TY - JOUR
T1 - In search of the thermo/halochromism of the ET(30) pyridinium-N-phenolate betaine dye
AU - Rezende, Marcos Caroli
AU - Aracena, Andrés
PY - 2012/12
Y1 - 2012/12
N2 - The thermohalochromic behavior of Reichardt's ET(30) betaine - the temperature-dependent variation of its halochromic band in the presence of a cation - was investigated for the first time in NaI solutions of HBD- (methanol, ethanol, 1-propanol, 1-butanol) and non-HBD-solvents (acetonitrile, dimethylformamide) at 15 and 55 °C. The solvent-dependent thermohalochromism of the pyridinium-N-phenolate betaine dye was interpreted in terms of the effect of the temperature on the dye-cation association in solution.
AB - The thermohalochromic behavior of Reichardt's ET(30) betaine - the temperature-dependent variation of its halochromic band in the presence of a cation - was investigated for the first time in NaI solutions of HBD- (methanol, ethanol, 1-propanol, 1-butanol) and non-HBD-solvents (acetonitrile, dimethylformamide) at 15 and 55 °C. The solvent-dependent thermohalochromism of the pyridinium-N-phenolate betaine dye was interpreted in terms of the effect of the temperature on the dye-cation association in solution.
KW - Halochromism
KW - Pyridinium-N-phenolate betaine dyes
KW - Solvatochromism
KW - Thermochromism
KW - Thermohalochromism
UR - http://www.scopus.com/inward/record.url?scp=84865985463&partnerID=8YFLogxK
U2 - 10.1016/j.saa.2012.08.032
DO - 10.1016/j.saa.2012.08.032
M3 - Article
C2 - 22982383
AN - SCOPUS:84865985463
SN - 1386-1425
VL - 98
SP - 18
EP - 22
JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
ER -