Charge interactions of water soluble oxo-titanium(IV) porphyrins with CTAC and SDS micelles

Title
Charge interactions of water soluble oxo-titanium(IV) porphyrins with CTAC and SDS micelles
Author(s)
김용희[김용희]정상돈[정상돈]장윤정임찬[임찬]김석규조대원[조대원]
Keywords
HORSERADISH-PEROXIDASE; RAMAN-SPECTROSCOPY; VANADYL PORPHYRIN; RESONANCE RAMAN; PHOTODYNAMIC THERAPY; CATION RADICALS; COMPOUND-I; TETRAPHENYLPORPHINESULFONATE; METALLOPORPHYRINS; SCATTERING
Issue Date
201310
Publisher
ELSEVIER SCIENCE SA
Citation
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v.270, pp.7 - 13
Abstract
The interactions of anionic oxo-titanium (IV) meso-tetrakis(4-sulfonatophenyl)porphyrin and cationic oxo-titanium(IV) meso-tetrakis(1-methylpyridium-4-yl)porphyrin with anionic and cationic micelles were examined by Raman spectroscopy and transient absorption spectroscopy. The Raman bands of O=Ti-IV porphyrins in the presence of surfactants with same charge were similar to those observed in a pure water solution. The characteristic Raman band was observed at 915 cm(-1), which was assigned to the O=Ti stretching mode of the 6-coordinated complex, O=Ti-(H2O) porphyrins. On the other hand, in the presence of oppositely charged surfactants, a markedly up-shifted Raman band was observed at 945 cm-1, which was assigned to the O=Ti stretching mode of a 5-coordinated complex, O=Ti porphyrins. O=Ti porphyrins interact with oppositely charged surfactant micelles by losing the sixth axial ligand (H2O). The 5-coordinate complexes showed a shorter lifetime of the exited triplet state due to the lower lying quenching state. (C) 2013 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/28838http://dx.doi.org/10.1016/j.jphotochem.2013.07.003
ISSN
1010-6030
Appears in Collections:
문과대학 > 중국언어문화학과 > Articles
이과대학 > 화학생화학부 > Articles
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