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Ganguly S, Bhunia P, Mayans J, Ghosh A. Trinuclear heterometallic CuII–MII (M = Mn and Co) complexes of N,O donor ligands with o-nitro benzoate anion: structures, magnetic properties and catalytic oxidase activities. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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2
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Keshavarzian E, Asadi Z, Poupon M, Dusek M, Rastegari B. Heterodinuclear Cu–Gd (3d-4f) complex with di-compartmental Schiff base ligand in biological activity: Synthesis, crystal structure, catecholase activity and DNA & BSA-binding studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117785] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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3
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Ganguly S, Bhunia P, Mayans J, Ghosh A. Pentanuclear M II–Mn II (M = Ni and Cu) complexes of N 2O 2 donor ligands with a variation of carboxylate anions: syntheses, structures, magnetic properties and catecholase-like activities. NEW J CHEM 2022. [DOI: 10.1039/d2nj02215j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One NiII2MnII3 and two CuII2MnII3 complexes have been synthesized using N2O2 donor ligands. The former complex exhibits spin crossover at 2 K temperature. All the complexes exhibit catecholase-like activities.
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Affiliation(s)
- Sayantan Ganguly
- Department of Chemistry, University College of Science, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, India
- Department of Chemistry, Taki Government College, Taki, Hasnabad, West Bengal 743429, India
| | - Pradip Bhunia
- Department of Chemistry, University College of Science, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, India
| | - Júlia Mayans
- Departament de Química Inorgànica i Orgànica and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), Martí iFranqués 1-11, Barcelona 08028, Spain
| | - Ashutosh Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, India
- Rani Rashmoni Green University, Tarakeswar, Hooghly 712410, West Bengal, India
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4
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Muley A, Karumban KS, Kumbhakar S, Giri B, Maji S. High phenoxazinone synthase activity of two mononuclear cis-dichloro cobalt( ii) complexes with a rigid pyridyl scaffold. NEW J CHEM 2022. [DOI: 10.1039/d1nj03992j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Two mononuclear cis-dichloro cobalt(II) complexes with bidentate pyridyl ligands have been successfully synthesized and employed as active o-aminophenol oxidation catalysts resulting in high turnover numbers under aerobic conditions.
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Affiliation(s)
- Arabinda Muley
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Kalai Selvan Karumban
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Sadananda Kumbhakar
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Bishnubasu Giri
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Somnath Maji
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India
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Kumbhakar S, Giri B, Muley A, Karumban KS, Maji S. Design, synthesis, structural, spectral, and redox properties and phenoxazinone synthase activity of tripodal pentacoordinate Mn(II) complexes with impressive turnover numbers. Dalton Trans 2021; 50:16601-16612. [PMID: 34747419 DOI: 10.1039/d1dt01925b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catechol oxidase (CO) and phenoxazinone synthase (PHS) are two enzymes of immense significance due to their capability to oxidize catechols and o-aminophenols to o-quinones and phenoxazinones, respectively. In this connection two mononuclear manganese complexes with the molecular framework [MnII(Ln)Cl]Cl {L1: tris((1H-benzo[d]imidazol-2-yl)methyl)amine; n = 1 and L2: tris(N-methylbenzimidazol-2-ylmethyl)amine; n = 2} have been designed to be potential catalysts for OAPH (o-aminophenol) oxidation. Both the ligands and their corresponding metal complexes have been successfully synthesized and thoroughly characterized by different spectroscopic and analytical techniques such as FT-IR, 1H NMR, UV-vis spectroscopy, EPR spectroscopy and ESI mass spectroscopy. The molecular structures of [MnII(L1)Cl]Cl (1) and [MnII(L2)Cl]Cl (2) have been revealed by a single-crystal X-ray diffraction study. The spectral properties and redox behaviour of both the complexes were examined. Under ambient conditions, 1 and 2 show excellent phenoxazinone synthase activity as both are very susceptible to oxidize o-aminophenol to phenoxazinone. The kinetic parameters for both complexes have been determined by analyzing the experimental spectroscopic data. The turnover numbers (kcat value) of these two complexes are extremely high, 440 h-1 and 234 h-1 for 1 and 2, respectively. The present report offers a thorough overview of information involving the role of the metal ions and their extent of phenoxazinone synthase mimicking activity. The oxidation of o-aminophenol to 2-amino-3H-phenoxazine-3-one (APX) by catalytic oxidation of oxygen (O2) by the reaction with transition metal complexes has been an important study for the last few decades. The current study evidently showed better performance of our synthesized Mn(II) complexes than all the predecessors. The plausible mechanism has been reiterated based on the experimental data via ESI-MS spectra and considering the concepts from the previously reported mechanisms involved in the formation of hydrogen peroxide (H2O2) as an intermediate substrate is fairly indicating the involvement of molecular oxygen in the catalytic cycle.
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Affiliation(s)
- Sadananda Kumbhakar
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Bishnubasu Giri
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Arabinda Muley
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Kalai Selvan Karumban
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
| | - Somnath Maji
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502284, Telangana, India.
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Jana NC, Ghorai P, Brandão P, Jagličić Z, Panja A. Proton controlled synthesis of two dicopper(II) complexes and their magnetic and biomimetic catalytic studies together with probing the binding mode of the substrate to the metal center. Dalton Trans 2021; 50:15233-15247. [PMID: 34623364 DOI: 10.1039/d1dt02369a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This paper describes the synthesis, and structural and spectroscopic characterizations of two doubly bridged dicopper(II) complexes, [Cu2(μ-H2L)(μ-OMe)](ClO4)4·2H2O (1) and [Cu2(μ-L)(μ-OH)](ClO4)2 (2), with a binucleating ligand (HL) derived from the Schiff base condensation of DFMP and N,N-dimethyldipropylenetriamine, and their biomimetic catalytic activities were related to CAO and phenoxazinone synthase using 3,5-di-tert-butylcatechol and o-aminophenol (OAPH), respectively, as model substrates. Structural studies reveal that the major differences in these structures appear to be from the distinct roles of the tertiary amine groups of the ligands, which are protonated in 1, whereas it coordinates the metal centers in 2. Magnetic studies disclose that two copper(II) centers are strongly antiferromagnetically coupled with slightly different J values, which is further interpreted and discussed. They exhibited very different biomimetic catalytic activities; whereas 2 is an efficient catalyst, complex 1 showed somewhat lower substrate oxidation. The higher reactivity in 2 is rationalized by the strong involvement of the tertiary amine group of the Schiff base ligand, where the substrate oxidation is favored because of the transfer of protons from the substrate to the tertiary amine group, showing the importance of the functional groups in proximity to the bimetallic active site. Emphasis was also given to probing the binding mode of the substrate using an electronically deficient tetrabromomocatechol (Br4CatH2) and the isolated compound [Cu6(μ-HL)2(μ-OH)2(Br4Cat)4](NO3)2·4H2O (3) which suggests that monodentate asymmetric binding of 3,5-di-tert-butylcatechol and OAPH occurs during the course of the catalytic reaction.
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Affiliation(s)
- Narayan Ch Jana
- Department of Chemistry, Panskura Banamali College, Panskura RS, West Bengal 721152, India.
| | - Pravat Ghorai
- Department of Chemistry, Panskura Banamali College, Panskura RS, West Bengal 721152, India. .,Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Paula Brandão
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Zvonko Jagličić
- Institute of Mathematics, Physics and Mechanics & Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jadranska 19, SI-1000 Ljubljana, Slovenia
| | - Anangamohan Panja
- Department of Chemistry, Panskura Banamali College, Panskura RS, West Bengal 721152, India. .,Department of Chemistry, Gokhale Memorial Girls' College, 1/1 Harish Mukherjee Road, Kolkata 700020, India
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7
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Mukherjee D, Nag P, Shteinman AA, Vennapusa SR, Mandal U, Mitra M. Catechol oxidation promoted by bridging phenoxo moieties in a bis(μ-phenoxo)-bridged dicopper(ii) complex. RSC Adv 2021; 11:22951-22959. [PMID: 35480461 PMCID: PMC9034335 DOI: 10.1039/d1ra02787e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 06/16/2021] [Indexed: 11/21/2022] Open
Abstract
A dinuclear copper(ii) complex [Cu2(papy)2(CH3OH)2] has been synthesized by reaction of one equiv. of Cu(OAc)2·2H2O with one equiv. of the tetradentate tripodal ligand H2papy [N-(2-hydroxybenzyl)-N-(2-picolyl)glycine] and has been characterized by various spectroscopic techniques and its solid state structure has been confirmed by X-ray crystal structure analysis. The single-crystal structure of the complex reveals that the two copper centers are hexa-coordinated and bridged by two O-atoms of the phenoxo moieties. The variable temperature magnetic susceptibility measurement of the complex reveals weak ferromagnetic interactions among the Cu(ii) ions with a J value of 1.1 cm−1. The catecholase activity of the complex has been investigated spectrophotometrically using 3,5-di-tert-butyl catechol as a model substrate in methanol solvent under aerobic conditions. The Michaelis–Menten kinetic treatment has been applied using different excess substrate concentrations. The parameters obtained from the catecholase activity by the complex are KM 2.97 × 10−4 M, Vmax 2 × 10−4 M s−1, and kcat 7.2 × 103 h−1. A reaction mechanism has been proposed based on experimental findings and theoretical calculations. The catechol substrate binds to dicopper(ii) centers and subsequently two electrons are transferred to the metal centers from the substrate. The bridging phenoxo moieties participate as a Brønsted base by accepting protons from catechol during the catalytic cycle and thereby facilitating the catechol oxidation process. A bis(μ-phenoxo)-bridged dicopper(ii) complex capable of oxidizing catechol with the highest efficiency amongst any bis(μ-phenoxo)-bridged dicopper(ii) complexes is reported.![]()
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Affiliation(s)
- Debojyoti Mukherjee
- Department of Chemistry, University of Burdwan Golapbug Campus, Purba Bardhaman-713104 India
| | - Probal Nag
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM) Maruthamala P. O., Vithura Thiruvananthapuram-695551 Kerala India
| | - Albert A Shteinman
- Institute of Problems of Chemical Physics 142432 Chernogolovka, Moscow district Russian Federation
| | - Sivaranjana Reddy Vennapusa
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM) Maruthamala P. O., Vithura Thiruvananthapuram-695551 Kerala India
| | - Ujjwal Mandal
- Department of Chemistry, University of Burdwan Golapbug Campus, Purba Bardhaman-713104 India
| | - Mainak Mitra
- Department of Chemistry, Burdwan Raj College Aftab Avenue, Purba Bardhaman-713104 India
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8
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Chatterjee A, Seikh MM, Chowdhury S, Ghosh R. Catecholase and catechol cleavage activities of a dinuclear phenoxobridged Cu(II) complex: Synthesis, structure and magnetostructural studies. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Rakshit T, Mandal B, Alenezi KM, Ganguly R, Mandal D. Synthesis, structure, luminescent properties and catecholase activity of Zn(II) complex with N, O chelating agent. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Nandi NB, Purkayastha A, Roy S, Kłak J, Ganguly R, Alkorta I, Misra TK. Tetranuclear copper( ii) cubane complexes derived from self-assembled 1,3-dimethyl-5-( o-phenolate-azo)-6-aminouracil: structures, non-covalent interactions and magnetic property. NEW J CHEM 2021. [DOI: 10.1039/d0nj05232a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new doubly opened 4 + 2 Cu4O4 cubane cluster exhibits strong antiferromagnetic exchange coupling with J1 = −110.1 cm−1, and J2 = −27.1 cm−1.
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Affiliation(s)
| | - Atanu Purkayastha
- Department of Chemistry
- National Institute of Technology
- Agartala 799046
- India
| | - Shaktibrata Roy
- Department of Chemistry
- National Institute of Technology
- Agartala 799046
- India
| | - Julia Kłak
- Faculty of Chemistry
- University of Wroclaw
- Wroclaw 50383
- Poland
| | | | - Ibon Alkorta
- Instituto de Química Médica
- CSIC
- 28006 Madrid
- Spain
| | - Tarun Kumar Misra
- Department of Chemistry
- National Institute of Technology
- Agartala 799046
- India
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11
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Khan S, Dutta T, Cortijo M, González-Prieto R, Drew MGB, Gomila RM, Frontera A, Chattopadhyay S. Phenoxido mediated antiferromagnetic and azide mediated ferromagnetic coupling in two dinuclear ferromagnetic nickel( ii) complexes with isomeric Schiff bases: a theoretical insight on the pathway of magnetic interaction. CrystEngComm 2021. [DOI: 10.1039/d0ce01861a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two relatively rare mixed phenoxo and azide bridged dinuclear nickel(ii) complexes have been discussed. Both complexes show strong intermolecular hydrogen bonding interactions and exhibit ferromagnetic exchange coupling.
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Affiliation(s)
- Samim Khan
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Tamal Dutta
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Miguel Cortijo
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - Rodrigo González-Prieto
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Madrid
- Spain
| | | | - Rosa M. Gomila
- Serveis Cientifico-Tècnics
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- SPAIN
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- SPAIN
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pH dependent catecholase activity of Fe(II) complexes of type [Fe(L)]X2 [L = N-(phenyl-pyridin-2-yl-methylene)-ethane-1,2-diamine; X = ClO4− (1), PF6− (2)]: Role of counter anion on turnover number. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119933] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Ganguly S, Mayans J, Ghosh A. Modulation of Nuclearity in Cu II -Mn II Complexes of a N 2 O 2 Donor Ligand Depending upon Carboxylate Anions: Structures, Magnetic Properties and Catalytic Oxidase Activities. Chem Asian J 2020; 15:4055-4069. [PMID: 32722886 DOI: 10.1002/asia.202000706] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/24/2020] [Indexed: 12/12/2022]
Abstract
Three new hetero-metallic copper(II)-manganese(II) complexes, [(CuL)2 Mn3 (C6 H5 CO2 )6 ] (1), [(CuL)2 Mn(CH3 CO2 )2 ] (2), and {[(CuL)2 Mn(C6 H5 CH2 CO2 )2 ] ⋅ 2CH3 CN} (3), have been synthesized using [CuL] as ''metalloligand'' (where H2 L=N,N'-bis(2-hydroxynaphthyl-methylidene)-1,3-propanediamine). Single-crystal structural analyses show an almost linear penta-nuclear structure for complex 1 where a square planar [CuL] unit is connected to each of the two terminal MnII ions of a linear, centrosymmetric [Mn3 (benzoate)6 ] unit through the double phenoxido bridges. Both complexes 2 and 3 possess a linear tri-nuclear structure where two terminal square-pyramidal [CuL] units are bonded to the central MnII ion through double phenoxido oxygen atoms along with a syn-syn bridging acetate (for 2)/phenyl acetate (for 3). All three complexes exhibit catecholase, and phenoxazinone synthase-like activities under aerial conditions. For catecholase like activity, the turnover numbers (kcat ) are 595, 40, and 205 h-1 whereas, for phenoxazinone synthase like activity, the turnover numbers are 25, 4, and 11 h-1 for complexes 1-3, respectively. The mechanism of both catalytic oxidase activities is proposed on the basis of mass spectral evidences. Variable-temperature (2-300 K) dc molar magnetic susceptibility measurements of 1 reveal antiferromagnetic interactions between the Cu-Mn centres (J1 =-29.3 cm-1 ), and also between the Mn-Mn centres of the [Mn3 (benzoate)6 ] unit (J2 =-0.68 cm-1 ). On increasing the magnetic field at 2 K, its ground spin state changes from S=3/2 to S=5/2 at 4 T, attributable to the low value of J2 which makes the excited spin states close in energy with the ground spin state. Complexes 2 and 3 show antiferromagnetic coupling interactions between the Cu-Mn pairs with J values of -9.51, and -5.32 cm-1 , respectively.
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Affiliation(s)
- Sayantan Ganguly
- Department of Chemistry, University College of Science, University of Calcutta, 92, A. P. C. Road, Kolkata, 700 009, India.,Department of Chemistry, Taki Government College, Taki, Hasnabad, West Bengal, 743429, India
| | - Júlia Mayans
- Instituto de Ciencia Molecular (ICMol), Universitat de València, c/ Catedrático José Beltrán 2, 46980 Paterna, València, Spain
| | - Ashutosh Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92, A. P. C. Road, Kolkata, 700 009, India.,Rani Rashmoni Green University, Tarakeswar, Hooghly, 712419, West Bengal, India
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Tandon SS, Bunge SD, Patel N, Wang EC, Thompson LK. Self-Assembly of Antiferromagnetically-Coupled Copper(II) Supramolecular Architectures with Diverse Structural Complexities. Molecules 2020; 25:molecules25235549. [PMID: 33256163 PMCID: PMC7734591 DOI: 10.3390/molecules25235549] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022] Open
Abstract
The self-assembly of 2,6-diformyl-4-methylphenol (DFMP) and 1-amino-2-propanol (AP)/2-amino-1,3-propanediol (APD) in the presence of copper(II) ions results in the formation of six new supramolecular architectures containing two versatile double Schiff base ligands (H3L and H5L1) with one-, two-, or three-dimensional structures involving diverse nuclearities: tetranuclear [Cu4(HL2−)2(N3)4]·4CH3OH·56H2O (1) and [Cu4(L3−)2(OH)2(H2O)2] (2), dinuclear [Cu2(H3L12−)(N3)(H2O)(NO3)] (3), polynuclear {[Cu2(H3L12−)(H2O)(BF4)(N3)]·H2O}n (4), heptanuclear [Cu7(H3L12−)2(O)2(C6H5CO2)6]·6CH3OH·44H2O (5), and decanuclear [Cu10(H3L12−)4(O)2(OH)2(C6H5CO2)4] (C6H5CO2)2·20H2O (6). X-ray studies have revealed that the basic building block in 1, 3, and 4 is comprised of two copper centers bridged through one μ-phenolate oxygen atom from HL2− or H3L12−, and one μ-1,1-azido (N3−) ion and in 2, 5, and 6 by μ-phenoxide oxygen of L3− or H3L12− and μ-O2− or μ3-O2− ions. H-bonding involving coordinated/uncoordinated hydroxy groups of the ligands generates fascinating supramolecular architectures with 1D-single chains (1 and 6), 2D-sheets (3), and 3D-structures (4). In 5, benzoate ions display four different coordination modes, which, in our opinion, is unprecedented and constitutes a new discovery. In 1, 3, and 5, Cu(II) ions in [Cu2] units are antiferromagnetically coupled, with J ranging from −177 to −278 cm−1.
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Affiliation(s)
- Santokh S. Tandon
- Department of Chemistry and Biochemistry, Kent State University-Salem Campus, Salem, OH 44460, USA
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA; (S.D.B.); (N.P.); (E.C.W.)
- Correspondence: ; Tel.: +1-330-337-4235
| | - Scott D. Bunge
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA; (S.D.B.); (N.P.); (E.C.W.)
| | - Neil Patel
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA; (S.D.B.); (N.P.); (E.C.W.)
| | - Esther C. Wang
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA; (S.D.B.); (N.P.); (E.C.W.)
| | - Laurence K. Thompson
- Department of Chemistry, Memorial University, St. John’s Newfoundland, NL A1B 3X7, Canada;
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Biswas BK, Saha S, Biswas N, Chowdhury M, Frontera A, Rizzoli C, Roy Choudhury R, Roy Choudhury C. Two copper (II) complexes derived from anthranilic acid and 4-iodo-anthranilic acid Schiff bases: Structural elucidation, halogen bonding interactions and catalytic study using 3,5-DTBC. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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16
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Schiff base triggering synthesis of copper(II) complex and its catalytic fate towards mimics of phenoxazinone synthase activity. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119468] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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17
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Ali I, Mandal B, Saha R, Ghosh R, Chandra Majee M, Mondal D, Mitra P, Mandal D. Mono and tri-nuclear cobalt(III) complexes with sterically constrained phenol based N2O2 ligand: Synthesis, structure and catechol oxidase activity. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Khan MS, Khalid M, Ahmad MS, Shahid M, Ahmad M. Catalytic activity of Mn(III) and Co(III) complexes: evaluation of catechol oxidase enzymatic and photodegradation properties. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04127-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Oxidovanadium (V and IV) complexes incorporating coumarin based O^N^O ligand: Synthesis, structure and catalytic activities. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Synthesis, structure, DFT study and catechol oxidase activity of Cu(II) complex with sterically constrained phenol based ligand. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Jana A, Brandão P, Jana H, Jana AD, Mondal G, Bera P, Santra A, Mahapatra AK, Bera P. Synthesis, structure and catalytic promiscuity of a napthyl-pyrazole Mn(II) complex and structure–activity relationships. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1658192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Abhimanyu Jana
- Post Graduate Department of Chemistry, Panskura Banamali College (Vidyasagar University), Midnapore (East), India
| | - Paula Brandão
- Department of Chemistry, CICECO, University of Aveiro, Aveiro, Portugal
| | - Harekrishna Jana
- Department of Microbiology, Panskura Banamali College (Vidyasagar University), Midnapore (East), India
| | | | - Gopinath Mondal
- Post Graduate Department of Chemistry, Panskura Banamali College (Vidyasagar University), Midnapore (East), India
| | - Pradip Bera
- Post Graduate Department of Chemistry, Panskura Banamali College (Vidyasagar University), Midnapore (East), India
- Department of Chemistry, Kandi Raj College, Murshidabad, India
| | - Ananyakumari Santra
- Post Graduate Department of Chemistry, Panskura Banamali College (Vidyasagar University), Midnapore (East), India
| | - Ajit Kumar Mahapatra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah, India
| | - Pulakesh Bera
- Post Graduate Department of Chemistry, Panskura Banamali College (Vidyasagar University), Midnapore (East), India
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22
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Cao S, Cheng R, Wang D, Zhao Y, Tang R, Yang X, Chen J. Dinuclear copper(II) complexes of “end-off” bicompartmental ligands: Alteration of the chelating arms on ligands to regulate the reactivity of the complexes towards DNA. J Inorg Biochem 2019; 192:126-139. [DOI: 10.1016/j.jinorgbio.2018.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/23/2018] [Accepted: 12/24/2018] [Indexed: 01/08/2023]
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23
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Chen SJ, Li SH, Wang WH, Long YF, Zhang WL, Wang T, Xu YL. Crystal structure of poly[aqua-μ 2-4,4′-bis(pyrid-4-yl)biphenyl-κ 2
N: N′)-μ 4-4′-methyl-[1,1′-biphenyl]-3,5-dicarboxylato-κ 4
O: O′: O′′: O′′′)manganese(II)], C 52H 40N 2O 10Mn 2. Z KRIST-NEW CRYST ST 2019. [DOI: 10.1515/ncrs-2017-0312] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C52H40N2O10Mn2, monoclinic, I2/a (no. 15), a = 8.6162(4) Å, b = 11.0217(5) Å, c = 45.266(2) Å, β = 92.828(4)°, V = 4293.5(3) Å3, Z = 4, R
gt(F) = 0.0476, wR
ref(F
2) = 0.0988, T = 293(2) K.
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Affiliation(s)
- Shi-Jun Chen
- College of Chemistry and Chemical Engineering , Xi’an Shiyou University , Xi’an 710065, Shanxi Province , P.R. China
| | - Shi-Hui Li
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang 471022, Henan Province , P.R. China
| | - Wei-Hua Wang
- The Third Oil Production Plant, Changqing Oilfield Co. of PetroChina , Yinchuan 750006, Ningxia , P.R. China
| | - Yong-Fu Long
- The Third Oil Production Plant, Changqing Oilfield Co. of PetroChina , Yinchuan 750006, Ningxia , P.R. China
| | - Wen-Lai Zhang
- The Third Oil Production Plant, Changqing Oilfield Co. of PetroChina , Yinchuan 750006, Ningxia , P.R. China
| | - Tao Wang
- The Third Oil Production Plant, Changqing Oilfield Co. of PetroChina , Yinchuan 750006, Ningxia , P.R. China
| | - Yan-Li Xu
- The Third Oil Production Plant, Changqing Oilfield Co. of PetroChina , Yinchuan 750006, Ningxia , P.R. China
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24
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Dasgupta S, Chakraborty P, Kundu P, Kara H, Aullón G, Zangrando E, Das D. Designing antiferromagnetically coupled mono-, di- and tri-bridged copper( ii)-based catecholase models by varying the ‘Auxiliary Parts’ of the ligand and anionic co-ligand. CrystEngComm 2019. [DOI: 10.1039/c9ce01115c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The role of the auxiliary part of ligands towards the architecture of copper(ii)-based catecholase models were unveiled with the help of DFT study.
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Affiliation(s)
| | | | - Priyanka Kundu
- Department of Chemistry
- University of Calcutta
- Kolkata 700009
- India
| | - Hulya Kara
- Department of Physics
- Faculty of Science and Art
- Balikesir University
- 10145 Balikesir
- Turkey
| | - Gabriel Aullón
- Departament de Química Inorgànica i Orgànica (Secció de Química Inorgànica) and Institut de QuímicaTeòrica i Computacional
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- 34127 Trieste
- Italy
| | - Debasis Das
- Department of Chemistry
- University of Calcutta
- Kolkata 700009
- India
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25
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Song W, Xu XL, Yang YJ, Li SH. Crystal structure of poly[aqua-(μ3-4-(pyridin-4-yl)isophthalato-κ4O,O′:O′′:O′′′)-(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:O′)samarium(III)], C26H18N2O9Sm. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2017-0305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractC26H18N2O9Sm, monoclinic P21/n (no. 14), a = 8.9665(3) Å, b = 9.3617(3) Å, c = 28.3925(9) Å, β = 95.134(3)°, V = 2373.76(12) Å3, Z = 4, Rgt(F) = 0.0317, wRref(F2) = 0.0637, T = 293(2) K.
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Affiliation(s)
- Wei Song
- School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, Henan Province, P.R. China
| | - Xue-Li Xu
- School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, Henan Province, P.R. China
| | - Yan-Ju Yang
- School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, Henan Province, P.R. China
| | - Shi-Hui Li
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, Henan Province, P.R. China
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26
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Aggregation of mononuclear copper complexes by metal-oxidation-induced ligand deprotonation. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.08.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Duan Y, Li SH. Crystal structure of catena-poly[diaqua-bis(μ 2-2-(2-((2,6-dichlorophenyl)amino)phenyl)acetato-κ 3
O,O′: O′)calcium(II)], C 56H 48N 4Ca 2Cl 8O 12. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2017-0109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C56H48N4Ca2Cl8O12, monoclinic, P21/c, a = 16.776(8) Å, b = 24.193(12) Å, c = 7.657(4) Å, β = 101.110(7)°, V = 3050(3) Å3, Z = 2, R
gt(F) = 0.0685, wR
ref(F
2) = 0.1663, T = 296(2) K.
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Affiliation(s)
- Ying Duan
- College of Food and Drug , Luoyang Normal University , Luoyang 471934, Henan Province , P.R. China
| | - Shi-Hui Li
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang 471934, Henan Province , P.R. China
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28
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Singh O, Maji A, Singh UP, Ghosh K. Water-Soluble Copper Complex Derived from Ligand TETA TAHaving NNN Donors: Studies on Rapid Degradation of Organic Dyes, Catecholase and Phenoxazinone Synthase Activities. ChemistrySelect 2018. [DOI: 10.1002/slct.201800045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Ovender Singh
- Department of Chemistry; IIT Roorkee; Roorkee - 247667, Uttarakhand India
| | - Ankur Maji
- Department of Chemistry; IIT Roorkee; Roorkee - 247667, Uttarakhand India
| | - Udai P. Singh
- Department of Chemistry; IIT Roorkee; Roorkee - 247667, Uttarakhand India
| | - Kaushik Ghosh
- Department of Chemistry; IIT Roorkee; Roorkee - 247667, Uttarakhand India
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29
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Chatterjee A, Yadav HR, Choudhury AR, Ali A, Singh Y, Ghosh R. Tyrosinase and catecholase-like activities of a dinuclear Cu(II) complex. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.11.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Khan S, Herrero S, González-Prieto R, Drew MGB, Banerjee S, Chattopadhyay S. A mixed phenoxo and end-on azide bridged dinuclear copper(ii) Schiff base complex: synthesis, structure, magnetic characterization and DFT study. NEW J CHEM 2018. [DOI: 10.1039/c8nj02612b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The magnetic properties of a dinuclear copper(ii) Schiff base complex with dissimilar bridges have been investigated through some theoretical calculations (DFT) using suitable modeled structures.
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Affiliation(s)
- Samim Khan
- Department of Chemistry
- Jadavpur University
- Kolkata-700 032
- India
| | - Santiago Herrero
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria
- 28040 Madrid
| | - Rodrigo González-Prieto
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria
- 28040 Madrid
| | | | - Snehasis Banerjee
- Govt. College of Engineering and Leather Technology
- Salt Lake Sector-III
- Kolkata-700 106
- India
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31
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Guo JB, Li SH. Crystal structure of bis(4-(1 H-pyrazol-5-yl)pyridine-κ 2
N: N′)-bis(2-(2-((2,6-difluorophenyl)amino)phenyl)acetate-κO)cadmium(II), C 44H 34N 8CdCl 4O 4. Z KRIST-NEW CRYST ST 2017. [DOI: 10.1515/ncrs-2017-0102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C44H34N8CdCl4O4, monoclinic, P21/c (no. 14), a = 9.7056(2) Å, b = 14.3244(3) Å, c = 15.3626(3) Å, β = 99.7540(10)°, V = 2104.94(7) Å3, Z = 2, R
gt(F) = 0.0271, wR
ref(F
2) = 0.0717, T = 296(2) K.
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Affiliation(s)
- Jin-Bo Guo
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang 471022 , Henan Province, P.R. China
| | - Shi-Hui Li
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang 471022 , Henan Province, P.R. China
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32
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Synthesis, crystal structure, catecholase and phenoxazinone synthase activities of a mononuclear cobalt(III) complex containing in situ formed tridentate N-donor Schiff base. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.077] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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33
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Kumar SC, Ghosh AK, Chen JD, Ghosh R. Structurally characterized mononuclear Mn(II) complex: Functional model for catecholase and phenoxazinone synthase activities. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.04.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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34
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Gülzow J, Hörner G, Strauch P, Stritt A, Irran E, Grohmann A. Oxygen Delivery as a Limiting Factor in Modelling Dicopper(II) Oxidase Reactivity. Chemistry 2017; 23:7009-7023. [PMID: 28094884 DOI: 10.1002/chem.201605868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Indexed: 11/10/2022]
Abstract
Deprotonation of ligand-appended alkoxyl groups in mononuclear copper(II) complexes of N,O ligands L1 and L2 , gave dinuclear complexes sharing symmetrical Cu2 O2 cores. Molecular structures of these mono- and binuclear complexes have been characterized by XRD, and their electronic structures by UV/Vis, 1 H NMR, EPR and DFT; moreover, catalytic performance as models of catechol oxidase was studied. The binuclear complexes with anti-ferromagnetically coupled copper(II) centers are moderately active in quinone formation from 3,5-di-tert-butyl-catechol under the established conditions of oxygen saturation, but are strongly activated when additional dioxygen is administered during catalytic turnover. This unforeseen and unprecedented effect is attributed to increased maximum reaction rates vmax , whereas the substrate affinity KM remains unaffected. Oxygen administration is capable of (partially) removing limitations to turnover caused by product inhibition. Because product inhibition is generally accepted to be a major limitation of catechol oxidase models, we think that our observations will be applicable more widely.
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Affiliation(s)
- Jana Gülzow
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Gerald Hörner
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Peter Strauch
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam-Golm, Germany
| | - Anika Stritt
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Elisabeth Irran
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Andreas Grohmann
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
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35
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Tesmar A, Witwicki M, Wyrzykowski D, Sikorski A, Jacewicz D, Drzeżdżon J, Chmurzyński L. Structure and characterization of physicochemical and magnetic properties of new complex containing monobridged oxygen copper(II) dinuclear cation. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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36
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Balakrishnan C, Theetharappan M, Kowsalya P, Natarajan S, Neelakantan M, Mariappan S. Biocatalysis, DNA–protein interactions, cytotoxicity and molecular docking of Cu(II), Ni(II), Zn(II) and V(IV) Schiff base complexes. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3776] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Chithiraivel Balakrishnan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - M. Theetharappan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - P. Kowsalya
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - Satheesh Natarajan
- Department of Pharmacy, School of Health SciencesKwazulu Natal University Durban 4001 South Africa
| | - M.A. Neelakantan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - S.S. Mariappan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
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37
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Exchange interaction between S= 1/2 centers bridged by multiple noncovalent interactions: Contribution of the individual chemical pathways to the magnetic coupling. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.12.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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Mandal L, Mandal S, Mohanta S. Syntheses, crystal structures, magnetochemistry and catechol oxidase activity of a tetracopper(ii) compound and a new type of dicopper(ii)-based 1D coordination polymer. NEW J CHEM 2017. [DOI: 10.1039/c7nj00286f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
One phenoxo–hydroxo bridged tetranuclear cluster and one phenoxo-µ1,1-azido-µ1,3-azido bridged one-dimensional coordination polymer of copper(ii) derived from a Schiff base ligand are described.
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Affiliation(s)
- Leena Mandal
- Department of Chemistry
- University of Calcutta
- Kolkata
- India
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39
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Sama F, Dhara AK, Akhtar MN, Chen YC, Tong ML, Ansari IA, Raizada M, Ahmad M, Shahid M, Siddiqi ZA. Aminoalcohols and benzoates-friends or foes? Tuning nuclearity of Cu(ii) complexes, studies of their structures, magnetism, and catecholase-like activities as well as performing DFT and TDDFT studies. Dalton Trans 2017; 46:9801-9823. [DOI: 10.1039/c7dt01571b] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Cu(ii) complexes of varying nuclearity are synthesized, characterized and assessed for catecholase activities.
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Affiliation(s)
- Farasha Sama
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Ashish Kumar Dhara
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee
- India
| | - Muhammad Nadeem Akhtar
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Yan-Cong Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Ming-Liang Tong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | | | - Mukul Raizada
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Musheer Ahmad
- Department of Applied Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - M. Shahid
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Zafar A. Siddiqi
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
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40
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Parween A, Naskar S, Mota AJ, Espinosa Ferao A, Chattopadhyay SK, Rivière E, Lewis W, Naskar S. C
i
-Symmetry, [2 × 2] grid, square copper complex with the N4,N5-bis(4-fluorophenyl)-1H-imidazole-4,5-dicarboxamide ligand: structure, catecholase activity, magnetic properties and DFT calculations. NEW J CHEM 2017. [DOI: 10.1039/c7nj01667k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
An antiferromagnetically coupled tetranuclear copper complex of a dinucleating bis amide ligand displays catecholase activity.
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Affiliation(s)
- Arfa Parween
- Department of Chemistry
- Birla Institute of Technology
- Ranchi-835215
- India
| | - Sumita Naskar
- Department of Chemistry
- RTC Institute of Technology
- Ranchi – 835219
- India
- Department of Chemistry
| | - Antonio J. Mota
- Department of Inorganic Chemistry
- Faculty of Sciences
- University of Granada
- 18002 Granada
- Spain
| | - Arturo Espinosa Ferao
- Department of Organic Chemistry
- University of Murcia
- Campus de Espinardo
- 30100 Murcia
- Spain
| | | | - Eric Rivière
- Equipe Chimie Inorganique
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Université Paris Sud
- 91400 Orsay
- France
| | - William Lewis
- School of Chemistry
- University of Nottingham
- Nottingham NG7 2RD
- UK
| | - Subhendu Naskar
- Department of Chemistry
- Birla Institute of Technology
- Ranchi-835215
- India
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41
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Li SH, Zhao Y, Zhang L. Crystal structure of catena-poly-[(μ2-2-(2-((2,6-dimethylphenyl)amino)phenyl)acetato-κ2O:O′)(μ2-2-(2-((2,6-dimethylphenyl)amino)phenyl)acetate-κ3O,O′:O′)cadmium(II)], C28H20N2Cl4O4Cd. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractC28H20N2Cl4O4Cd, monoclinic, P21/c (no. 14), a = 12.5272(4) Å, b = 28.7754(10) Å, c = 7.7485(3) Å, β = 96.627(1)°, V = 2774.48(17) Å3, Z = 4, Rgt(F) = 0.0341, wRref(F2) = 0.0787, T = 296(2) K.
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Affiliation(s)
- Shi-Hui Li
- 1College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, Henan Province, P.R. China
| | - Yan Zhao
- 2College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, Henan Province, P.R. China
| | - Li Zhang
- 1College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, Henan Province, P.R. China
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42
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Novel bioinspired acetato-bridged dinuclear nickel(II)-Schiff-base complex: Catechol oxidase and in vitro biological activity studies. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.08.047] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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43
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Karaoğlu K, Emirik M, Menteşe E, Zengin A, Serbest K. Acetate bridged dinuclear Cu(II) complexes with ferrocene based benzimidazol ligands: Synthesis, spectroscopy, electrochemistry, DFT calculations and catecholase activity. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.03.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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44
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Catechol oxidase and phenoxazinone synthase: Biomimetic functional models and mechanistic studies. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.11.002] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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45
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Zhao Y, Hu XZ, Li SH. Crystal structure of catena-poly[diaqua-bis(μ 2-5-carboxy-2-(pyridin-4-yl)benzoato-κ 2
O: N)-cobalt(II)]dihydrate, C 26H 24N 2O 12Co. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C26H24N2O12Co, triclinic, P1̅, a = 6.892(3) Å, b = 8.469(4) Å, c = 11.306(5) Å, α = 86.963(6)°, β = 88.691(5)°, γ = 85.404(6)°, V = 694.14(15) Å3, Z = 1, R
gt
(F) = 0.0561, wR
ref
(F
2
) = 0.1319, T = 293(2) K.
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Affiliation(s)
- Yan Zhao
- College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, Henan Province, P. R. China
| | - Xu-Ze Hu
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, Henan Province, P. R. China
| | - Shi-Hui Li
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, Henan Province, P. R. China
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46
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Kar P, Ida Y, Kanetomo T, Drew MGB, Ishida T, Ghosh A. Synthesis of mixed-valence hexanuclear Mn(II/III) clusters from its Mn(II) precursor: variations of catecholase-like activity and magnetic coupling. Dalton Trans 2016; 44:9795-804. [PMID: 25928181 DOI: 10.1039/c5dt00709g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One Mn(II) coordination polymer, [Mn(o-(NO2)C6H4COO)2(pyz)(H2O)]n (1), has been synthesized and oxidized with n-Bu4NMnO4 in non-aqueous media to two mixed-valence hexanuclear Mn(II/III) complexes [MnIII2MnII4O2(pyz)0.61/(MeOH)0.39(o-(NO2)C6H4COO)10·(H2O)·{(CH3)2CO}2]·(CH3)2CO (2) and [MnIII2MnII4O2(pyz)0.28/(MeCN)3.72(o-(NO2)C6H4COO)10·(H2O)] (3) (where pyz = pyrazine). All three complexes were characterized by elemental analyses, IR spectroscopy, single-crystal X-ray diffraction analyses, and variable-temperature magnetic measurements. The structural analyses reveal that complex 1 is comprised of linear chains of pyz bridged Mn(II), which are further linked to one another by syn–anti carboxylate bridges, giving rise to a two-dimensional (2D) net. Complexes 2 and 3 feature mixed valence [MnIII2MnII4] units in which each of the six manganese centres reside in an octahedral environment. Apart from the variations in terminal ligands (acetone for 2 and acetonitrile for 3), the complexes are very similar. Using 3,5-di-tert-butyl catechol (3,5-DTBC) as the substrate, the catecholase-like activity of the complexes has been studied and it is found that the mixed valent Mn6 complexes (2 and 3) are much more active towards aerial oxidation of catechol compared to the Mn(II) complex (1). Variable-temperature (1.8–300 K) magnetic susceptibility measurements showed the presence of antiferromagnetic coupling in all three complexes. The magnetic data have been fitted with a 2D quadratic model derived by Lines, giving the exchange constant J/kB = −0.0788(5) K for 1. For 2 and 3, antiferromagnetic interactions within the Mn6 cluster have been fitted with models containing three exchange constants: JA/kB = −70 K, JB/kB = −0.5 K, JC/kB = −2.9 K for 2 and JA/kB = −60 K, JB/kB = −0.3 K, JC/kB = −2.8 K for 3.
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Affiliation(s)
- Paramita Kar
- Department of Chemistry, University College of Science, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India.
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47
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Sanyal R, Kundu P, Rychagova E, Zhigulin G, Ketkov S, Ghosh B, Chattopadhyay SK, Zangrando E, Das D. Catecholase activity of Mannich-based dinuclear CuII complexes with theoretical modeling: new insight into the solvent role in the catalytic cycle. NEW J CHEM 2016. [DOI: 10.1039/c6nj00105j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Catecholase activity has been explored by combined experimental and theoretical approaches using di-copper(ii) complexes of Mannich-base ligands.
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Affiliation(s)
- Ria Sanyal
- Department of Chemistry
- University of Calcutta
- Kolkata 700009
- India
| | - Priyanka Kundu
- Department of Chemistry
- University of Calcutta
- Kolkata 700009
- India
| | - Elena Rychagova
- G. A. Razuvaev Institute of Organometallic Chemistry RAS
- 603950 Nizhny Novgorod
- Russian Federation
- N. I. Lobachevsky Nizhny Novgorod State University
- 603950 Nizhny Novgorod
| | - Grigory Zhigulin
- G. A. Razuvaev Institute of Organometallic Chemistry RAS
- 603950 Nizhny Novgorod
- Russian Federation
| | - Sergey Ketkov
- G. A. Razuvaev Institute of Organometallic Chemistry RAS
- 603950 Nizhny Novgorod
- Russian Federation
- N. I. Lobachevsky Nizhny Novgorod State University
- 603950 Nizhny Novgorod
| | - Bipinbihari Ghosh
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711103
- India
| | | | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- 34127 Trieste
- Italy
| | - Debasis Das
- Department of Chemistry
- University of Calcutta
- Kolkata 700009
- India
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48
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Datta A, Das K, Mane SB, Mendiratta S, El Fallah MS, Garribba E, Bauzá A, Frontera A, Hung CH, Sinha C. A rare doubly nitrato and phenoxido bridged trimetallic CuII complex: EPR, antiferromagnetic coupling and theoretical rationalization. RSC Adv 2016. [DOI: 10.1039/c6ra10674a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
A new homometallic trinuclear Cu(ii) complex is afforded with a tetradentate Schiff base precursor. Complex 1 manifests a strong antiferromagnetic coupling which is in agreement with EPR and DFT computation to explain the magneto-structural correlation.
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Affiliation(s)
| | - Kuheli Das
- Institute of Chemistry
- Academia Sinica
- Taipei – 115
- Taiwan
- Department of Chemistry
| | | | | | - Mohamed Salah El Fallah
- Departament de Química Inorgànica
- Facultat de Química
- Universitat de Barcelona
- 1-11 08028 Barcelona
- Spain
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia
- Università di Sassari
- I-07100 Sassari
- Italy
| | - Antonio Bauzá
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
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49
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Mitra M, Kundu T, Kaur G, Sharma G, Choudhury AR, Singh Y, Ghosh R. Catecholase and phenoxazinone synthase activities of a ferromagnetically coupled tetranuclear Cu(ii) complex. RSC Adv 2016. [DOI: 10.1039/c6ra11433d] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A crystallographically characterized tetranuclear Cu(ii) complex [CuII4(L)4] (1) [H2L = N-(2-hydroxyethyl)-3-methoxysalicylaldimine] is found to show overall ferromagnetic exchange coupling.
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Affiliation(s)
- Merry Mitra
- Department of Chemistry
- The University of Burdwan
- Burdwan 713 104
- India
| | - Tanay Kundu
- Physical/Materials Chemistry Division
- National Chemical Laboratory
- Pune 411 008
- India
| | - Gurpreet Kaur
- Department of Chemical Sciences
- Indian Institute of Science Education & Research, Mohali
- Mohali 140 306
- India
| | - Gyaneswar Sharma
- Department of Physical Sciences
- Indian Institute of Science Education & Research, Mohali
- Mohali 140 306
- India
| | - Angshuman Roy Choudhury
- Department of Chemical Sciences
- Indian Institute of Science Education & Research, Mohali
- Mohali 140 306
- India
| | - Yogesh Singh
- Department of Physical Sciences
- Indian Institute of Science Education & Research, Mohali
- Mohali 140 306
- India
| | - Rajarshi Ghosh
- Department of Chemistry
- The University of Burdwan
- Burdwan 713 104
- India
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50
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Azido bridge mediated catecholase activity, electrochemistry and magnetic behavior of a dinuclear copper(II) complex of a phenol based “end-off” compartmental ligand. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.07.038] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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