N-Methyl-4,4'-bipyridinium and N-Methyl-N'-oxide-4,4'-bipyridinium Bismuth Complexes - Photochromism and Photoluminescence in the Solid State (Articolo in rivista)

Type
Label
  • N-Methyl-4,4'-bipyridinium and N-Methyl-N'-oxide-4,4'-bipyridinium Bismuth Complexes - Photochromism and Photoluminescence in the Solid State (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/ejic.201201233 (literal)
Alternative label
  • Toma, O. ; Mercier, N. ; Botta, C. (2013)
    N-Methyl-4,4'-bipyridinium and N-Methyl-N'-oxide-4,4'-bipyridinium Bismuth Complexes - Photochromism and Photoluminescence in the Solid State
    in European journal of inorganic chemistry (Print); Wiley-VCH Verlag, GmbH., Weinheim (Germania)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Toma, O. ; Mercier, N. ; Botta, C. (literal)
Pagina inizio
  • 1113 (literal)
Pagina fine
  • 1117 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 7 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Oksana Toma, Nicolas Mercier, Université d'Angers Chiara Botta ISMAC-CNR (literal)
Titolo
  • N-Methyl-4,4'-bipyridinium and N-Methyl-N'-oxide-4,4'-bipyridinium Bismuth Complexes - Photochromism and Photoluminescence in the Solid State (literal)
Abstract
  • Three bismuth complexes based on N-methyl-4,4'-bipyridinium (hMV(+)), (hMV)[Bi(hMV)Cl-5] (1), and N-methyl-N'-oxide-4,4'-bipyridinium (MVO+), [Bi(MVO)X-4(dmso)]center dot dmso [X = Cl (2), Br (3)], are reported. All three compounds show luminescence in the solid state with maxima at 545 nm (yellow for 1) and 560 nm (orange for 2 and 3) with quantum yields up to 10 %. Upon UV irradiation, 1 undergoes a color change from white to blue accompanied by a reduction of the photoluminescence intensity. The analysis of the crystal structure of the three complexes points to a photoinduced charge-transfer (PICT) process at the origin of the photochromism in 1. (literal)
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