Solvatochromism in binary solvent mixtures. Response models to the chemical properties of reference probes

Autor:	A. del C. Prez, L. R. Vottero, Claudia G. Adam, Pedro M. E. Mancini
Rok vydání:	2000
Předmět:	Solvent Absorption spectroscopy Computational chemistry Chemistry Organic Chemistry Solvatochromism Nucleophilic substitution Solvation Polar Organic chemistry Physical and Theoretical Chemistry Solvent effects Acceptor
Zdroj:	Journal of Physical Organic Chemistry. 13:221-231
ISSN:	1099-1395 0894-3230
DOI:	10.1002/(sici)1099-1395(200004)13:4<221::aid-poc234>3.0.co;2-1
Popis:	The present work analyzes the solvent effects on the electronic absorption spectra for a set of solvatochromic solutes in several binary mixtures of a polar aprotic hydrogen-bond acceptor solvent with a cosolvent with potential hydrogen-bond donor capability, in terms of preferential solvation models. It compares the response models of the explored mixtures with respect to the chemical properties of the reference probes. It relates the results obtained with the solvatochromic solutes to the solvent effects on an aromatic nucleophilic substitution reaction. It also gives an evaluation of the degree of convergence for the values of a solvent property determined by individual probes, in order to analyze the validity of the solvatochromic indicators for the characterization of mixed solvents. Copyright © 2000 John Wiley & Sons, Ltd.
Databáze:	OpenAIRE
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