Abstract
The wavenumbers of the chlorophyll a S 0–S 1 as well as Soret band maxima for 37 solvents were correlated with non-specific [polarity (ε − 1/ε + 2), polarizability ( n 2 − 1/ n 2 + 2)] and specific (electrophilicity, nucleophilicity, steric hindrance to solvation) solute—solvent interaction parameters using multi-parameter linear regression analysis. Besides the dominating influence of the non-specific dispersion interaction with the medium, hydrogen bonding is responsible for both bands' specific red shift of 100–200 cm −1 in protic solvents. The polarizability differences of S 0 and excited states have been evaluated on the basis of universal (non-specific) intermolecular interaction functions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Spectrochimica Acta Part A: Molecular Spectroscopy
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
