Preparation, characterization and H2 storage capacity of newly Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) mixed ligand complexes of paracetamol and saccharine
Deena Sa’ady Mohammed Subhi, Lina Ihsan Khaleel, Mustafa A. Alheety
Abstract
The study includes the synthesis of new paracetamol- (Par) and saccharine- (Sac) containing complexes with the elements; Mn (II), Co (II), Ni (II), Cu (II), Zn (II). These complexes are characterized by elemental analysis (C.H.N), molar conductivity, electronic spectra (UV-Vis), Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H-NMR) and magnetic susceptibility. Based on these measurements, complexes are found to be in the type [M(Par)2(Sac)2(H2O)2]; where M (Ni) II, Co (II), Cu (II), Zn (II), Mn (II) with octahedral geometries. Furthermore, the results demonstrate that both Par and Sac ligands act as mono-dentate ligands through oxygen and nitrogen respectively. Additionally, the susceptibility of a Cu complex to hydrogen uptake was examined after its surface area was investigated by measuring nitrogen adsorption-desorption isotherm. The result proved that this material has good storage capacity but under high pressure.