A shift in the frequency of a spectral band of a chemical species arising from interaction with its solvent environment.
See: bathochromic shift, hypsochromic shift
Source:
PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2274 (https://doi.org/10.1351/pac199668122223)