Synthesis and thermal properties of 4,4'-bipyridine adducts of Mn(II), Co(II), Ni(II) and Cu(II) monochloroacetate

The complexes with the empirical formula M(4-bipy)(ClCH2COO)2 ×nH2O (where: 4-bipy=4,4'-bipyridine, L=ClCH2 COO–, M (II)=Mn, Co, Ni, Cu) were prepared and characterized via the IR and electronic (VIS) spectra and conductivity measurements. Thermal decomposition of these compounds was studied. During heating in air dehydration processes occur. The anhydrous compounds decompose at high temperature to oxides. The principal volatile mass fragments correspond to: H2O, CO2, CH3Cl, HCl, Cl2 and other.