Studies Of Derivatization And Transition Metal Complexes Of Herbicidal Compounds Containing N-hetrocyclic Systems

Atrazine (ATA)− a well known herbicide has been derivatized into 2-hydroxylamino-4-rnethylamino-6-isopropylamino-s-triazine (HAATZ). Simazine (SMZ) was derivatized intorn2-hydrazino-4,6-bis(ethylamino)-s-triazine (HSMZ). The physical and spectral datarnconfirmed the formation of HAATA and HSMZ.rnAmitrole (ATA) has been derivatized into 3-(N-Salicylidene) aminotriazole (NSATA).rnSuspension of NSATA in methanol was used to synthesize metal complexes of Co(II),rnNi(II) and Cu(II). They have been characterized on the basis of analytical, magneticrnsusceptibility, coductamce, IR, NMR, UV-VIS spectral studies. The conductivityrnmeasurement studies show the complexes are non electrolytes and no chloride in therncomplexes. Magnetic susceptibility measurement indicated that Co(II) complex isrnparamagnetic while Ni(II) and Cu(II) are diamagnetic. The Schiff base, NSATA behavesrnas neutral bidentate ON donor, with phenolic oxygen and exocyclic nitrogen acting asrnmetal binding sites. An octahedral geometry for Co(II) complex and square planarrngeometry for Ni(II) and Cu(II) complexes are proposed.rnKEY WORDS: Herbicides, Herbicidal Detoxification, Derivatization, Degradation,rns-Triazine, s-Triazole, Atrazine, Simazine, Amitrole, Transition metal complexes, Schiffrnbase, neutral bidentate ON donor, Ligand

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