- Investigation on catecholase activity of salen Co(III) octahedral complexes
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We have synthesized three octahedral Co(III) compounds in order to study their catalytic efficiency for the oxidation of 3,5-di-tertiarybutylcatechol (3,5-DTBC) into the corresponding quinone. Among the tested compounds, only one compound, 3 shows the cat
- Mohan, Nithya,Sreejith,Kurup, M.R. Prathapachandra
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- A rare hetero-bimetallic Zn(II)/Ca(II) Schiff base complex: Synthesis, crystal structure, DFT, molecular docking and unveiling antimicrobial activity
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A new hetero-bimetallic Zn(II)/Ca(II) complex, [Zn2(LOMe-pn)2(?1-NCS)2Ca] (1) has been synthesized using a potentially hexadentate N2O4 proligand, H2LOMe-pn
- Bankura, Kalipada,Bhattacharyya, Maitree,Das, Dhiraj,Majumdar, Dhrubajyoti,Mishra, Dipankar,Nag, Sudip,Parai, Debaprasad,Singh, Dheeraj K.
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- Two new hetero-dinuclear nickel(II)/zinc(II) complexes with compartmental Schiff bases: Synthesis, characterization and self assembly
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Two compartmental Schiff bases, H2L1 [N,N′-bis(3-methoxysalicylidene)propane-1,3-diamine] and H2L2 [N,N′-bis(3-methoxysalicylidene)-2,2-dimethylpropane-1,3-diamine], have been utilized to prepare two hetero-dinu
- Bhattacharyya, Anik,Roy, Sourav,Chakraborty, Jhonti,Chattopadhyay, Shouvik
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- Dinuclear mixed valence cobalt(II/III) and hetero-tetranuclear cobalt(III)/Na complexes with a compartmental ligand: Synthesis, characterization and use as catalysts for oxidative dimerisation of 2-aminophenol
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A N2O4 donor compartmental reduced Schiff base ligand, H2L [(2,2-dimethyl-1,3-propanediyl)bis(iminomethylene)bis(6-methoxyphenol)], obtained on 1:2 condensation of 2,2-dimethyl-1,3-propanediamine with ortho-vanillin follow
- Banerjee, Abhisek,Chattopadhyay, Shouvik
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- Synthesis and characterization of three hetero-dinuclear complexes with CuO2M cores (M?=?Na, Hg): Exploration of their phenoxazinone synthase mimicking activity
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Three new hetero-dinuclear complexes, [CuL1Na(NCS)]·0.5H2O (1), [CuL1Na(OClO3)]·0.25H2O (2) and [CuL2HgCl2] (3) {where H2L1 = N,N′-bis(3-ethoxysalicylidene)
- Roy, Sourav,Drew, Michael G.B.,Chattopadhyay, Shouvik
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- A series of hydrogen bond mediated dinuclear nickel(II) complexes with reduced Schiff base ligands: An insight into the nature of their short intermolecular hydrogen bonds
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A series of isostructural centrosymmetric hydrogen bonded dimeric nickel(II) complexes of general formula, [Ni2(HL)2(DMSO)2(H2O)2]X {where H2L = N2O4 donor reduced Sch
- Banerjee, Abhisek,Chandra, Akash Kumar,Chattopadhyay, Shouvik,Drew, Michael G. B.,Frontera, Antonio,Mirdya, Saikat
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- A modern approach for the sensing of aqueous Al(III) ion by Ni(II) Salen-type Schiff base complexes
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In this work, we explore a modern concept of transmetalation (metal exchange) for the effective recognition of aqueous Al(III) ion. Three different Ni(II) salen-type Schiff base complexes with different spacer diimine groups were prepared for the metal ex
- Mohan, Nithya,Sreejith,Begum, P.M. Sabura,Kurup, M.R. Prathapachandra
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- DFT investigations of linear Zn3-type complex with compartmental N/O-donor Schiff base: Synthesis, characterizations, crystal structure, fluorescence and molecular docking
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A linear Zn(II) complex, [Zn3(LOMe-pn)2(?1-NCS)2] (1) containing a N2O2O′2 donor Schiff base, (H2LOMe-pn = N, N-bis(3-methoxysalicylidene)-2, 2-d
- Majumdar, Dhrubajyoti,pal, Tapan kumar,Singh, Dheeraj Kumar,Pandey, Deepak K.,Parai, Debaprasad,Bankura, Kalipada,Mishra, Dipankar
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- Synthesis, spectral characterization, crystal structures, biological activities, theoretical calculations and substitution effect of salicylidene ligand on the nature of mono and dinuclear Zn(II) Schiff base complexes
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Two new zinc(II) Schiff base complexes (Z1 and Z2) are prepared by treating ONNO tetradentate Schiff base ligands (H2L1 = [6,6′-((1E,1′E)-((2,2-dimethylpropane-1,3-diyl)bis(azanylylidene))bis(methanylylidene))bis(2-methoxyphenol)] an
- Adabi Ardakani, Amir,Amiri Rudbari, Hadi,Ashfaq, Muhammad,Behjatmanesh-Ardakani, Reza,Fallah-Mehrjardi, Mehdi,Kargar, Hadi,Munawar, Khurram Shahzad,Sedighi-Khavidak, Samaneh,Tahir, Muhammad Nawaz
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- Phenoxo-bridged dinuclear mixed valence cobalt(iii/ii) complexes with reduced Schiff base ligands: synthesis, characterization, band gap measurements and fabrication of Schottky barrier diodes
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Two homometallic class-I dinuclear mixed valence cobalt complexes, [(N3)CoIIIL1(μ-C6H4(NO2)CO2)CoII(N3)] (1) and [(N3)CoIIIL2/su
- Banerjee, Abhisek,Das, Dhananjoy,Ray, Partha Pratim,Banerjee, Snehasis,Chattopadhyay, Shouvik
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p. 1721 - 1732
(2021/02/16)
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- A manganese(iii) Schiff base complex immobilized on silica-coated magnetic nanoparticles showing enhanced electrochemical catalytic performance toward sulfide and alkene oxidation
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In this study, a novel Mn(iii)-Schiff base complex was synthesized and characterized. The structure of this complex was determined to be a deformed octahedral coordination sphere by single-crystal X-ray diffraction analysis. The Mn(iii)-Schiff base complex was supported on silica-coated iron magnetic nanoparticlesviaaxial coordination by one-step complex anchoring to produce a heterogenized nanocatalyst. After this, the complex was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), and powder X-ray diffraction (XRD). Moreover, atomic absorption spectroscopy was used to determine the amount of the loaded metal. The heterogenized nanocatalyst effectively catalyzed the oxidation of a broad range of sulfides and alkenes with H2O2in the presence of a glassy carbon electrode, applying voltage to the reaction mixture. The results showed that the application of a potential to the reaction mixture could significantly decrease the reaction time when compared with the case of similar chemical oxidation reactions. In addition, an excellent value of turnover frequency (17?750 h-1) was achieved for the electrochemical oxidation of styrene. Moreover, the nanocatalyst showed good recoverability without significant loss of its activity within six successive runs in the electrochemical oxidation of methyl phenyl sulfide and cyclooctene. The electrochemical properties and stability of Fe3O4?SiO2-[MnL(OAc)] were investigated by cyclic voltammetry measurements and chronoamperometry technique.
- Elmi, Bahareh,Jafarian, Majid,Khodaei, Elham,Nafarieh, Parinaz,Rayati, Saeed,Wojtczak, Andrzej
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p. 17026 - 17036
(2020/05/18)
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- Field-induced single molecule magnet behavior of a dinuclear cobalt(ii) complex: A combined experimental and theoretical study
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Two dinuclear cobalt(ii) complexes, [(dmso)CoIIL1(μ-(m-NO2)C6H4COO)CoII(NCS)] (1) and [(dmso)CoIIL2(μ-(m-NO2)C6H4COO)CoII(NCS)] (2) [dmso = dimethylsulfoxide, H2L1 = (2,2-dimethyl-1,3-propanediyl)bis(iminomethylene)bis(6-methoxyphenol) and H2L2 = (2,2-dim
- Banerjee, Abhisek,Banerjee, Snehasis,Benmansour, Samia,Chattopadhyay, Shouvik,Gómez García, Carlos J.
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p. 16778 - 16790
(2020/12/18)
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- Heteronuclear cobalt(III)/sodium complexes with salen type compartmental Schiff base ligands: Methylene spacer regulated variation in nuclearity
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Three heteronuclear cobalt(iii)/sodium Schiff base complexes have been synthesized and characterized by elemental and spectral analysis. The structures of all three complexes have been confirmed by single crystal X-ray analyses. Each of these three comple
- Ghosh, Kousik,Harms, Klaus,Bauzá, Antonio,Frontera, Antonio,Chattopadhyay, Shouvik
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supporting information
p. 331 - 347
(2018/01/12)
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- Ni(II) and V(IV) Schiff base complexes derived from 2,2′-dimethylpropandiamine: the crystal structure, electrochemical properties and catalytic activities in oxidation of sulfides
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Tetradentate Schiff base (H2L) derived from 2,2′-dimethylpropandiamine and its nickel(II) and oxo-vanadium(IV) complexes (NiL, VOL) have been prepared and characterized. The crystal structure of NiL has been determined. The reported structure c
- Rayati, Saeed,Khodaei, Elham,Jafarian, Majid,Bahrami, Arezo,Wojtczak, Andrzej,Kozakiewicz, Anna
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p. 1424 - 1437
(2017/04/06)
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- Distorted square-antiprism geometry of new zirconium (IV) Schiff base complexes: Synthesis, spectral characterization, crystal structure and investigation of biological properties
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A series of zirconium (IV) Schiff-base complexes formulated as [Zr (Lx)2] and [Zr (Lx′)2] were synthesized by reaction of tetradentate salicylaldimine Schiff-base ligands with [Zr (acac)4] in methanol
- Sahraei, Atefeh,Kargar, Hadi,Hakimi, Mohammad,Tahir, Muhammad Nawaz
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p. 576 - 584
(2017/08/29)
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- Dinuclear Zinc Salen Catalysts for the Ring Opening Copolymerization of Epoxides and Carbon Dioxide or Anhydrides
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A series of four dizinc complexes coordinated by salen or salan ligands, derived from ortho-vanillin and bearing (±)-trans-1,2-diaminocyclohexane (L1) or 2,2-dimethyl-1,3-propanediamine (L2) backbones, is reported. The complexes are
- Thevenon, Arnaud,Garden, Jennifer A.,White, Andrew J. P.,Williams, Charlotte K.
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p. 11906 - 11915
(2015/12/30)
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- Cis-Dioxo-molybdenum(VI) Schiff base complexes: Synthesis, crystal structure and catalytic performance for homogeneous oxidation of olefins
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The synthesis of two Mo(VI) tetradentate Schiff base complexes derived from 2,2′-dimethylpropylenediamine and aromatic aldehydes, (MoO 2{hnaphnptn} (1) and MoO2{salnptn(3-OMe)2} (2)) is reported. Full characterization of these complexes was accomplished with elemental analyses, spectroscopic studies (1H NMR, IR, and UV-Vis) and X-ray structure analysis. X-ray crystallography studies reveal that these complexes adopt a distorted octahedral six-coordinate configuration formed by tetradentate Schiff base ligand and two binding oxygen atoms. Catalytic performance of the prepared molybdenum complexes for oxidation of different olefins with tert-butyl hydroperoxide was evaluated. These complexes were found to be an efficient and selective catalyst for the homogeneous oxidation of various olefins. MoO2{salnptn(3-OMe)2} with a methoxy groups on the salicylidene ring of the ligand promote the effectiveness of the catalyst.
- Rayati, Saeed,Rafiee, Nasim,Wojtczak, Andrzej
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p. 27 - 35
(2012/06/15)
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