A new phenolate-thiazole derivative (L) has been synthesized and structurally characterized.The chemo-sensing activity of L is detected by the naked eye for the aqueous carbonate anion in the pH range of 4 to 8. The selective 'turn-on' fluorescence occurs through the formation of a stable intermediate L∙CO(1) following the PET mechanism.
View Article and Find Full Text PDFThe perchlorate salt of (4-(4-methoxy phenyl)-2-(2-(1-pyridine-2-yl)ethylidene)hydrazinyl)thiazole () and its metal perchlorate derivatives, namely, [Co()]ClO (), [Mn()](ClO) (), and [Ni()](ClO) (), have been synthesized and characterized through single X-ray crystallography and spectroscopic methods. The ligand crystallizes in a space group 2/ in a nearly planar structure. The overall geometry of the complex salts is described as a distorted octahedron with a MN chromophore.
View Article and Find Full Text PDFThe reactions between 2-(pyridine-2-ylmethoxy)-benzaldehyde (L) and various primary amines furnish tridentate (L1 to L3) and tetradentate (L4) chelating ligands. The choice of different primary amines in the condensation reaction incorporates the chiral carbon atom in L2 and L3. A series of mononuclear cobalt(II) complexes, [Co(L1)(Cl)] (1), [Co(L2)(Cl)]·CHCN (2), [Co(L3)(Cl)] (3), and [Co(L4)(N)] (4) are synthesized in the pure crystalline state from the resulting solution of cobalt(II) chloride and/or azide and respective ligand.
View Article and Find Full Text PDFA novel non-enzymatic peroxide sensor has been constructed by using nickel oxide (NiO) thin films as sensing material, which were prepared by a two-step process: (i) electrodeposition of nickel sulfide (NiS) and (ii) thermal air oxidation of as-deposited NiS to NiO. The resultant material is highly porous and comprises interconnected nanofibers. UV-Vis spectroscopy, FTIR spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) were used for a complete characterization of nanostructured NiO thin films.
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