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BF2 complexes of 1,3-diketones on the surface of phosphorus dendrimers: synthesis and study of the photoluminescence properties

Abstract : Difluoroboron complexes of monomeric and dimeric diketones and of generations 0-4 of phosphorus dendrimers ended by diketone ligands are synthesized and characterized. Their photoluminescence properties are measured. All compounds exhibit an intense absorption band in the near UV region. Both model dimers and dendrimers show a marked hypsochromic shift of this absorption band compared with the monomeric difluoroboron complex. The fluorescence of the dioxaborine complex subunit in the multichromophoric dendritic architectures is quenched compared with the emission of the isolated monomeric fluorophore, presumably due to interactions between the terminal groups of dendrimers.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01614761
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, October 11, 2017 - 1:59:51 PM
Last modification on : Thursday, March 5, 2020 - 2:02:56 PM

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Cedric Rouxel, Olivier Mongin, Aurelien Hameau, Armelle Ouali, Mireille Blanchard-Desce, et al.. BF2 complexes of 1,3-diketones on the surface of phosphorus dendrimers: synthesis and study of the photoluminescence properties. Canadian Journal of Chemistry, NRC Research Press, 2017, 95 (9), pp.948-953. ⟨10.1139/cjc-2017-0135⟩. ⟨hal-01614761⟩

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