Synthesis of Bisisoindolomethene Dyes Bearing Anisole or Ethylthiophene Residues for Red and Near-IR Fluorescence

Autor:	Sébastien Goeb, Gilles Ulrich, Antoinette De Nicola, Raymond Ziessel, Pascal Retailleau
Rok vydání:	2007
Předmět:	chemistry.chemical_compound chemistry Reagent Organic Chemistry chemistry.chemical_element Pyrene Moiety Near ir fluorescence Carbohydrazide Boron Photochemistry Anisole Fluorescence
Zdroj:	Synlett. 2007:1517-1520
ISSN:	1437-2096 0936-5214
DOI:	10.1055/s-2007-982557
Popis:	New difluorobora-diisoindolomethenes dyes were synthesized from carbohydrazide and o-hydroxy-acetophenone derivatives bearing phenyl, p-anisole or ethylthiophene substituents. The nature of the substituents allows modulating the fluorescence from 650 nm to 780 nm. Replacement of the fluoro ligands by ethynyl-aryl residues is feasible using Grignard reagents. Standard fluorescence studies prove that very efficient energy transfer, from the pyrene moiety linked to the boron center to the boradiazaindacene, is effective in providing large virtual Stokes shifts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3644f5a8ae5f65401e8c1a1724b1d6f5 https://doi.org/10.1055/s-2007-982557 Zobrazit plný text záznamu