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Solvent effects on electronic absorption spectra of nitrochlorobenzenes, nitrophenols and nitroanilines—II. Studies in polar solvents

Authors
Journal
Spectrochimica Acta Part A Molecular Spectroscopy
0584-8539
Publisher
Elsevier
Publication Date
Volume
44
Issue
2
Identifiers
DOI: 10.1016/0584-8539(88)80245-9

Abstract

Abstract A general method for estimating the specific solute—solvent interaction energies ( E s) from analysis of solvent effects on electronic absorption spectra has been outlined. The E s values for a number of mono- and disubstituted benzenes in a variety of solvents such as water, alcohols, chloroalkanes, ether and acetonitrile have been estimated and the results are discussed in relation to the interacting groups in the solute and solvent molecules. These interactions, which can be classified as H bonding or EDA type, are mainly electrostatic in nature. These studies indicate that, in the case of disubstituted benzenes, the intramolecular electronic interactions are stronger than the solute—solvent interactions.

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