Abstract
The perturbation of the racemic equilibrium of luminescent D3 lanthanide(III) complexes by added chiral agents, such as amino acids, may be a useful technique for determining the absolute configuration of the added species. It is shown in this work, however, that simple interpretation of the equilibrium shift of racemic tris-terdentate complexes of Tb(III) with 2,6-pyridine-dicarboxylate by amino acids, as measured by the sign of the resultant circularly polarized luminescence (CPL) in terms of specific structural characteristics is not possible. CPL results for a number of derivatized amino acids are also presented, and some insights into the nature of the chiral discriminatory forces that might be exploited in this kind of study are discussed.
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Muller, G., Riehl, J.P. Use of Induced Circularly Polarized Luminescence (CPL) from Racemic D3 Lanthanide Complexes to Determine the Absolute Configuration of Amino Acids. J Fluoresc 15, 553–558 (2005). https://doi.org/10.1007/s10895-005-2828-4
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DOI: https://doi.org/10.1007/s10895-005-2828-4