• S Esthar

      Articles written in Journal of Chemical Sciences

    • A new Mannich base and its transition metal (II) complexes — Synthesis, structural characterization and electrochemical study

      N Raman S Esthar C Thangaraja

      More Details Abstract Fulltext PDF

      A new Mannich base, N-(1-morpholinobenzyl) semicarbazide (MBS), formed by the condensation of morpholine, semicarbazide and benzaldehyde, and its Cu(II), Ni(II), Co(II) and Zn(II) complexes have been synthesized. Their structures have been elucidated on the basis of analytical, magnetic, electrical conductivity and spectral study as well as elemental analyses. The complexes exhibit square-planar geometry. The monomeric and non-electrolytic nature of the complexes is evidenced by their magnetic susceptibility and low conductance data. The electrochemical property of the ligand and its complexes in acetonitrile solution was studied by cyclic voltammetry. The X-band ESR spectra of the Cu(II) complex in DMSO at 300 and 77 K were recorded and their salient features are reported

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