The solutions of gemini surfactant 1,3-bis(N-hexadecyl-N,N-dimethylammonium)propane dibromide (1) and 1,4-bis(N-hexadecyl-N,N-dimethylammonium) butane dibromide (2) were studied with a solvatochromic probe, 2,6-diphenyl-4-(2,4,6-triphenyl-1-pyridinio)phenoxide, better known as Reichard’s ET-30 dye (3). The solution polarity (ET) was calculated from the wavelength maximum of the lowest-energy, intramolecular charge-transfer pi-pi* absorption band of 3. The obtained results indicate the presence of small clusters, formed by the association between the surfactants and 3.
Spectroscopic Investigations of Gemini Surfactants with Reichard’s ET-30 Dye
LUCHETTI, LUCIANA
2007-01-01
Abstract
The solutions of gemini surfactant 1,3-bis(N-hexadecyl-N,N-dimethylammonium)propane dibromide (1) and 1,4-bis(N-hexadecyl-N,N-dimethylammonium) butane dibromide (2) were studied with a solvatochromic probe, 2,6-diphenyl-4-(2,4,6-triphenyl-1-pyridinio)phenoxide, better known as Reichard’s ET-30 dye (3). The solution polarity (ET) was calculated from the wavelength maximum of the lowest-energy, intramolecular charge-transfer pi-pi* absorption band of 3. The obtained results indicate the presence of small clusters, formed by the association between the surfactants and 3.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
