Absorption and fluorescence spectra of 9-anthrol and its chemical species in solution

Absorption and fluorescence spectra of 9-anthrol and its chemical species in solution The absorption, fluorescence, and fluorescence-excitation spectra of 9-anthrol (and/or anthrone) have been observed in various solvents, one of which includes a silicon-aluminium ester (diisobutoxyaluminium triethyl silane[(OBu)2−Al−O−Si−(OEt)3 SAE]). The fluorescence spectra of 9-anthrol shows peak wavelengths at 442 nm in benzene, 454 nm in methanol, 539 nm in triethylamine, and 550 nm in basic solution, which can be assigned to a neutral, a hydrogen-bonded neutral, an ion pair, and an anionic species of 9-anthrol, respectively. In ethanol solution including SAE, on the other hand, a new fluorescence peak appears at 473 nm. This new band originates from a complex formed between 9-anthrol and SAE. The excited-state ion pair is formed through the hydrogen-bonded form in water and the complex form in triethylamine. CNDO/S calculations support the experimental results. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Absorption and fluorescence spectra of 9-anthrol and its chemical species in solution

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Springer Netherlands
Copyright © 1997 by Springer
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
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