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Please use this identifier to cite or link to this item: http://purl.org/purl/4004

Title: Synthesis, characterization and physiochemical information, along with antimicrobial studies of some metal complexes derived from an ON donor semicarbazone ligand
Authors: Prathapachandra Kurup, M R
Suma, S
Sudarsana Kumar, M R
Siji, V L
Keywords: Benzaldehyde
Semicarbazone
1H and 13C NMR
EPR studies
Antimicrobial studies
Issue Date: 26-Feb-2010
Publisher: Elsevier
Abstract: Eight new transition metal complexes of benzaldehyde-N(4)–phenylsemicarbazone have been synthesized and characterized by elemental analyses, molar conductance, electronic and infrared spectral studies. In all the complexes, the semicarbazone is coordinated as neutral bidentate ligand. 1H NMR spectrum of [Zn(HL)2(OAc)2] shows that there is no enolisation of the ligand in the complex. The magnetic susceptibility measurements indicate that Cr(III), Mn(II), Fe(III), Co(II) and Cu(II) complexes are paramagnetic and Ni(II) is diamagnetic. The EPR spectrum of [Mn(HL)2(OAc)2] in DMF solution at 77K shows hyperfine sextet with low intensity forbidden lines lying between each of the two main hyperfine lines. The g values calculated for the [Cu(HL)2SO4] complex in frozen DMF, indicate the presence of unpaired electron in the dx2−y2 orbital. The metal ligand bonding parameters evaluated showed strong in-plane bonding and in-plane bonding. The ligand and complexes were screened for their possible antimicrobial activities.
Description: Spectrochimica Acta Part A 76 (2010) 22–28 doi:10.1016/j.saa.2010.02.035
URI: http://dyuthi.cusat.ac.in/purl/4004
Appears in Collections:Dr. M.R.Prathapachandra Kurup

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