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Aggregation phenomena in photobicyclised pyridinium salts

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2017
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Aracena, A.
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Aggregation phenomena in photobicyclised pyridinium salts
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  • Aracena, A.;
  • Rezende, M. C.;
  • Encinas, M. V.;
  • Vergara, C.;
  • Vásquez, S. O.;
Abstract
The possible formation of aggregates in a solution of two planar heterocyclic salts, 2-phenylbenzo[8,9]quinolizino[ 4,5,6,7-fed] phenanthridinylium tetrafluoroborate (PQPBF(4)) and thienyl-substituted 2-phenylbenzo[ij]pyrido[2,1,6-de] dithieno[3,2-b: 2',3'-g] quinolizin-13-ium perchlorate (BPDTQClO(4)), was investigated in organic solvents and in water, by the analysis of their UV-Vis and fluorescence spectra. The results provided evidence for the formation of H-aggregates in water, a conclusion supported by theoretical calculations of the transition energies of the cationic monomers (PQP(+) and BPDTQ(+)) and of the dicationic p-stacked H-dimers in water.
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FONDECYT 3140573
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Artículo de publicación ISI
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URI: https://repositorio.uchile.cl/handle/2250/148312
DOI: 10.1039/c7nj02788e
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New Journal of Chemistry Vol. 41 (23): 14589-14594
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