Solute-solvent and solvent-solvent interactions in the preferential solvation of 4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide in 24 binary solvent mixtures

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Tharly BevilaquaVanderlei G Machado

Abstract

The molar transition energy (E(T)) polarity values for the dye 4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide were collected in binary mixtures comprising a hydrogen-bond accepting (HBA) solvent (acetone, acetonitrile, dimethyl sulfoxide (DMSO), and N,N-dimethylformamide (DMF)) and a hydrogen-bond donating (HBD) solvent (water, methanol, ethanol, propan-2-ol, and butan-1-ol). Data referring to mixtures of water with alcohols were also analyzed. These data were used in the study of the preferential solvation of the probe, in terms of both solute-solvent and solvent-solvent interactions. These latter interactions are of importance in explaining the synergistic behavior observed for many mixed solvent systems. All data were successfully fitted to a model based on solvent-exchange equilibria. The E(T) values of the dye dissolved in the solvents show that the position of the solvatochromic absorption band of the dye is dependent on the medium polarity. The solvation of the dye in HBA solvents occurs with a very important contribution from ion-dipole interactions. In HBD solvents, the hydrogen bonding between the dimethylamino group in the dye and the OH group in the solvent plays an important role in the solvation of the dye....Continue Reading

References

Aug 17, 2001·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·N Ghoneim
Apr 11, 2003·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Samy A el-Dalyel-Sayed A el-Sherbini
Mar 24, 2004·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Tharly BevilaquaVanderlei G Machado

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Citations

Aug 15, 2014·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Zuzana BarbierikováVlasta Brezová
Dec 25, 2012·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Ysaías J AlvaradoGladys Ferrer-Amado
Sep 29, 2011·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Olajire A Adegoke
Aug 6, 2008·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Fabíola M TestoniVanderlei G Machado
Jul 14, 2016·Physical Chemistry Chemical Physics : PCCP·Rafaela I StockVanderlei G Machado
Sep 13, 2014·Chemical Reviews·Vanderlei G MachadoChristian Reichardt
Sep 19, 2008·Chemistry Central Journal·Muhammad A RaufMuhammad Khattab
Aug 27, 2009·The Journal of Physical Chemistry. B·Nélson NunesRuben Elvas Leitão
Dec 15, 2010·The Journal of Physical Chemistry. B·Mallika PanigrahiBijay K Mishra
Apr 30, 2020·ACS Applied Materials & Interfaces·Tian TianWenping Hu

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