NEW TETRAPROPYLAMMONIUM TETRABROMOZINCATE COMPLEX [(C3H7)4N]2ZnBr4(II)- SYNTHESIS, SPECTRAL, THERMAL CHARACTERIZATION AND ANTIOXIDANT ACTIVITY

The importance of the A2BX4 complex (A = bivalent ion, NH4+ and its alkyl radical derivatives; B = bivalent transition metal ion and X = halogen) has increased in recent years due to fascinating physical properties such as ferro elastic, ferroelectric, and corresponding - unequal phases at low temperatures. In modern technologies the use of transistors, ferromagnetic garnets, sensor systems, softener templates, and ultraviolet light, as well as IR solid-state lasers, efficient crystalline materials are expected. A slow evaporation approach at room temperature was used to grow the TPAPBr-Zn [(CH3CH2CH2)4N]2ZnBr4(II) challenging kind A2BX4. Elemental analysis, powder diffraction, differential thermal analysis, FT-IR, proton and carbon-13 NMR spectroscopic techniques are used to characterize the synthesized compound. The presence of chemical groups and methylene radical groups in the compound are confirmed by the FT-IR spectra. The presence of an N-propyl group in the molecule is indicated by the nuclear magnetic resonance spectra. Thermogram of the compound reveals two-stage decomposition showing endo followed by exothermic decomposition resulting zinc oxide as an end product. As synthesised compound shown significant inhibitory activity towards free radical.