Pyrrolopyrrole Cyanine Dyes: A New Class of Near??Infrared Dyes and Fluorophores

…, I Göttker??Schnetmann, E Daltrozzo…

Index: Fischer, Georg M.; Isomaki-Krondahl, Magnus; Gottker-Schnetmann, Inigo; Daltrozzo, Ewald; Zumbusch, Andreas Chemistry - A European Journal, 2009 , vol. 15, # 19 p. 4857 - 4864

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Citation Number: 72

Abstract

Abstract NIRer there: Pyrrolopyrrole cyanine (PPCys) dyes, a new class of near-infrared (NIR) fluorophores, are obtained by condensation of heteroarylacetonitrile and diketopyrrolopyrrole compounds (see picture). Complexation with BF 2 or BPh 2 yields strongly fluorescent, photostable NIR dyes that show high absorption cross-sections and fluorescence quantum yields. Furthermore, alteration of the heterocycle can tune the main ...