1
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Sk S, Bandyopadhyay S, Sarkar C, Das I, Gupta A, Sadangi M, Mondal S, Banerjee M, Vijaykumar G, Behera JN, Konar S, Mandal S, Bera M. Unraveling Multicopper [Cu 3] and [Cu 6] Clusters with Rare μ 3-Sulfato and Linear μ 2-Oxido-Bridges as Potent Antibiofilm Agents against Multidrug-Resistant Staphylococcus aureus. ACS APPLIED BIO MATERIALS 2024; 7:2423-2449. [PMID: 38478915 DOI: 10.1021/acsabm.4c00075] [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] [Indexed: 04/16/2024]
Abstract
In this research article, two multicopper [Cu3] and [Cu6] clusters, [Cu3(cpdp)(μ3-SO4)(Cl)(H2O)2]·3H2O (1) and [Cu6(cpdp)2(μ2-O)(Cl)2(H2O)4]·2Cl (2) (H3cpdp = N,N'-bis[2-carboxybenzomethyl]-N,N'-bis[2-pyridylmethyl]-1,3-diaminopropan-2-ol), have been explored as potent antibacterial and antibiofilm agents. Their molecular structures have been determined by a single-crystal X-ray diffraction study, and the compositions have been established by thermal and elemental analyses, including electrospray ionization mass spectrometry. Structural analysis shows that the metallic core of 1 is composed of a trinuclear [Cu3] assembly encapsulating a μ3-SO42- group, whereas the structure of 2 represents a hexanuclear [Cu6] assembly in which two trinuclear [Cu3] motifs are exclusively bridged by a linear μ2-O2- group. The most striking feature of the structure of 2 is the occurrence of an unusual linear oxido-bridge, with the Cu3-O6-Cu3' bridging angle being 180.00°. Whereas 1 can be viewed as an example of a copper(II)-based compound displaying a rare μ3:η1:η1:η1 bridging mode of the SO42- group, 2 is the first example of any copper(II)-based compound showing an unsupported linear Cu-O-Cu oxido-bridge. Employing variable-temperature SQUID magnetometry, the magnetic susceptibility data were measured and analyzed exemplarily for 1 in the temperature range of 2-300 K, revealing the occurrence of antiferromagnetic interactions among the paramagnetic copper centers. Both 1 and 2 exhibited potent antibacterial and antibiofilm activities against methicillin-resistant Staphylococcus aureus (MRSA BAA1717) and the clinically isolated culture of methicillin-resistant S. aureus (MRSA CI1). The mechanism of antibacterial and antibiofilm activities of these multicopper clusters was investigated by analyzing and determining the intracellular reactive oxygen species (ROS) generation, lipid peroxidation, microscopic observation of cell membrane disruption, membrane potential, and leakage of cellular components. Additionally, 1 and 2 showed a synergistic effect with commercially available antibiotics such as vancomycin with enhanced antibacterial activity. However, 1 possesses higher antibacterial, antibiofilm, and antivirulence actions, making it a potent therapeutic agent against both MRSA BAA1717 and MRSA CI1 strains.
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Affiliation(s)
- Sujan Sk
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Shrabasti Bandyopadhyay
- Department of Microbiology, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Chandan Sarkar
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Indrajit Das
- Department of Microbiology, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Arindam Gupta
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Madhya Pradesh 462066, India
| | - Manisha Sadangi
- School of Chemical Sciences, National Institute of Science Education & Research, An OCC of Homi Bhabha National Institute, Khurda, Bhubaneswar, Odisha 752050, India
| | - Soma Mondal
- Department of Microbiology, College of Medicine & Jawaharlal Nehru Memorial (JNM) Hospital, WBUHS, Nadia, Kalyani, West Bengal 741235, India
| | - Malabika Banerjee
- Cristália Produtos Químicos Farmacêuticos Limited, Rodovia Itapira, Sao Paulo CEP 13970-970, Brazil
| | - Gonela Vijaykumar
- Catalysis and Fine Chemicals Department, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - J N Behera
- School of Chemical Sciences, National Institute of Science Education & Research, An OCC of Homi Bhabha National Institute, Khurda, Bhubaneswar, Odisha 752050, India
| | - Sanjit Konar
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Madhya Pradesh 462066, India
| | - Supratim Mandal
- Department of Microbiology, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Manindranath Bera
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
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2
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Sen B, Paul S, Krukowski P, Kundu D, Das S, Banerjee P, Mal Ecka M, Abbas SJ, Ali SI. CuAs 2O 4: Design, Hydrothermal Synthesis, Crystal Structure, Photocatalytic Dye Degradation, Hydrogen Evolution Reaction, Knoevenagel Condensation Reaction, and Thermal Studies. Inorg Chem 2024; 63:2919-2933. [PMID: 38297514 DOI: 10.1021/acs.inorgchem.3c03225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
CuAs2O4 has been explored as a heterogeneous catalyst in the fields of photocatalysis, electrocatalysis, and solvent-free organic transformation reactions. The homogeneity has been successfully attained for the first time by designing a pH-assisted hydrothermal synthesis technique. Single-crystal X-ray diffraction studies reveal that no phase transition has been observed by lowering the temperature up to 103 K with no existence of satellite reflections. The crystal structure exhibits tetragonal symmetry with space group P42/mbc and consists of [CuO6] octahedra and [AsO3E] tetrahedra (E represents the stereochemically active lone pair). Structural investigation shows a cylindrical void inside the structure, which could lead to interesting physical and chemical properties. The photocatalytic dye degradation efficiency with methylene blue (MB) showed ∼100% degradation, though the degradation efficiency increased by 2-fold with the addition of 6% H2O2. The reusability of the catalyst up to the 10th cycle with ∼35% MB dye degradation has been established. It can exhibit HER activity with a low overpotential of 165 mV with respect to RHE to attain the current density of j = 10 mA cm-2. SEM and TEM revealed rod-shaped particles, which supported the large number of catalytic active sites. The structural consistency of the catalyst after photodegradation and HER studies is confirmed by the PXRD pattern. XPS confirms the oxidation state of Cu and As in the compound. The catalytic activity toward the Knoevenagel condensation reaction at moderate temperature under solvent-free condition is also studied. TG-DTA shows an endothermic minimum (Tmin) at 436 °C due to the mass loss of As2O3.
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Affiliation(s)
- Bibaswan Sen
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Sayantani Paul
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Pawel Krukowski
- Department of Solid State Physics, University of Lodz, Lodz 90-236, Poland
| | - Debojyoti Kundu
- CSIR- Central Mechanical Engineering Research Institute (CMERI), Durgapur, West Bengal 713209, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sangita Das
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
| | - Priyabrata Banerjee
- CSIR- Central Mechanical Engineering Research Institute (CMERI), Durgapur, West Bengal 713209, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Magdalena Mal Ecka
- Department of Physical Chemistry, University of Lodz, Lodz 90-236, Poland
| | - Sk Jahir Abbas
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan
| | - Sk Imran Ali
- Department of Chemistry, University of Kalyani, Nadia, Kalyani, West Bengal 741235, India
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3
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Sarkar C, Sk S, Majumder A, Haldar S, Vijaykumar G, Bera M. Synthesis, structure, thermal and magnetic properties of new tetranuclear copper(II) complex supported by multidentate ligand and glutarate functionality. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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4
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Majumder A, Sk S, Das A, Vijaykumar G, Sahoo MK, Behera JN, Bera M. Ancillary-Ligand-Assisted Variation in Nuclearities Leading to the Formation of Di-, Tri-, and Tetranuclear Copper(II) Complexes with Multifaceted Carboxylate Coordination Chemistry. ACS OMEGA 2022; 7:39985-39997. [PMID: 36385820 PMCID: PMC9647862 DOI: 10.1021/acsomega.2c04627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The self-assembly of a carboxylate-based dinucleating ligand, N,N'-bis[2-carboxybenzomethyl]-N,N'-bis[2-pyridylmethyl]-1,3-diaminopropan-2-ol (H3cpdp), and copper(II) ions in the presence of various exogenous ancillary ligands results in the formation of the new dinuclear complex [Cu2(cpdp)(μ-Hisophth)]4·2H2isophth·21H2O (1), trinuclear complex [Cu3(Hcpdp)(Cl)4] (2), and tetranuclear complex [Cu4(cpdp)(μ-Hphth)(μ4-phth)(piconol)(Cl)2]·3H2O (3) (H2phth = phthalic acid; H2isophth = isophthalic acid; piconol = 2-pyridinemethanol; Cl- = chloride). In methanol-water, the reaction of H3cpdp with CuCl2·2H2O at room temperature leads to the formation of 2. On the other hand, 1 and 3 have been obtained by carrying out the reaction of H3cpdp with CuCl2·2H2O/m-C6H4(CO2Na)2 and CuCl2·2H2O/o-C6H4(CO2Na)2/piconol, respectively, in methanol-water in the presence of NaOH at ambient temperature. All three complexes have been characterized by elemental analysis, molar electrical conductivity and magnetic moment measurements, FTIR, UV-vis spectroscopy, and PXRD, including single-crystal X-ray structural analyses. The molecular structure of 1 is based on a μ-alkoxide and μ-isophthalate-bridged dimeric [Cu2] core; the structure of 2 represents a trimeric [Cu3] core in which a μ-alcohol-bridged dinuclear [Cu2] unit is exclusively coupled with a [CuCl2] species by two μ:η1:η1-syn-anti carboxylate groups forming a triangular motif; the structure of 3 embodies a tetrameric [Cu4] core, with two copper(II) ions in a distorted-octahedral coordination environment, one copper(II) ion in a distorted-trigonal-bipyramidal coordination environment, and the other copper(II) ion in a square-planar coordination environment. In fact, 2 and 3 represent rare examples of copper(II)-based multinuclear complexes showing outstanding features of rich coordination chemistry: (i) using a symmetrical dinucleating ligand, trinuclear complex 2 is generated with four- and five-coordination environments around copper(II) ions; (ii) the unsymmetrical tetranuclear complex 3 is obtained by using the same ligand with four-, five- and six-coordination environments around copper(II) ions; (iii) tetracopper(II) complex 3 shows four different bridging modes of carboxylate groups simultaneously such as μ:η2, μ:η1:η1, μ3:η2:η1:η1, and μ4:η1:η1:η1:η1, the μ4:η1:η1:η1:η1 mode of phthalate being unprecedented. The formation of these [Cu2], [Cu3], and [Cu4] complexes can be controlled by changing the exogenous ancillary ligands and pH of the reaction solutions, thus allowing an effective tuning of the self-assembly. The magnetic susceptibility measurements suggest that the copper centers in all three complexes are antiferromagnetically coupled. The thermal properties of 1-3 have been investigated by thermogravimetric and differential thermal analytical (TGA and DTA) techniques, indicating that the decomposition of all three complexes proceeds via multistep processes.
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Affiliation(s)
- Avishek Majumder
- Department
of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Sujan Sk
- Department
of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Arpan Das
- Department
of Chemical Sciences, Indian Institute of
Science Education & Research-Kolkata, Mohanpur, West Bengal 741246, India
| | - Gonela Vijaykumar
- Department
of Chemical Sciences, Indian Institute of
Science Education & Research-Kolkata, Mohanpur, West Bengal 741246, India
| | - Malaya K. Sahoo
- School
of Chemical Sciences, National Institute
of Science Education & Research, An OCC of Homi Bhabha National
Institute, Bhubaneswar, Khurda, Odisha 752050, India
| | - J. N. Behera
- School
of Chemical Sciences, National Institute
of Science Education & Research, An OCC of Homi Bhabha National
Institute, Bhubaneswar, Khurda, Odisha 752050, India
| | - Manindranath Bera
- Department
of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
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5
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Majumder A, Dutta N, Sk S, Bera M. Synthesis, characterization and arsenate binding events of new mononuclear copper(II) complexes. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Diallo AS, Thiam IE, Gueye-Ndiaye M, Dieng M, Orton J, Simon C, Gaye M. Tetranuclear copper(II) complex of 2-hydroxy- N, N′-bis[1-(2-hydroxyphenyl)ethylidene]propane-1,3-diamine. ACTA CRYSTALLOGRAPHICA SECTION E CRYSTALLOGRAPHIC COMMUNICATIONS 2022; 78:349-353. [PMID: 35492279 PMCID: PMC8983967 DOI: 10.1107/s2056989022002225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/24/2022] [Indexed: 11/25/2022]
Abstract
In the title Schiff base tetranuclear copper(II) complex, two discrete environments are present in the structure: CuNO4 and CuNO3. Two copper(II) cations are situated in distorted square-pyramidal environment, while two copper(II) cations are located in a slightly square-planar geometry. One bridging acetate group acting in an η1:η1-μ2-mode connects two copper(II) ions, while another bridging acetate group connects three copper(II) ions in an η1:-η2–μ3-mode. The title molecular structure, namely, (μ3-acetato)(μ2-acetato)bis(μ3-1,3-bis{[1-(2-oxidophenyl)ethylidene]amino}propan-2-olato)tetracopper(II) monohydrate, [Cu4(C19H19N2O3)2(CH3CO2)2]·H2O, corresponds to a non-symmetric tetranuclear copper complex. The complex exhibits one ligand molecule that connects two copper CuII metal centres via its ethanolato oxygen anion acting in a μ2-mode and one ligand molecule that connects three copper CuII metal centres via its ethanolato oxygen anion acting in a μ3-mode. One bridging acetate group acting in an η1:η1-μ2-mode connects two copper(II) ions while another bridging acetate group connects three copper(II) ions in an η1:-η2-μ3-mode. A chair-like Cu3O3 structure is generated in which the two CuO4N units are connected by one μ2-O ethanolate oxygen atom. These two units are connected respectively to the CuO3N unit via one μ3-O ethanolate oxygen atom and one μ2-O atom from an acetate group. The μ3-O atom also connects one of the CuO4N units and the CuO3N unit to another CuO3N unit, which is out of the chair-like structure. Each of the two pentacoordinated CuII cations has a distorted NO4 square-pyramidal environment. The geometry of each of the two CuNO3 units is best described as a slightly square-planar environment. A series of intramolecular O—H⋯O hydrogen bonds is observed. In the crystal, the units are connected by intermolecular C—H⋯O and O—H⋯O hydrogen bonds, thus forming sheets parallel to the ac plane
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7
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Majumder A, Dutta N, Dey S, Sow P, Samadder A, Vijaykumar G, Rangan K, Bera M. A Family of [Zn 6] Complexes from the Carboxylate-Bridge-Supported Assembly of [Zn 2] Building Units: Synthetic, Structural, Spectroscopic, and Systematic Biological Studies. Inorg Chem 2021; 60:17608-17626. [PMID: 34761905 DOI: 10.1021/acs.inorgchem.1c02201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The three discrete [Zn6] complexes [Na3Zn6(cpdp)3(μ-Bz)3(CH3OH)6][ZnCl4][ZnCl3(H2O)]·3CH3OH·1.5H2O (1), [Na3Zn6(cpdp)3(μ-p-OBz)3(CH3OH)6]·2H2O (2), and [Na3Zn6(cpdp)3(μ-p-NO2Bz)3(CH3OH)6]Cl3·2H2O (3), supported by the carboxylate-based multidentate ligand N,N'-bis[2-carboxybenzomethyl]-N,N'-bis[2-pyridylmethyl]-1,3-diaminopropan-2-ol (H3cpdp), have been successfully synthesized and fully characterized (Bz = benzoate; p-OBz = dianion of p-hydroxybenzoic acid; p-NO2Bz = p-nitrobenzoate). The complexes have been characterized by elemental analysis, FTIR, UV-vis, NMR spectroscopy, PXRD, and thermal analysis, including single-crystal X-ray crystallography of 1 and 2. The molecular architectures of 1-3 are built from the self-assembly of their corresponding [Zn2] units, which are interconnected to the central [Na3(CH3OH)6]3+ core by six endogenous benzoate groups, with each linking one Zn(II) and one Na(I) ion in a μ2:η1:η1-syn-anti bidentate fashion. The composition of the (cpdp3-)3/(Zn2+)6 complexes in 1-3 has been observed to be 1:2, on the basis of the UV-vis titration and NMR spectroscopic results, which is further supported by X-ray crystallography. Systematic biological studies performed with a mice model suggested possible antidiabetic efficacy as well as anticancer activities of the complexes. When complexes 1-3 were administered intraperitoneally in mice, 1 showed a lowering in the blood glucose level, overall maintenance of the pancreatic tissue mass, restriction of DNA damage in pancreatic cells, and retention of lipid droplet (LD) frequency, whereas 2 and 3 showed hepatic tissue mass consistency by inhibiting the DNA damage in hepatic cells, prior to the exposure to a potent diabetic inducer, alloxan (ALX). Similar trends of results were observed in inhibiting the generation of reactive oxygen species (ROS) in the pancreatic and hepatic cells, as examined by spectrofluorometric methods. Thus, 1 seems to be a better compound for overall diabetic management and control, whereas 2 and 3 seem to be promising compounds for designing chemopreventive drugs against hepatic carcinoma.
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Affiliation(s)
- Avishek Majumder
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Nityananda Dutta
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Sudatta Dey
- Department of Zoology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Priyanka Sow
- Department of Zoology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Asmita Samadder
- Department of Zoology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Gonela Vijaykumar
- Department of Chemical Sciences, Indian Institute of Science Education & Research-Kolkata, Mohanpur, West Bengal 741246, India
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology & Science Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
| | - Manindranath Bera
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
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Majumder A, Dutta N, Das A, Carrella L, Bera M. Exploring new water soluble bridged dicopper(II) assemblies: Synthesis, structure, spectroscopic characterization, properties, and their interactions with d-glucosamine. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115417] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Dutta N, Haldar S, Majumder A, Vijaykumar G, Carrella L, Bera M. Synthesis, structure and properties of a novel self-assembled tetranuclear copper(II) complex derived from carboxylate-based multidentate ligand. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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Majumder A, Dutta N, Haldar S, Das A, Carrella L, Bera M. Aromatic dicarboxylate incorporated new di- and tetranuclear cobalt(II) complexes: Synthetic and structural aspects, and evaluation of properties and catalytic activity. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Dutta N, Majumder A, Das A, Chatterjee A, Tarafder M, Datta B, Bera M. Synthetic, structural, spectral and DNA binding aspects of copper(II), nickel(II) and zinc(II) dimers of new carboxylate-based tripodal ligand. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127708] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Haldar S, Dutta N, Vijaykumar G, Das A, Carrella L, Oliver A, Bera M. Synthesis, structure and properties of new heterometallic octanuclear Li2Na2Cu4 and decanuclear Li2Zn8 complexes. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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Dutta N, Haldar S, Vijaykumar G, Paul S, Chattopadhyay AP, Carrella L, Bera M. Phosphatase-like Activity of Tetranuclear Iron(III) and Zinc(II) Complexes. Inorg Chem 2018; 57:10802-10820. [PMID: 30130107 DOI: 10.1021/acs.inorgchem.8b01441] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nityananda Dutta
- Department of Chemistry, University of Kalyani, Kalyani, West Bengal-741235, India
| | - Shobhraj Haldar
- Department of Chemistry, University of Kalyani, Kalyani, West Bengal-741235, India
| | - Gonela Vijaykumar
- Department of Chemical Sciences, Indian Institute of Science Education & Research Kolkata, Mohanpur, West Bengal-741246, India
| | - Suvendu Paul
- Department of Chemistry, University of Kalyani, Kalyani, West Bengal-741235, India
| | | | - Luca Carrella
- Institut fur Anorganische Chemie und Analytische Chemie, Johannes-Gutenberg Universitat Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Manindranath Bera
- Department of Chemistry, University of Kalyani, Kalyani, West Bengal-741235, India
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14
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Haldar S, Vijaykumar G, Carrella L, Musie GT, Bera M. Structure and properties of a novel staircase-like decanuclear [CuII10] cluster supported by carbonate and carboxylate bridges. NEW J CHEM 2018. [DOI: 10.1039/c7nj03714g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel staircase-like decanuclear copper(ii) cluster composed of a pair of [CuII5] pentameric units that are linked together exclusively by two μ2:η2:η1carbonate ligands is reported. The cluster also shows a rare μ3:η2:η1:η1bridging coordination mode of benzoate groups of the ligand.
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Affiliation(s)
| | - Gonela Vijaykumar
- Department of Chemical Sciences
- Indian Institute of Science Education & Research Kolkata
- Mohanpur
- India
| | - Luca Carrella
- Institut fur Anorganische Chemie und Analytische Chemie
- Johannes-Gutenberg Universität Mainz
- D-55128 Mainz
- Germany
| | - Ghezai T. Musie
- Department of Chemistry
- The University of Texas at San Antonio
- San Antonio
- USA
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Balewski Ł, Gdaniec M, Sączewski J, Wicher B, Sączewski F. Copper(II)-assisted hydrolysis of cyclic ureas: Transformation of 1-(pyridin-2-yl)-2,3,7,8-tetrahydro-1H-imidazo[2,1-b][1,3,5]triazepin-5(6H)-ones into N1-[1-(pyridin-2-yl)imidazolidin-2-ylidene]-ethane-1,2-diamine ligands. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.08.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Giri GC, Haldar S, Ghosh AK, Chowdhury P, Carrella L, Ghosh U, Bera M. New cyclic tetranuclear copper(II) complexes containing quadrilateral cores: Synthesis, structure, spectroscopy and their interactions with DNA in aqueous solution. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.04.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Haldar S, Vijaykumar G, Carrella L, Batha S, Musie GT, Bera M. Inorganic Phosphate and Arsenate within New Tetranuclear Copper and Zinc Complexes: Syntheses, Crystal Structures, Magnetic, Electrochemical, and Thermal Studies. ACS OMEGA 2017; 2:1535-1549. [PMID: 31457522 PMCID: PMC6641055 DOI: 10.1021/acsomega.7b00189] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/07/2017] [Indexed: 06/10/2023]
Abstract
Three, PO4 3-/HPO4 2- and AsO4 3--incorporated, new tetranuclear complexes of copper(II) and zinc(II) ions have been synthesized and fully characterized. In methanol-water, reactions of H3cpdp (H3cpdp = N,N'-Bis[2-carboxybenzomethyl]-N,N'-Bis[2-pyridylmethyl]-1,3-diaminopropan-2-ol) with copper(II) chloride in the presence of either NaOH/Na2HPO4·2H2O or KOH/Na2HAsO4·7H2O lead to the isolation of the tetranuclear complexes Na3[Cu4(cpdp)2(μ4-PO4)](OH)2·14H2O (1) and K2[Cu4(cpdp)2(μ4-AsO4)](OH)·162/3H2O (2), respectively. Similarly, the reaction of H3cpdp with zinc(II) chloride in the presence of NaOH/Na2HPO4·2H2O yields a tetranuclear complex, Na(H3O)2[Zn4(cpdp)2(μ4-HPO4)]Cl3·121/2H2O (3). All complexes are characterized by single-crystal X-ray diffraction and other analytical techniques, such as Fourier transform infrared and UV-vis spectroscopy, thermogravimetric and electrochemical studies. The solid-state molecular framework of each complex contains two monocationic [M2(cpdp)]+ (M = Cu, Zn) units, which are exclusively coordinated to either phosphate/hydrogen phosphate or arsenate groups in a unique mode. All three complexes exhibit a μ4:η1:η1:η1:η1 bridging mode of the PO4 3-/HPO4 2-/AsO4 3- groups, with each bridging among four metal ions. The thermal properties of all three complexes have been investigated by thermogravimetric analysis. Low-temperature magnetic studies of complexes 1 and 2 disclose moderate antiferromagnetic interactions mediated among the copper centers through alkoxide and phosphate/arsenate bridges. Electrochemical studies of complexes 1 and 2 in dimethylformamide using cyclic voltammetry reveal the presence of a fairly assessable one-electron metal-based irreversible reduction and one quasireversible oxidation couple.
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Affiliation(s)
- Shobhraj Haldar
- Department
of Chemistry, University of Kalyani, Kalyani, West Bengal 741235, India
| | - Gonela Vijaykumar
- Department
of Chemical Sciences, Indian Institute of
Science Education & Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Luca Carrella
- Institut
fur Anorganische Chemie und Analytische Chemie, Johannes-Gutenberg Universitat Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Steven Batha
- Department
of Chemistry, The University of Texas at
San Antonio, San Antonio, Texas 78249, United States
| | - Ghezai T. Musie
- Department
of Chemistry, The University of Texas at
San Antonio, San Antonio, Texas 78249, United States
| | - Manindranath Bera
- Department
of Chemistry, University of Kalyani, Kalyani, West Bengal 741235, India
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18
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Linking PO43− and HAsO42− anions with a dinuclear [ZnII2] complex: Formation and stabilization of novel decanuclear metallomacrocyclic [ZnII10] and tetranuclear [ZnII4] clusters. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.09.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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19
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Haldar S, Patra A, Vijaykumar G, Carrella L, Bera M. Dinuclear and tetranuclear complexes of copper coordinated by an anthracene-based new μ-bis(tridentate) ligand: Synthesis, structure, spectroscopy and magnetic properties. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.06.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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