solvatochromism

https://doi.org/10.1351/goldbook.S05749
The (pronounced) change in position and sometimes intensity of an electronic absorption or emission band, accompanying a change in the @P04710@ of the medium. Negative (positive) solvatochromism corresponds to a @H02929@ (@B00618@) shift with increasing solvent @P04710@.
See also:
Dimroth–Reichardt ET parameter
,
Z-value
Sources:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1164 [Terms] [Paper]
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2274 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014