Synthesis and characterization of manganese(II) complexes derived from 2-substituted benzaldehyde semicarbazones and thiosemicarbazones

Department of Chemistry, Meerut College, Meerut-250 001, Uttar Pradesh, India Manuscript received 22 February 2006, revised 7 January 2009, accepted 28 January 2009 The metal complexes of manganese(II) with 2-chlorobenzaldehyde/2-ethoxybenzaldehyde semicarbazone (cbsc, ebsc) and thiosemicarbazone (cbtsc, ebtsc) have been synthesized and characterized by means of various physico-chemical techniques viz. elemental analysis, magnetic moment, infrared and electronic spectral studies. IR spectral studies showed bidentate chelating behaviour of the ligands coordinating through azomethine nitrogen and carbonyl oxygen/ tbioketo sulphur atoms. Magnetic moment of these complexes indicates high spin configuration. The probable structure for all the complexes is proposed here