COMPLEX-FORMATION BETWEEN WATER-SOLUBLE PORPHYRIN AND CATIONIC SURFACTANT BELOW THE CRITICAL MICELLE CONCENTRATION

Authors
HINOUE T KOBAYASHI J OZEKI T WATARAI H
Citation
T. Hinoue et al., COMPLEX-FORMATION BETWEEN WATER-SOLUBLE PORPHYRIN AND CATIONIC SURFACTANT BELOW THE CRITICAL MICELLE CONCENTRATION, Chemistry Letters, (8), 1997, pp. 763-764
Citations number
11
Categorie Soggetti
Chemistry
Journal title
Chemistry Letters → ACNP
ISSN journal
03667022
Issue
8
Year of publication
1997
Pages
763 - 764
Database
ISI
SICI code
0366-7022(1997):8<763:CBWPAC>2.0.ZU;2-7
Abstract
It was found that a visible absorption spectrum of 5, 10, 15, 20-tetra phenyl-21H, 24N-porphinetetrasulfonic acid (TPPS) drastically changes with concentration of cetyltrimetyl-ammonium bromide (CTAB). This spec tral change is due to the successive complex formation between them in aqueous solution (pH 7). The formation constants were determined by a pplying a factor analysis with equilibrium constraints (FAEC) to the s pectra of TPPS solutions with different concentrations of CTAB.