Title of article
Hydrogen bonding properties of DMSO in ground-state formation and optical spectra of 3-hydroxyflavone anion
Author/Authors
Protti، نويسنده , , Stefano and Mezzetti، نويسنده , , Alberto and Cornard، نويسنده , , Jean-Paul and Lapouge، نويسنده , , Christine and Fagnoni، نويسنده , , Maurizio، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
6
From page
88
To page
93
Abstract
We report ground-state formation of 3-hydroxyflavone (3HF) anion in DMSO. According to the literature this process is possible only in hydrogen bonding donor (HBD) solvents. Our results show that a solvent with zero HBD acidity but sufficiently high hydrogen bonding acceptor basicity can also give anion formation. A possible new mechanism is proposed. Furthermore, theoretical calculations show evidence for the formation of a 3HF−···DMSOH+ complex. As 3HF anion is a promising biophysical fluorescent probe, our results can help to understand the factors governing its ground-state formation and how its spectral properties are related to its microenvironment in biological systems.
Journal title
Chemical Physics Letters
Serial Year
2008
Journal title
Chemical Physics Letters
Record number
1925404
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