A5001917709- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Magnetism in coordination complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Lanthanide and Transition Metal Complexes
- Metal-Catalyzed Oxygenation Mechanisms
- Crystal structures of chemical compounds
- Molecular Sensors and Ion Detection
- Vanadium and Halogenation Chemistry
- Synthesis and Characterization of Heterocyclic Compounds
- Polyoxometalates: Synthesis and Applications
- Nonlinear Optical Materials Research
- Analytical Chemistry and Sensors
- Electrochemical Analysis and Applications
- Organometallic Compounds Synthesis and Characterization
- Semiconductor materials and interfaces
- MXene and MAX Phase Materials
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Chemical Reaction Mechanisms
- Luminescence and Fluorescent Materials
- Electrochemical sensors and biosensors
- CNS Lymphoma Diagnosis and Treatment
- Metalloenzymes and iron-sulfur proteins
T.K.M. College of Arts and Science
2014
Haldia Institute of Technology
2012-2013
University of Calcutta
2011
Indian Institute of Chemical Biology
2001
University of Rajasthan
1990
A new chelating ligand [4-methyl-2,6-bis-(pyridin-2-yl-hydrazonomethyl)-phenol] (1) was prepared by the condensation of 2-hydrazinylpyridine with 2,6-diformyl-p-cresol. Compound 1 exhibits weak fluorescence due to intramolecular photoinduced electron transfer (PET). The sensor demonstrates Zn(2+)-specific emission enhancement “PET off” process through a 1:1 binding mode metal ion. quantum yield chemosensor is only 0.020, and it increases more than 14-fold (0.280) in presence one equivalent...
A pyridine–pyrazole based fluorescence turn-on chemosensor provides access to selective detection of Al<sup>3+</sup> in solution as well HepG2 living cells.
Two zinc(II) based metal complexes, [Zn(Pymox)Cl2] (1) and [Zn6(Pymox)6(μ2-O)3] (2), where Pymox = 3-[(4,6-dimethyl-pyrimidine-2-yl)-hydrazono]-butan-2-one oxime, have been synthesized characterized by elemental analysis, IR, single crystal X-ray diffraction studies. Single analysis confirms that one of the products is a mononuclear complex another (2) hexanuclear Zn complex. The optical band gap energy in both complexes (3.43 eV 1 2.36 2) from solid state UV measurement explores...
In this manuscript we report the synthesis and X-ray characterization of two new Ni(<sc>ii</sc>) Cu(<sc>ii</sc>) complexes using 2,2′:6′,2′′-terpyridine as a ligand chloride coligand.
A new cobalt(II) coordination polymer 2 with μ1,5 dicyanamide (dca) and a bidentate ligand 3,5-dimethyl-1-(2'-pyridyl)pyrazole (pypz) is prepared in stepwise manner using the newly synthesized one-dimensional linear Co(II) 1 as precursor. The structural thermal characterizations elucidate that more stable complex shows two-dimensional layer feature. Here, atoms dicyanamido bridges are linked by pypz forming macrocyclic chain runs along crystallographic 'c' axis having 'sql' (Shubnikov...
The ditopic ligand PyPzOAP (N-[(Z)-amino(pyridin-2-yl)methylidene]-5-methyl-1-(pyridin-2-yl)-1H-pyrazole-3-carbohydrazonic acid) and the polytopic 2-PzCAP (N′3,N′5-bis[(1E)-1-(pyridin-2-yl)ethylidene]-1H-pyrazole-3,5-dicarbohydrazide) were synthesized in situ by condensation of methyl imino picolinate with 5-methyl-1-(2-pyridyl) pyrazole-3-carbohydrazide 2-acetyl pyridine pyrazole-3,5-dicarbohydrazide respectively. ligands PzOAP (reported earlier, Dalton Trans., 2007, 1229) self-assemble to...
Zn(II) (complex 1), Cd(II) 2), and Hg(II) 3) complexes have been synthesized using a triply protonated tptz (H3tptz3+) ligand characterized mainly by single-crystal X-ray analysis. The general formula of all the is (H3tptz)3+·Cl-·[MCl4]2-·nH2O (where n = 1, 1.5, 1.5 for 2, 3, respectively). crystallographic analysis reveals that anion···π, anion···π+, several hydrogen bonding interactions play fundamental role in stabilization self-assembled architectures turn help to enhance dimensionality...
Two mononuclear cis-dioxovanadium(V) complexes of pyrazole-derived, Schiff-base ligands have been synthesized and characterized. Single crystal X-ray analyses were performed with N ′-[(3-methyl-1H-pyrazole-5-yl)carbonyl]pyridine-2-carbohadrazonamido cis-dioxovanadium(V), {[VO2(PzOAP)] · H2O} (1), 5-methyl-N-[(1E)-1-(pyridin-2-yl)ethylidene]-1H-pyrazole-3-carbohydrazonate {[VO2(PzCAP)]} (2). Both crystallize in monoclinic systems different space groups. Complex 1 crystallizes the group P21/c,...
A new octahedral Ni(<sc>ii</sc>) complex of a protonated 2,4,6-tris(2-pyridyl)-1,3,5-triazine ligand has been synthesized and X-ray analysis exhibited cooperative anion–π H-bonding interactions.