Abstract
Four new anhydrous veleriat complexes [M(C5H9O2)(2)] and [Th(C5H9O2)(4)] [where C5H9O2 is the valerate anion and M = UO2(II), ZrO(II), and VO(II) central metal ions] have been prepared and fully characterized by elemental analysis, molar conductivity, UV-Vis, IR, Raman, and H-1 NMR spectroscopy, thermal analyses (TGA/DSC), and ESR for vanadyl(II) valerate complex. Kinetic thermodynamic parameters of the valerate complexes have been calculated using both Horowitz-Metzger (HM) and Coats-Redfern (CR) methods. The spectral data have indicated the coordination via two oxygen atoms of the carboxylate group as a bidentate chelate agent. Thermal degradation of the anhydrous valerate complexes starts with the release of the valerate anion molecules.