Abstract
The interaction between Tb(III) and several α-hydroxycarboxylic acids has been studied by means of circularly polarized luminescence (CPL) spectroscopy. Complexes having the general formula Tb(DPA)(L) in ratios of 1:2:1 and 1:1:1 were studied (where DPA signifies pyridine-2,6-dicarboxylate) were studied in an attempt to use CPL spectroscopy as a probe of the solution chemistry existing between the Tb/DPA complexes and the chiral hydroxycarboxylic acids. The chiral L ligands used were L-hydroxy-isocaproic acid, L-arginnic acid, L-hydroxyglutaric acid, and D-isocitric acid. All of the ligands were found to bind Tb(III) in a bidentate fashion, except for isocitrate which appeared to be terdentate. Equilibrium quotients for the interaction of the Tb/DPA complexes were calculated from the CPL data.
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© 1982 Plenum Press, New York
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Brittain, H.G. (1982). Optical Activity of Mixed-Ligand Complexes of Tb(III) with Pyridine-2,6-Dicarboxylic Acid and Hydroxycarboxylic Acids. In: McCarthy, G.J., Silber, H.B., Rhyne, J.J., Kalina, F.M. (eds) The Rare Earths in Modern Science and Technology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3406-4_5
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DOI: https://doi.org/10.1007/978-1-4613-3406-4_5
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-3408-8
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