001, P. R. China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, China.
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31
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Beč A, Cindrić M, Persoons L, Banjanac M, Radovanović V, Daelemans D, Hranjec M. Novel Biologically Active N-Substituted Benzimidazole Derived Schiff Bases: Design, Synthesis, and Biological Evaluation. Molecules 2023; 28:molecules28093720. [PMID: 37175129 PMCID: PMC10180076 DOI: 10.3390/molecules28093720] [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: 03/03/2023] [Revised: 04/19/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Herein, we present the design and synthesis of novel N-substituted benzimidazole-derived Schiff bases, and the evaluation of their antiviral, antibacterial, and antiproliferative activity. The impact on the biological activity of substituents placed at the N atom of the benzimidazole nuclei and the type of substituents attached at the phenyl ring were examined. All of the synthesized Schiff bases were evaluated in vitro for their antiviral activity against different viruses, antibacterial activity against a panel of bacterial strains, and antiproliferative activity on several human cancer cell lines, thus enabling the study of the structure-activity relationships. Some mild antiviral effects were noted, although at higher concentrations in comparison with the included reference drugs. Additionally, some derivatives showed a moderate antibacterial activity, with precursor 23 being broadly active against most of the tested bacterial strains. Lastly, Schiff base 40, a 4-N,N-diethylamino-2-hydroxy-substituted derivative bearing a phenyl ring at the N atom on the benzimidazole nuclei, displayed a strong antiproliferative activity against several cancer cell lines (IC50 1.1-4.4 μM). The strongest antitumoral effect was observed towards acute myeloid leukemia (HL-60).
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Affiliation(s)
- Anja Beč
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, HR-10000 Zagreb, Croatia
| | - Maja Cindrić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, HR-10000 Zagreb, Croatia
| | - Leentje Persoons
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, 3000 Leuven, Belgium
| | - Mihailo Banjanac
- Pharmacology In Vitro, Selvita Ltd., Prilaz baruna Filipovića 29, HR-10000 Zagreb, Croatia
| | - Vedrana Radovanović
- Pharmacology In Vitro, Selvita Ltd., Prilaz baruna Filipovića 29, HR-10000 Zagreb, Croatia
| | - Dirk Daelemans
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, 3000 Leuven, Belgium
| | - Marijana Hranjec
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, HR-10000 Zagreb, Croatia
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Kobayashi M, Akitsu T, Furuya M, Sekiguchi T, Shoji S, Tanii T, Tanaka D. Efficient Synthesis of a Schiff Base Copper(II) Complex Using a Microfluidic Device. MICROMACHINES 2023; 14:890. [PMID: 37421123 DOI: 10.3390/mi14040890] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 07/09/2023]
Abstract
The efficient synthesis of amino acid Schiff base copper(II) complexes using a microfluidic device was successfully achieved. Schiff bases and their complexes are remarkable compounds due to their high biological activity and catalytic function. Conventionally, products are synthesized under reaction conditions of 40 °C for 4 h using a beaker-based method. However, in this paper, we propose using a microfluidic channel to enable quasi-instantaneous synthesis at room temperature (23 °C). The products were characterized using UV-Vis, FT-IR, and MS spectroscopy. The efficient generation of compounds using microfluidic channels has the potential to significantly contribute to the efficiency of drug discovery and material development due to high reactivity.
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Affiliation(s)
- Masashi Kobayashi
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Takashiro Akitsu
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Masahiro Furuya
- Cooperative Major in Nuclear Energy, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Tetsushi Sekiguchi
- Research Organization for Nano & Life Innovation, Waseda University, 513 Tsurumakicho, Shinjuku-ku, Tokyo 162-0041, Japan
| | - Shuichi Shoji
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Takashi Tanii
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Daiki Tanaka
- Research Organization for Nano & Life Innovation, Waseda University, 513 Tsurumakicho, Shinjuku-ku, Tokyo 162-0041, Japan
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Versatile functionalization of pectic conjugate: From design to biomedical applications. Carbohydr Polym 2023; 306:120605. [PMID: 36746571 DOI: 10.1016/j.carbpol.2023.120605] [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: 11/07/2022] [Revised: 12/26/2022] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
Pectin exists extensively in nature and has attracted much attention in biological applications for its unique chemical and physical characteristics. Functionalized pectin, especially pectic conjugates, has given many possibilities for pectin to improve its properties and bioactivity as well as to deliver active molecules. To better exploit this strategy of pectic functionalization, this review presents in detail the structural modifications of pectin, different synthetic methods, and design strategies of pectic conjugates involving both traditional chemical and "green" approaches. Here, the research ideas and applications of pectic prodrugs as well as the development of preparation based on pectic conjugates are reviewed, with emphasis on crosslinking systems of functionalized pectin and nanosystems based on self-assembly techniques. We hope this review will provide comprehensive and valuable information for the functionalization and systematization of the pectic conjugate from synthesis to application.
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Mandal UC, Chatterjee A, Chattopadhyay T, Mukherjee A, Ghosh R. Synthesis and structural characterization of unsymmetrical Schiff base 2-(1-(2-aminophenylimino)ethyl)phenol (LH3) and its Pd(II) complex [Pd3(LH)3]: catalysis of Suzuki–Miyaura cross-coupling reaction. J CHEM SCI 2023. [DOI: 10.1007/s12039-023-02142-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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35
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Li J, Guo L, Huo H, Wang Y, Gao Y, Li F, Li C. Preparation of nickel catalysts bearing Schiff base macrocycles and their performance in ethylene oligomerization. TRANSIT METAL CHEM 2023. [DOI: 10.1007/s11243-023-00527-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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36
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Abd El-Lateef HM, Abd El-Monem Nasr WM, Khalaf MM, Mohamed AE, Rashed MN, Adam MS. Anticorrosion Evaluation of Novel Water-Soluble Schiff Base Molecules for C1018 Steel in CO 2-Saturated Brine by Computational and Experimental Methodologies. ACS OMEGA 2023; 8:11512-11535. [PMID: 37008130 PMCID: PMC10061679 DOI: 10.1021/acsomega.3c00561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/03/2023] [Indexed: 06/19/2023]
Abstract
In this work, three different derivatives of Schiff base, as mono- and di-Schiff bases, were successfully synthesized by the facile condensation of 2-aminopyridine, o-phenylenediamine, or 4-chloro-o-phenylenediamine with sodium salicylaldehyde-5-sulfonate (H1, H2, and H3, respectively). A combination of theoretical and practical studies was accomplished on the corrosion mitigation effect of the prepared Schiff base derivatives on C1018 steel in CO2-saturated 3.5% NaCl solution. The corrosion inhibition effect of the synthesized Schiff base molecules was studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) methods. The outcomes exhibited that Schiff base derivatives have an outstanding corrosion inhibition effect on carbon steel at particularly low concentrations in sweet conditions. The outcomes showed that Schiff base derivatives exhibited a satisfactory inhibition efficiency of 96.5% (H1), 97.7% (H2), and 98.1% (H3) with a dosage of 0.5 mM at 323 K. SEM/EDX analysis confirms the adsorbed inhibitor film's formation on the metal surface. The polarization plots indicate that the studied compounds behaved as inhibitors of the mixed type according to the isotherm model of Langmuir. The computational inspections (MD simulations and DFT calculations) display a good correlation with the investigational findings. The outcomes could be applied to assess the efficiency of the inhibiting agents in the gas and oil industry.
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Affiliation(s)
- Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | | | - Mai M. Khalaf
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Adila E. Mohamed
- Chemistry
Department, Faculty of Science, Aswan University, Aswan 81528, Egypt
| | | | - Mohamed Shaker
S. Adam
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Chemistry
Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
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Kumar G, Srivastava A, Singh VP. Graphene oxide-supported nickel(II) complex as a reusable nano catalyst for the synthesis of bis(indolyl)methanes. Dalton Trans 2023; 52:3431-3437. [PMID: 36825768 DOI: 10.1039/d2dt04176f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
A novel catalytic system of a nickel(II) complex of (E)-N'-((2-amino-5-chlorophenyl)(phenyl)methylene)-2-hydroxy-benzohydrazide (APH) supported on graphene oxide (GO) has been prepared. Detailed characterization of the synthesized catalyst has been carried out using NMR, FTIR, HRMS, PXRD, Raman, SEM, TEM, EDX and XPS. Its catalytic efficiency has been explored for the synthesis of various bis(indolyl)methane derivatives. The optimized reaction conditions prove that the catalyst is highly efficient, performs under mild conditions and is required in a very small amount (2 wt%). A diversified library of bis(indolyl)methane derivatives containing various electron donating and withdrawing substituents has been developed in high to excellent yields. The catalyst is equally efficient towards heterocyclic aldehydes. Moreover, owing to the strong covalent interaction between the APH-Ni(II) complex and GO, the catalyst shows outstanding recyclability for six subsequent cycles without any significant loss in activity.
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Affiliation(s)
- Gautam Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Ananya Srivastava
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Vinod P Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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Waziri I, Yusuf TL, Zarma HA, Oselusi SO, Coetzee LCC, Adeyinka AS. New Palladium (II) Complexes from Halogen Substituted Schiff Base Ligands: Synthesis, Spectroscopic, Biological Activity, Density functional theory, and Molecular Docking Investigations. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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39
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Dong Y, Li M, Hao Y, Feng Y, Ren Y, Ma H. Antifungal Activity, Structure-Activity Relationship and Molecular Docking Studies of 1,2,4-Triazole Schiff Base Derivatives. Chem Biodivers 2023; 20:e202201107. [PMID: 36808871 DOI: 10.1002/cbdv.202201107] [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: 11/21/2022] [Revised: 02/11/2023] [Accepted: 02/16/2023] [Indexed: 02/21/2023]
Abstract
Fourteen novel Schiff base compounds (AS-1∼AS-14) containing 5-amino-1H-1,2,4-triazole-3-carboxylic acid and substituted benzaldehyde were successfully synthesized, and their structures were verified by melting point, elemental analysis (EA) and spectroscopic techniques (Fourier Transform Infra-Red (FT-IR) and Nuclear Magnetic Resonance (NMR)). In vitro hyphal measurements were used to investigate the antifungal activities of the synthesised compounds against Wheat gibberellic, Maize rough dwarf and Glomerella cingulate. The preliminary studies indicated that all compounds had good inhibitory effect on Wheat gibberellic and Maize rough dwarf, among which the compounds of AS-1 (7.44 mg/L, 7.27 mg/L), AS-4 (6.80 mg/L, 9.57 mg/L) and AS-14 (5.33 mg/L, 6.53 mg/L) showed better antifungal activity than that of the standard drug fluconazole (7.66 mg/L, 6.72 mg/L); while inhibitory effect against Glomerella cingulate was poor, only AS-14 (5.67 mg/L) was superior to that of fluconazole (6.27 mg/L). The research of structure-activity relationship exhibited that the introduction of halogen elements on the benzene ring and electron withdrawing groups at the 2,4,5 positions on the benzene ring was beneficial to the improvement of the activity against Wheat gibberellic, while the large steric hindrance was not conducive to the improvement of the activity. Additionally, except for AS-1, AS-3 and AS-10, the other compounds had one or several ratio systems to achieve synergistic effect after recombination with pyrimethamine, among which AS-7 had significant synergistic effect and was expected to be a combinated agent with application prospects. Finally, the molecular docking results of isocitrate lyase with Wheat gibberellic displayed that the presence of hydrogen bonds enabled stable binding of compounds to receptor proteins, and the residues of ARG A: 252, ASN A: 432, CYS A: 215, SER A: 436 and SER A: 434 were the key residues for their binding. Comparing the docking binding energy and biological activity results, it was revealed that the lower the docking binding energy was, the stronger the inhibitory ability of the Wheat gibberellic, when the same position on the benzene ring was substituted.
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Affiliation(s)
- Yangming Dong
- Department of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an, 710069, P. R. China
| | - Moucui Li
- Department of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an, 710069, P. R. China
| | - Yun Hao
- Department of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an, 710069, P. R. China
| | - Yunrui Feng
- Department of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an, 710069, P. R. China
| | - Yinghui Ren
- Department of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an, 710069, P. R. China
| | - Haixia Ma
- Department of Chemical Engineering, Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an, 710069, P. R. China
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40
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Adam MSS, Elsawy H, Sedky A, Makhlouf MM, Taha A. Catalytic potential of sustainable dinuclear (Cu2+ and ZrO2+) metal organic incorporated frameworks with comprehensive biological studies. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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41
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Manganese(III) complexes with tetradentate O^C^C^O ligands: Synthesis, characterization and catalytic studies on the CO2 cycloaddition with epoxides. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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42
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Jayasinghe-Arachchige VM, Serafim LF, Hu Q, Ozen C, Moorkkannur SN, Schenk G, Prabhakar R. Elucidating the Roles of Distinct Chemical Factors in the Hydrolytic Activities of Hetero- and Homonuclear Synthetic Analogues of Binuclear Metalloenzymes. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
| | - Leonardo F. Serafim
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Qiaoyu Hu
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Cihan Ozen
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Sreerag N. Moorkkannur
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Gerhard Schenk
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Rajeev Prabhakar
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
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43
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Lee J, Melchakova I, Nayab S, Kim K, Ko YH, Yoon M, Avramov P, Lee H. Synthesis and Characterization of Zinc(II), Cadmium(II), and Palladium(II) Complexes with the Thiophene-Derived Schiff Base Ligand. ACS OMEGA 2023; 8:6016-6029. [PMID: 36816644 PMCID: PMC9933481 DOI: 10.1021/acsomega.2c08001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/23/2023] [Indexed: 06/01/2023]
Abstract
Zn(II), Pd(II), and Cd(II) complexes, [L TH MCl 2 ] (M = Zn, Pd; X = Br, Cl) and [L TH Cd(μ-X)X] n (X = Cl, Br; n = n, 2), supported by the (E)-N 1,N 1-dimethyl-N 2-(thiophen-2-ylmethylene)ethane-1,2-diamine (L TH ) ligand are synthesized and structurally characterized. Density functional theory (DFT) electronic structure calculations and variable-temperature NMR support the presence of two conformers and a dynamic interconversion process of the minor conformer to the major one in solution. It is found that the existence of two relevant complex conformers and their respective ratios in solution depend on the central metal ions and counter ions, either Cl- or Br-. Among the two relevant conformers, a single conformer is crystallized and X-ray diffraction analysis revealed a distorted tetrahedral geometry for Zn(II) complexes, and a distorted square planar and square pyramidal geometry for Pd(II) and Cd(II) complexes, respectively. It is shown that [L TH MCl 2 ]/LiO i Pr (M = Zn, Pd) and [L TH Cd(μ-Cl)Cl] n /LiO i Pr can effectively catalyze the ring-opening polymerization (ROP) reaction of rac-lactide (rac-LA) with 94% conversion within 30 s with [L TH ZnCl 2 ]/LiO i Pr at 0 °C. Overall, hetero-enriched poly(lactic acid)s (PLAs) were provided by these catalytic systems with [L TH ZnCl 2 ]/LiO i Pr producing PLA with higher heterotactic bias (P r up to 0.74 at 0 °C).
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Affiliation(s)
- Jaegyeong Lee
- Department
of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Iuliia Melchakova
- Department
of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Saira Nayab
- Department
of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
- Department
of Chemistry, Shaheed Benazir Bhutto University
(SBBU), Sheringal 18050, Upper Dir, Khyber Pakhtunkhwa, Islamic Republic of Pakistan
| | - Kyeonghun Kim
- Department
of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Young Ho Ko
- Center
for Self-Assembly and Complexity (CSC), Institute for Basic Science
(IBS), Pohang University of Science and
Technology (POSTEC), Pohang 37673, Republic
of Korea
| | - Minyoung Yoon
- Department
of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Paul Avramov
- Department
of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
| | - Hyosun Lee
- Department
of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea
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Šorm D, Bashta B, Blahut J, Císařová I, Dolejšová Sekerová L, Vyskočilová E, Sedláček J. Porous polymer networks cross-linked by novel copper Schiff base complex: From synthesis to catalytic activity. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2022.111772] [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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45
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Synthesis, FTIR, NMR, UV–vis and electrochemistry analysis of ferrocenyl Schiff bases. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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46
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Su RR, Ganta PK, Cheng CA, Hu YT, Chang YC, Chang CJ, Ding S, Chen HY, Wu KH. Ring-opening polymerization of ε-caprolactone and L-lactide using ethyl salicylate-bearing zinc complexes as catalysts. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.112965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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47
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Zhao X, Li J, Jian H, Lu M, Wang M. Two Novel Schiff Base Manganese Complexes as Bifunctional Electrocatalysts for CO 2 Reduction and Water Oxidation. Molecules 2023; 28:1074. [PMID: 36770742 PMCID: PMC9920694 DOI: 10.3390/molecules28031074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
One mononuclear Mn(III) complex [MnIIIL(H2O)(MeCN)](ClO4) (1) and one hetero-binuclear complex [(CuIILMnII(H2O)3)(CuIIL)2](ClO4)2·CH3OH (2) have been synthesized with the Schiff base ligand (H2L = N,N'-bis(3-methoxysalicylidene)-1,2-phenylenediamine). Single crystal X-ray structural analysis manifests that the Mn(III) ion in 1 has an octahedral coordination structure, whereas the Mn(II) ion in 2 possesses a trigonal bipyramidal configuration and the Cu(II) ion in 2 is four-coordinated with a square-planar geometry. Electrochimerical catalytic investigation demonstrates that the two complexes can electrochemically catalyze water oxidation and CO2 reduction simultaneously. The coordination environments of the Mn(III), Mn(II), and Cu(II) ions in 1 and 2 were provided by the Schiff base ligand (L) and labile solvent molecules. The coordinately unsaturated environment of the Cu(II) center in 2 can perfectly facilitate the catalytic performance of 2. Complexes 1 and 2 display that the over potentials for water oxidation are 728 mV and 216 mV, faradaic efficiencies (FEs) are 88% and 92%, respectively, as well as the turnover frequency (TOF) values for the catalytic reduction of CO2 to CO are 0.38 s-1 at -1.65 V and 15.97 s-1 at -1.60 V, respectively. Complex 2 shows much better catalytic performance for both water oxidation and CO2 reduction than that of complex 1, which could be owing to a structural reason which is attributed to the synergistic catalytic action of the neighboring Mn(III) and Cu(II) active sites in 2. Complexes 1 and 2 are the first two compounds coordinated with Schiff base ligand for both water oxidation and CO2 reduction. The finding in this work can offer significant inspiration for the future development of electrocatalysis in this area.
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Affiliation(s)
- Xin Zhao
- School of Materials Science and Engineering, Institute for New Energy Materials & Low Carbon Technologies, Tianjin University of Technology, Tianjin 300384, China
| | - Jingjing Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
| | - Hengxin Jian
- School of Materials Science and Engineering, Institute for New Energy Materials & Low Carbon Technologies, Tianjin University of Technology, Tianjin 300384, China
| | - Mengyu Lu
- School of Materials Science and Engineering, Institute for New Energy Materials & Low Carbon Technologies, Tianjin University of Technology, Tianjin 300384, China
| | - Mei Wang
- School of Materials Science and Engineering, Institute for New Energy Materials & Low Carbon Technologies, Tianjin University of Technology, Tianjin 300384, China
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48
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Schiff Bases: A Versatile Fluorescence Probe in Sensing Cations. J Fluoresc 2023; 33:859-893. [PMID: 36633727 DOI: 10.1007/s10895-022-03135-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/24/2022] [Indexed: 01/13/2023]
Abstract
Metal cations such as Zn2+, Al3+, Hg2+, Cd2+, Sn2+, Fe2+, Fe3+ and Cu2+ play important roles in biology, medicine, and the environment. However, when these are not maintained in proper concentration, they can be lethal to life. Therefore, selective sensing of metal cations is of great importance in understanding various metabolic processes, disease diagnosis, checking the purity of environmental samples, and detecting toxic analytes. Schiff base probes have been largely used in designing fluorescent sensors for sensing metal ions because of their easy processing, availability, fast response time, and low detection limit. Herein, an in-depth report on metal ions recognition by some Schiff base fluorescent sensors, their sensing mechanism, their practical applicability in cell imaging, building logic gates, and analysis of real-life samples has been presented. The metal ions having biological, industrial, and environmental significance are targeted. The compiled information is expected to prove beneficial in designing and synthesis of the related Schiff base fluorescent sensors.
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49
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Tada K, Ikegaki C, Fuse Y, Tateishi K, Sogawa H, Sanda F. Optically active polyaromatic Schiff base adopting stable secondary structures. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Schiff Bases and Their Metal Complexes: A review on the history, synthesis, and applications. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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