Abstract

Gulrez Nizami

DOI : http://dx.doi.org/10.13005/ojc/290440

The Schiff bases 5-methyl2-hydroxyacetophenonemorpholine-N-thiohydrazide, 5-methyl2-hydroxyacetophenoneantipyrine 5-chloro2-hydroxyacetophenonemorpholine-N-thiohydrazone has reacted with MnII and MnIII to form co-ordination compounds having general formula [M (C₁₄H₁₉O₂N₃S) 3H₂O] Cl; [M (C₁₄H₁₉O₂N₃S).3H₂O]; [M (C₂₀H₂₀N₃O₂) ₂] Cl; [M (C₂₀H₂₀N₃O₂) ₂];[M(C₁₃H₁₄O₂N₃SCl).3H₂O]Cl and [M(C₁₃H₁₄O₂N₃SCl].3H₂ O] respectively. Where M=Mn III and Mn II. The adducts have been characterized on the basis of elemental analyses molar conductance, I.R , visible spectra, magnetic susceptibility measurement and TGA. The ligands behave  in dibasic tridentate manner in 5-methyl2-hydroxyacetophenonemorpholine-N-thiohydrazone and 5-chloro2-hydroxyacetophenonemorpholine-N-thiohydrazone.While5-methyl2hydroxyacetophenoneantipyrine behaves in monobasic tridentate manner. All these compounds are paramagnetic in nature and have octahedral geometry.

coordination compounds; molar conductance and magnetic susceptibility.

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