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Co-ordination of copper(II) with monoamino-triols and -tetrols. Effect of stereo-chemistry on complex formation.
Autorzy
Rok wydania
1995
Czasopismo
Journal of the Chemical Society, Dalton Transactions
Strony
2657-2661
DOI
10.1039/DT9950002657
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A series of 4-aminobutanetriols and 5-aminopentanetetrols was synthesised and their co-ordination abilities towards copper(II) studied by potentiometry and spectroscopic techniques (UV/VIS, ESR and CD). The basic binding mode involves the amino nitrogen and the adjacent deprotonated hydroxyl group. The latter donor acts as a bridge between two metal ions giving stable dimeric species. No monomeric complexes were detected in the systems studied. The formation of the alkoxo-bridged complexes seems to be the most characteristic feature of the investigated ligands. Other hydroxyl donors are also involved in the metal-ion binding. The stability constants calculated from the pH-metric data showed that the chirality of the carbons in an aminoalcohol molecule may have a considerable effect on its co-ordination ability.
Adres publiczny
https://doi.org/10.1039/DT9950002657
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