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Author Prathapachandra Kurup, M. R. ♦ Reena, T. A.
Source CUSAT-Thesis
Content type Text
Publisher ELSEVIER
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Technology
Subject Keyword Semicarbazone ♦ Di-2-pyridyl ketone ♦ Copper(II) complexes ♦ IR spectra ♦ EPR spectra
Abstract Five copper(II) complexes [CuLCl]2·CuCl2·4H2O (1), [CuLOAc] (2), [CuLNO3]2 (3), [CuLN3] (4) and[CuLNCS]·3/2H2O (5) of di-2-pyridyl ketone-N4-phenyl-3-semicarbazone (HL) were synthesized andcharacterized by elemental analyses and electronic, infrared and EPR spectral techniques. In all thesecomplexes the semicarbazone undergoes deprotonation and coordinates through enolate oxygen, azomethineand pyridyl nitrogen atoms. All the complexes are EPR active due to the presence of an unpairedelectron. EPR spectra of all the complexes in DMF at 77K suggest axial symmetry and the presence ofhalf field signals for the complexes 1 and 3 indicates dimeric structures
Education Level UG and PG
Learning Resource Type Article