Abstract
Several novel phosphinoxide ligands have been obtained, based on molecular scaffolds: pyridine, 2,2′-bipyridine, cavitands, cyclotriphosphazene and 1,3,5-triazine. These compounds form highly luminescent complexes with Eu(III) and Tb(III). Particularly good luminescent properties were observed in case of cyclotriphosphazene, pyridine and 2,2′-bipyridine ligands with photoluminescence quantum yields approaching 25%. Cavitand-based phosphinoxides turned out to be rather poor sensitizers for the lanthanide ion emission. Particularly long emission lifetime was observed in case of pyridine P-oxide complexes of Eu(III) and Tb(III), exceeding 3 ms.
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Pietraszkiewicz, M., Kłonkowski, A., Staniszewski, K. et al. Novel Ligands Incorporating Phosphinoxide Groups as Particularly Efficient Sensitizers for Lanthanide Emission. Journal of Inclusion Phenomena 49, 61–67 (2004). https://doi.org/10.1023/B:JIPH.0000031114.68469.e7
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DOI: https://doi.org/10.1023/B:JIPH.0000031114.68469.e7