title: Bridging the visible: the modulation of the absorption by more than 450 nm.
abstract: The coexistence of 18 isomers, identified by NMR spectroscopy and gathered into six states with very different absorption properties, is observed upon irradiation with selective wavelengths of a triphotochromic system joining two naphthopyran entities through a dithienylethene bridge. The sequential electronic coupling of photochromic groups resulted in an absorption behavior reaching far into NIR.
authors: Université Lille Nord de France, CNRS UMR 8516, UDSL, Lille, F-59006 Lille Cedex, France. stephanie.delbaere@univ-lille2.fr
authors: Stéphanie
authors: S
authors: Delbaere
authors: Gaston
authors: G
authors: Vermeersch
authors: Michel
authors: M
authors: Frigoli
authors: Georg H
authors: GH
authors: Mehl