Kotova, O., Blasco, S., Twamley, B., O'Brien, J., Peacock, R. D., Kitchen, J. A., Martínez-Calvo, M. and Gunnlaugsson, T. (2015) The application of chiroptical spectroscopy (circular dichroism) in quantifying binding events in lanthanide directed synthesis of chiral luminescent self-assembly structures. Chemical Science, 6(1), pp. 457-471. (doi: 10.1039/c4sc02474e)
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Publisher's URL: http://dx.doi.org/10.1039/c4sc02474e
Abstract
The binding of asymmetrical and optically pure tridentate ligands (L = 1(S) and 1(R)) containing one carboxylic group and 2-naphthyl as an antenna to lanthanide ions (M = La(III) and Eu(III)) was studied in CH3CN, showing the successive formation of M:L, M:L2 and M:L3 stoichiometric species in solution. The europium complexes EuL3 were also synthesised, structurally characterised and their photophysical properties probed in CH3OH and CH3CN. The changes in the chiroptical properties of both 1(S) and 1(R) were used (by circular dichroism (CD) spectroscopy) to monitor the formation of these chiral selfassemblies in solution. While circularly polarised luminescence (CPL) showed the formation of Eu(1(S))3 and Eu(1(R))3 as enantiomers, with high luminescence dissymmetry factors (glum), fitting the CD changes allowed for binding constants to be determined that were comparable to those seen in the analyses of absorbance and luminescence changes.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Peacock, Dr Robert |
Authors: | Kotova, O., Blasco, S., Twamley, B., O'Brien, J., Peacock, R. D., Kitchen, J. A., Martínez-Calvo, M., and Gunnlaugsson, T. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Chemical Science |
Publisher: | Royal Society of Chemistry |
ISSN: | 2041-6520 |
ISSN (Online): | 2041-6539 |
Copyright Holders: | Copyright © 2015 The Royal Society of Chemistry |
First Published: | First published in Chemical Science 6(1):457-471 |
Publisher Policy: | Reproduced under a Creative Commons License |
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