Bridging the visible: the modulation of the absorption by more than 450 nm

Delbaere, Stéphanie; Vermeersch, Gaston; Frigoli, Michel; Mehl, Georg H.

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.

Citation

Delbaere, S., Vermeersch, G., Frigoli, M., & Mehl, G. H. (2010). Bridging the visible: the modulation of the absorption by more than 450 nm. Organic Letters, 12(18), 4090-4093. https://doi.org/10.1021/ol101672v

• Journal Article Type: Article
• Online Publication Date: Aug 23, 2010
• Publication Date: Sep 17, 2010
• Journal: ORGANIC LETTERS
• Print ISSN: 1523-7060
• Electronic ISSN: 1523-7052
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 12
• Issue: 18
• Pages: 4090-4093
• DOI: https://doi.org/10.1021/ol101672v
• Keywords: Hybrid biphotochromic system; Photochromism; Spectroscopy; Diarylethene
• Public URL: https://hull-repository.worktribe.com/output/396344