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- W1996301081 abstract "The complex formation between L-mimosine, α-amino-β-(3-hydroxy-4-oxo-1,4-dihydropyridin-1-yl)-propanoic acid, a rare α-amino acid provided with a 3-hydroxypyridin-4(1H)one moiety, and some metal ions — Cu(II), VO(IV), Ni(II) and Zn(II) — was studied by spectroscopic (EPR and electron absorption) and potentiometric techniques in aqueous solution. It was found that L-mimosine prefers the maltol-like donor set of the 3-hydroxypyridin-4(1H)one fragment for binding copper(II) and oxovanadium(IV). However, the presence of two alternative donor centres in the ligand, (COO−, NH2) and (CO, O−), both suitable for chelating behaviour, makes possible the formation of very stable polynuclear species in which the L-mimosine ligand coordinates at both the (CO, O−) maltol-like and the (COO−, NH2) α-aminocarboxylate sites. Nickel(II) interacts with the ligand, but prefers a mixed bonding mode in the bis chelated species. Zn(II) only forms complexes with the 3-hydroxypyridin-4(1H)one fragment." @default.
- W1996301081 created "2016-06-24" @default.
- W1996301081 creator A5042578544 @default.
- W1996301081 date "1999-06-30" @default.
- W1996301081 modified "2023-10-16" @default.
- W1996301081 title "?-Mimosine, an amino acid with maltol-type binding properties toward copper(II), oxovanadium(IV) and other metal ions" @default.
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- W1996301081 doi "https://doi.org/10.1016/s0162-0134(99)80003-8" @default.
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