A5036646088- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- DNA and Nucleic Acid Chemistry
- Molecular Sensors and Ion Detection
- Advanced biosensing and bioanalysis techniques
- Magnetism in coordination complexes
- Metal-Catalyzed Oxygenation Mechanisms
- Carbon dioxide utilization in catalysis
- CO2 Reduction Techniques and Catalysts
- Crystallography and molecular interactions
- Synthesis and Characterization of Heterocyclic Compounds
- Nanoparticle-Based Drug Delivery
- Lanthanide and Transition Metal Complexes
- Vanadium and Halogenation Chemistry
- Metal-Organic Frameworks: Synthesis and Applications
- Protein Interaction Studies and Fluorescence Analysis
- Analytical Chemistry and Sensors
- RNA and protein synthesis mechanisms
- Ionic liquids properties and applications
- Surfactants and Colloidal Systems
- Nitric Oxide and Endothelin Effects
- Photochemistry and Electron Transfer Studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Drug Delivery Systems
Presidency University
2020-2024
Indian Institute of Chemical Biology
2017-2021
East West University
2019
Jadavpur University
2013-2016
Indian Association for the Cultivation of Science
2015-2016
Calcutta Research Group
2014
Two transformed ligands namely 1,3,5-triazapentadienato(imidoylamidinato) and N-(methoxy(pyrimidin-2-yl)(pyrimidine-2-carboxamido)methyl)pyrimidine-2-carboxamide which is the first report that are produced from 2-cyano pyridine/pyrimidine respectively under nickel metal mediation in presence of hydroxyl-amine hydrochloride in-situ...
Two ZnII-based metal organic frameworks (MOFs) [Zn2(L)2(1,2-bis(4-pyridyl)ethane)4]n [(ZnMOF1)] and [Zn2(L)2(1,2-bis(4-pyridyl)ethene)4]n [(ZnMOF2)] have been synthesized crystallographically characterized. Due to the presence of Lewis acidic center Zn basic functional groups (−N═N) in both complex [(ZnMOF2)], it is possible efficiently fix carbon dioxide into epoxides produce biosource cyclic carbonates. Under solvent-free mild reaction conditions (60 °C temperature 1 bar CO2 pressure),...
Our designed and synthesized chemosensor naphthalene based chromenyl derivative (NAC) [1-(3-hydroxy-3 methyl-3H-benzo[f]chromen-2-yl) ethanone] has been used for fast (<30 s, DL = 0.22 ppb) selective detection of N2H4 by a new way via the ring opening followed pyrazole formation giving strong blue fluorescence. The DFT study real application in different water samples along with dipstick method low cost devices have also performed here. Human lung cancer cells (NCI-H460) hydrazinolysis NAC...
A novel di-coordinating rhodamine-based chemosensor, HL with NO donor atoms, selectively and rapidly recognizes Fe<sup>3+</sup> in the presence of all biologically relevant as well toxic metal ions numerous anions also other reactive oxygen nitrogen species.
A Schiff base ligand (H<sub>2</sub>SALNN) exhibits turn-on fluorescence for Al<sup>3+</sup> and Cr<sup>3+</sup> at two distinct wavelengths <italic>via</italic> restricted CN isomerization CHEF.
The multifunctional ligand <bold>NO2-H2SALNN</bold> has been synthesized and employed for the selective fluorometric detection of methanol its interaction with DNA.
The synthesized Schiff base ligand 3-hydroxy-N'-(2-hydroxy-3-methoxybenzylidene)-2-naphthohydrazide (H2NPV) is structurally characterized by single-crystal X-ray diffraction (XRD) and exhibits weak fluorescence in the excited state owing to effect of excited-state-induced proton transfer (ESIPT). However, presence Al3+, ESIPT blocked chelation-enhanced (CHEF) induced because complexation with cations, resulting turn-on emission for Al3+. probe H2NPV selectively detects Al3+ among various...
We have synthesized four mononuclear manganese(<sc>iii</sc>) complexes (<bold>1–4</bold>) of closely related bidentate NO donor Schiff-base ligands, out which three (<bold>2–4</bold>) were structurally characterized.
An oxovanadium complex [VO(sal-<sc>l</sc>-cys)(phen)] (sal-<sc>l</sc>-cys = Schiff base derived from salicylaldehyde and <sc>l</sc>-cysteine; phen 1,10-phenanthroline) has been synthesized characterized by spectroscopic studies (IR, UV-vis, ESI-MS EPR studies).
Urmila Sahaa#, Asma Yasmeen Khana#§, Sutanwi Bhuiyab, Suman Dasb, Gaetano Fiorilloc, Paolo Lombardic & Gopinatha Suresh Kumara*a Biophysical Chemistry Laboratory, Organic and Medicinal Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata 700032, Indiab Department Chemistry, Jadavpur University, Indiac Naxospharma srl, Via G. Di Vittorio, 70, 20026 Novate Milanese, MI, Italy
Abstract A number of new amidooxime based manganese(II) complexes have been synthesized and characterized by single crystal X‐ray diffraction studies as well geometry optimization complex 2 using DFT/B3LYP. All four ( 1‐4 ) are mononuclear having octahedral geometry. DNA binding interaction nuclease activity these compounds were investigated for diverse biomedical applications. The results photophysical indicated that the Mn(II) bind with intercalation mode 1 containing pyrimidine moiety...
The Fe(III) complex [Fe(L)(NO3)(H2O)]+ (1) was prepared using a structurally characterized Schiff base ligand, 1-((pyren-1-ylimino) methyl) naphthalen-2-ol (HL), to develop an optical probe for fluorimetric recognition of DNA. An electrospray ionization-mass spectrometry (ESI-MS) study carried out ascertain the composition 1 and geometry optimized by density functional theory (DFT) calculations. Compared strong intrinsic fluorescence ligand only weakly fluorescent. interaction with DNA...
Two neodymium(III) complexes, [Nd(Phen)(NO3)3(DMF)2] (1) and [Nd(Phen)2(NO3)3] (2) (phen = 1,10-phenanthroline; DMF dimethylformamide), have been synthesized with a view to design artificial luminescent nucleases nuclease mimics. The complexes were characterized by spectroscopic, powder, single crystal XRD studies. as expected, properties. DNA binding studies of both carried out spectroscopic e.g. electronic absorption (UV–Vis), fluorescence emission well viscosity measurements. activity the...
A manganese(II) complex [MnII(HL1)2(Cl)(CH3COO)](1) based on the amidooxime ligand was synthesized and characterized by single-crystal X-ray diffraction studies, elemental analysis, UV–vis, IR spectroscopy. The structural spectral parameters were further supported using DFT/B3LYP. (1) is mononuclear, having an octahedral geometry. interaction of 1 with calf thymus DNA investigated spectroscopic calorimetric techniques. found to interact through groove-binding mode. From isothermal titration...
A new manganese(<sc>ii</sc>) [Mn<sup>II</sup>(DEMP)(NCS)(H<sub>2</sub>O)] (DEMP = Schiff base derived from salicylaldehyde and 2-diethylaminoethylamine) complex has been synthesized characterized. The absorbs light ranging 200–850 nm. Thus, the molecule is capable of harvesting entire range sunlight falling on earth.