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Papers by ALEJANDRO ANACONA MACIAS
Journal of Inclusion …, 1999
The interaction of lanthanide(III) ions with two N 3 O 2-macrocycles, L 1 and L 2 , derived from ... more The interaction of lanthanide(III) ions with two N 3 O 2-macrocycles, L 1 and L 2 , derived from 2,6-bis(2-formylphenoxymethyl)pyridine and 1,2-diaminoethane has been investigated. Schiffbase macrocyclic lanthanide(III) complexes LnL 1 (NO 3) 3 • xH 2 O (Ln = Nd, Sm, Eu or Lu) have been prepared by direct reaction of L 1 and the appropriate hydrated lanthanide nitrate. The direct reaction between the diamine macrocycle L 2 and the hydrated lanthanide(III) nitrates yields complexes LnL 2 (NO 3) 3 •H 2 O only for Ln = Dy or Lu. The reduction of the Schiff-base macrocycle decreases the complexation capacity of the ligand towards the Ln(III) ions. The complexes have been characterised by elemental analysis, molar conductivity data, FAB mass spectrometry, IR and, in the case of the lutetium complexes, 1 H NMR spectroscopy.
Journal of Inclusion …, 1999
The interaction of lanthanide(III) ions with two N 3 O 2-macrocycles, L 1 and L 2 , derived from ... more The interaction of lanthanide(III) ions with two N 3 O 2-macrocycles, L 1 and L 2 , derived from 2,6-bis(2-formylphenoxymethyl)pyridine and 1,2-diaminoethane has been investigated. Schiffbase macrocyclic lanthanide(III) complexes LnL 1 (NO 3) 3 • xH 2 O (Ln = Nd, Sm, Eu or Lu) have been prepared by direct reaction of L 1 and the appropriate hydrated lanthanide nitrate. The direct reaction between the diamine macrocycle L 2 and the hydrated lanthanide(III) nitrates yields complexes LnL 2 (NO 3) 3 •H 2 O only for Ln = Dy or Lu. The reduction of the Schiff-base macrocycle decreases the complexation capacity of the ligand towards the Ln(III) ions. The complexes have been characterised by elemental analysis, molar conductivity data, FAB mass spectrometry, IR and, in the case of the lutetium complexes, 1 H NMR spectroscopy.