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Self-Aggregation Behavior of meso-Tetra-(4-trimethylaminophenyl)porphyrin Encapsulated in Reverse Micelles.
- Source :
-
Spectroscopy Letters . May/Jun2010, Vol. 43 Issue 4, p275-281. 7p. 1 Diagram, 8 Graphs. - Publication Year :
- 2010
-
Abstract
- The aggregation behavior of cationic meso-tetra-(4-trimethylaminophenyl)porphyrin (TAPP) was investigated in two reverse micelles (RM) of ionic surfactants, cetyltrimethylammonium bromide (CTAB) and bis(2-ethylhexyl)sulfosuccinate (AOT) using absorption spectroscopy, fluorescence spectroscopy, and resonance light scattering spectroscopy. TAPP showed different types of aggregation upon varying the ratio of water concentration to CTAB concentration, ω0. The charge on the surfactant used to form reverse micelles determines the aggregation of porphyrin. The addition of hydrochloric acid can transform the H-aggregates of TAPP into monomers, while the addition of sodium hydroxide led to J-aggregation. Ionic strength had no significant influence on the aggregation of TAPP. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00387010
- Volume :
- 43
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Spectroscopy Letters
- Publication Type :
- Academic Journal
- Accession number :
- 50038465
- Full Text :
- https://doi.org/10.1080/00387010903334540