Abstract
A pentaammineazidocobalt(III) complex, [Co(NH3)5N3](MnO4)2XH2O has been synthesized by an one-pot synthesis method. It was characterized by studies such as infrared (IR) and UV-visible spectroscopy. The single crystal X-ray structure analysis revealed that the title complex crystallizes in space group Cc. The cobalt center is six coordinated with slightly octahedral geometry. The supramolecular architecture is also formed by intermolecular N-H…O (anion and H2O) and Mn-O…O-H hydrogen bonds. The binding property of the cation, [Co(NH3)5N3]2+ with the anion, MnO4– has also been determined (in solution phase) with the help of UV-visible spectroscopic titrations. Further, the genotoxic effects of KMnO4, [Co(NH3)5N3]Cl2 and [Co(NH3)5N3](MnO4)2XH2O were studied using Allium cepa root chromosomal aberration assay and it revealed that the genotoxicity of the newly synthesized complex is 1.97–1.76 fold, which is less compared to KMnO4. The order of genotoxic potential has been observed to be KMnO4 > [Co(NH3)5N3](MnO4)2XH2O > [Co(NH3)5N3]Cl2.
Highlights
Potassium permanganate is an exceptionally strong oxidizing agent, violet colored, crystalline, odorless substance and available from any pharmaceutical shop
This paper reports the synthesis, characterization, and single crystal X-ray structure determination of
Under this approach pentaammineazidocobalt(III) chloride and potassium permanganate were reacted in 1:2 molar ratio in hot aqueous medium with the expectation of [Co(NH3)5N3](MnO4)2 complex The violet colored complex, [Co(NH3)5N3](MnO4)2 was formed according to expectation in addition to one lattice water molecule
Summary
Potassium permanganate is an exceptionally strong oxidizing agent, violet colored, crystalline, odorless substance and available from any pharmaceutical shop. Along with its commercial importance KMnO4 is known for its detrimental effects like, if it is orally injected, it may lead to the death of the patient due to tissue contraction, necrosis, and hepatorenal toxicity [8,9] The reason behind this is the oxidative injury from free radicals generated by the absorbed permanganate ion [10,11,12]. To remove or reduce the toxic effects of KMnO4, there is need of a method that is simple, effective, inexpensive, and environmental friendly Keeping this in mind, the pentaammineazidocobalt(III) cation has been explored as an anion binder for permanganate ion in an aqueous medium (green chemistry)
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