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Donor-substituted distyrylpyrazines: influence of steric congestion on UV–Vis absorption and fluorescence

✍ Scribed by Christoph Wink; Heiner Detert


Book ID
112175600
Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
473 KB
Volume
26
Category
Article
ISSN
0894-3230

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The absorption spectra and emission spectra of 4-substituted 2H-1-benzo/napthopyran-2-ones 3a-l have been determined in THF and DMSO. The substituent at the 4-position of the 2H-benzo/napthopyran-2-one, establishes a compact conjugation pathway in which the pyran-2-one nucleus can act as an acceptor