期刊
ORGANIC LETTERS
卷 12, 期 18, 页码 4090-4093出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol101672v
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资金
- Region Nord-Pas de Calais (France)
- Ministere de la Jeunesse de l'Education Nationale et de la Recherche (MJENR)
- Fonds Europeens de Developpement Regional (FEDER)
- EPSRC (UK)
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.
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