caa a22 4500 445327626 CHVBK 20180317142726.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10953-011-9697-z doi (NATIONALLICENCE)springer-10.1007/s10953-011-9697-z Solvatochromism and Preferential Solvation of 4-Pentacyanoferrate 4′-Aryl Substituted Bipyridinium Complexes in Binary Mixtures of Hydroxylic and Non-hydroxylic Solvents [Elektronische Daten] [Raffaello Papadakis, Athanase Tsolomitis] The intense solvatochromic behavior of several pentacyanoferrate complexes with aryl substituted 4,4′-bipyridines acting as ligands, was investigated in six hydroxylic and non hydroxylic solvents using UV-Visible spectroscopy. The metal-to-ligand-charge-transfer bands of the visible spectra of these compounds proved to be markedly affected by solvent polarity. In order to quantify the extent of the observed solvatochromism and reveal the dominant interactions which take place in the cybotactic region, resulting in solvatochromism, the Kamlet-Taft equation was used. This is a multiparametric linear-solvation-energy-relationship (LSER) widely used for the study of solvent effects on various physicochemical properties. Through this analysis it was proved that both specific and non specific interactions contribute to the observed solvatochromism. Furthermore, the preferential solvation of the complex salts was studied in binary solvent mixtures. Solvatochromism was used as the key approach to rationalize solvent-solute and solvent-solvent interactions in the binary solvent mixtures studied. Springer Science+Business Media, LLC, 2011 UV/Vis spectroscopy nationallicence LSER's nationallicence Solvatochromism nationallicence Preferential solvation nationallicence Solvent-solute interactions nationallicence Solvent-solvent interactions nationallicence Papadakis Raffaello Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Athens, Greece aut Tsolomitis Athanase Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Athens, Greece aut Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/6(2011-06-01), 1108-1125 0095-9782 40:6<1108 2011 40 10953 https://doi.org/10.1007/s10953-011-9697-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10953-011-9697-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Papadakis Raffaello Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Athens, Greece aut NATIONALLICENCE 700 1- Tsolomitis Athanase Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., 15780, Athens, Greece aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/6(2011-06-01), 1108-1125 0095-9782 40:6<1108 2011 40 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer