Novel fluorescence probes based on 2,6-donor-acceptor-substituted anthracene derivatives.
[reaction: see text] The fluorescence properties of selected derivatives of 6-methoxyanthracene-2-carboxylic acid were studied. The corresponding ester and oxazoline derivatives exhibit a moderate solvatochromism, which is caused by the donor-acceptor interplay. The fluorescence band shift and intensity of oxazoline 1f may be reversibly modulated by protonation or complexation with silver ions; thus, the oxazoline heterocycle serves as a useful substituent with switchable acceptor strength.
Ihmels
H
H
Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany. ihmels@chemie.uni-wuerzburg.de
Meiswinkel
A
A
Mohrschladt
C J
CJ
D000873:Anthracenes / Q000138:chemical synthesis* / Q000737:chemistry; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D013050:Spectrometry, Fluorescence
D000873:Anthracenes; D005456:Fluorescent Dyes