Self-Aggregation Processes of 1,6-Diphenyl-1,3,5-Hexatriene in Water/Ethanol Mixtures with High Water Percentages

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

This work describes the behavior of 1,6-diphenyl-1,3,5-hexatriene (DPH) in ethanol/water mixtures. The dependence of DPH photophysical properties (absorption and fluorescence emission) on the water percentage in ethanol indicates that DPH undergoes self-aggregation processes in solvent conditions above a critical water content. Evidence such as an additional absorption band, Beer's law deviation, kinetic behavior, and other experimental results obtained from temperature variation and surfactant addition demonstrated the presence of several types of DPH aggregates. Resonance light scattering measurements proved that the aggregate grew in water-rich media by a self-catalyzed process.

Keywords: 1,6-DIPHENYL-1,3,5-HEXATRIENE; DIMER; DPH; EXCITON; RESONANCE LIGHT SCATTERING SPECTROSCOPY; SELF-AGGREGATION

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/10-06161

Affiliations: 1: Departamento de Química, Universidade Estadual de Maringá, Av. Colombo, 5790. Maringá, PR, Brazil. Cep 87.020-900 2: Universidade Camilo Castelo Branco. S. J. Campos, SP, Brazil 3: Departamento de Química, Universidade Estadual de Maringá, Av. Colombo, 5790. Maringá, PR, Brazil. Cep 87.020-900. nhioka@uem.br

Publication date: June 1, 2011

More about this publication?

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more