93NEW BARIUM(II) INDOMETHACIN MEDICALCOMPLEX: SYNTHESIS, SPECTROSCOPIC AND BIOLOGICAL DISCUSSIONSHerein this paper dealing with the synthesis, spectroscopic and thermal discussions of Ba(II) indomethacin complex. New [Ba(Indo)2(H2O)4]complexwasstudied using elemental analysis, spectroscopic measurements (infrared, 1H-NMR and electronic). Elemental analysis of the chelates suggests the stoichiometry is 1:2 (metal-ligand). Infrared spectra of this complex agree with the coordination to the central metal atom through the carboxylate group as monodentate fashion. The TGA/DTG analyses of Ba(II) complex was performed. The Ba(II) complex has been screened in vitro against antimicrobial activities.The Ba(II) complex has great antimicrobial assessment than the free indomethacin drugmsrefat@yahoo.comResearch522015Indomethacin,Barium salt,,Chelation,Antimicrobial assessmentsAdel S. MegahedDepartment of Chemistry, Faculty of Science, Taif University, 888 Taif, Kingdom Saudi Arabia.