Synthesis and Spectral Study of Dicarboxylate of Cu (II) and Mn (II) metals with Heterocyclic Nitrogen Bases as Adducts

In the present paper an attempt was made to study dicarboxylate of Cu (II) and Mn (II) metals with heterocyclic Nitrogen bases as adducts in principle for their structure and properties. Salts of Cu⁺⁺ and Mn⁺⁺ and dicarboxylic acids such as oxalic, succinic, Glutaric, Adipic acids were taken in 1:1 proportion and refluxed in heterocyclic bases such as pyridine, Quinoline, β-picoline or Nicotine. After filtration and cooling transition metal carboxylates with adducts of bases of Nitrogen and Nicotine were obtained. All the compounds were analysed by elemental analysis, solubility, magnetic susceptibility, IR, ¹HNMR spectra and thermal analysis. All the synthesized compounds are paramagnetic. IR spectra showed that bonding of dicarboxylic acid to transition metal ion is through oxygen and of heterocyclic base and Nicotine is through Nitrogen.