Affiliation:
1. Department of Basic Science Zagazig Higher Institute of Engineering and Technology Zagazig 44519 Egypt
2. Department of Chemistry Faculty of Science Zagazig University Zagazig 44519 Egypt
3. Ministry of Education Babylon 51001 Iraq
4. School of Agricultural Forestry Food and Environmental Sciences University of Basilicata, Viale dell'Ateneo Lucano 10 Potenza 85100 Italy
Abstract
AbstractNew tranexamic acid (TXA) complexes of ferric(III), cobalt(II), nickel(II), copper(II) and zirconium(IV) were synthesized and characterized by elemental analysis (CHN), conductimetric (Λ), magnetic susceptibility investigations (μeff), Fourier transform infrared (FT‐IR), proton nuclear magnetic resonance (1H‐NMR), ultraviolet visible (UV‐vis.), optical band gap energy (Eg) and thermal studies (TG/DTG and DTA). TXA complexes were established in 1 : 2 (metal: ligand) stoichiometric ratio according to CHN data. Based on FT‐IR and 1H‐NMR data the disappeared of the carboxylic proton supported the deprotonating of TXA and linked to metal ions via the carboxylate group‘s oxygen atom as a bidentate ligand. UV‐visible spectra and magnetic moment demonstrated that all chelates have geometric octahedral structures. Eg values indicated that our complexes are more electro conductive. DTA revealed presence of water molecules in inner and outer spheres of the complexes. DTA results showed that endothermic and exothermic peaks were identified in the degradation mechanisms. The ligand and metal complexes were investigated for their antimicrobial and herbicidal efficacy. The Co(II) and Ni(II) complexes showed antimicrobial activity against some tested species. The obtained results showed a promising herbicidal effect of TXA ligand and its metal complexes particularly copper and zirconium against the three tested plants.