Pressure effects on aminonaphthalene dye fluorescence in H2O and D2O
| Autor: | C. J. Mastrangelo, H. W. Offen |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
inorganic chemicals
Heavy water Aqueous solution Inorganic chemistry Biophysics Analytical chemistry Biochemistry Fluorescence Fluorescence spectroscopy Solvent chemistry.chemical_compound chemistry Deuterium Proton transport Kinetic isotope effect Physical and Theoretical Chemistry Molecular Biology |
| Zdroj: | Journal of Solution Chemistry. 9:325-330 |
| ISSN: | 1572-8927 0095-9782 |
| DOI: | 10.1007/bf00651539 |
| Popis: | The pressure dependence of excited-state proton transfer equilibria has been examined for aqueous solutions of several substituted napthalene dyes, in particular 1-dimethylaminonaphthalene-5-sulfonic acid (DANS). The pressure-induced shift in equilibrium is characterized by volume changes spanning the range ΔV*=−18 cm3 mole−1 to ΔV*=+4 cm3-mole−1. A deuterium oxide solvent isotope effect is evident in the pressure response of DANS, leading to a 35% smaller ⋎ΔV*⋎ in D2O relative to H2O. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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