Abstract: New complexes of cobalt(II) and cadmium(II) have been synthesized in the reaction mixture of metals(II) acetate and 4-hydroxy-2-oxo-2H-chromene-3-carboxamide. Diaquabis(4-hydroxy-2-oxo-2H-chromene-3-carboxamidato) cobalt(II) and dihidrokso(4-hydroxy-2-oxo-2H-chromene-3-carboxamide) cadmium(II) were characterized by elemental analysis, IR spectroscopy and ESI mass spectrometry. Elemental analysis and mass spectrometry data of the complexes suggests the stoichiometry is 1:2 (metal-ligand). The results are in accordance with an octahedral environment around the Co(II) ion and tetragonal for cadmium ion.
Dije Dehari, Muhamet Shehabi, Shefket Dehari and Sevdije Govori, 2013. New Complexes of Co(II) and Cd(II) Using 4-Hydroxy-2-Oxo-2H Chromene-3-Carboxamide as Ligand. Research Journal of Applied Sciences, 8: 112-115.