Optical and ESR Studies on the Micellar Formation with Surfactant Cu(II)–Porphyrin
摘要:
A new surface-active porphyrin, 1-dodecyl-4-(10,15,20-triphenyl-5-porphinyl)pyridinium bromide, and its copper complex (Cu(II)DPyTPP) were synthesized. In toluene, chloroform and ethanol, a typical ESR hyperfine structure (hfs) ascribable to monomeric Cu(II) porphyrin was observed. In ethanol containing a buffer of pH=7.4, a reversible formation of the micellar colloid which is strongly dependent on the water/ethanol mixing ratio, was confirmed based on mearsurements of ESR line broadening and the splitting of the Soret band.
Optical and ESR Studies on the Micellar Formation with Surfactant Cu(II)–Porphyrin
摘要:
A new surface-active porphyrin, 1-dodecyl-4-(10,15,20-triphenyl-5-porphinyl)pyridinium bromide, and its copper complex (Cu(II)DPyTPP) were synthesized. In toluene, chloroform and ethanol, a typical ESR hyperfine structure (hfs) ascribable to monomeric Cu(II) porphyrin was observed. In ethanol containing a buffer of pH=7.4, a reversible formation of the micellar colloid which is strongly dependent on the water/ethanol mixing ratio, was confirmed based on mearsurements of ESR line broadening and the splitting of the Soret band.
Location and photoionization studies of a series of alkylporphyrin derivatives solubilized in dioctadecyldimethylammonium chloride and dihexadecyl phosphate vesicles