Elaborated studies for the ligitional behavior of thiouracil derivative towards Ni(II), Pd(II), Pt(IV), Cu(II) and UO2+2 ions

► A new series of complexes was prepared using different metal ions with a new derivative of thiouracil. ► The complexes were investigated using all valuable spectral and chemical tools. ► ESR spectrum of Cu(II) complex displays axially symmetric g tensor parameters indicating the square-planar geometry. ► The biological effect of all investigated compounds was studied on different microorganisms.