Theoretical study of the complexassion of bivalent ions: Mg2+, Zn2+, Cu2+ and Fe2+ by 4-hydroxy-3-(1-phenylpropyl)-2H-chromen-2-one(HPCO), 4-hydroxy-3-(3-oxo-1-phenylbutyl)-2H-chromen-2-one(HOCO) and 4-hydroy-6-(1-phenylbutan-2-yl)-3-(1-phenylpropyl)-2H-pyran-2-one(HPPO) in water and in ethanol

Trace elements ensure the proper functioning of enzymes. Their theoretical study of complexassion shows that: Iron II is not chelated. Mg 2 + , Zn 2 + and Cu 2 + are chelated by HPCO and HOCO. And HPPO chelates only the Mg 2 + and Zn 2 + . Some of the chelates have become diphenols or are assisting...

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