상세정보
학술지
Charge Interactions of Water Soluble Oxo-Titanium(IV) Porphyrinswith CTAC and SDS micelles
- 발행일
- 201310
- 출처
- Journal of Photochemistry and Photobiology A : Chemistry, v.270, pp.7-13
- ISSN
- 1010-6030
- 출판사
- Elsevier
- 협약과제
- 13SE1900, 뉴런 및 수용체와 반도체 소자의 하이브리드 네트워크, 정명애
- 초록
- 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 TiIV 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. © 2013 Elsevier B.V.
- KSP 제안 키워드
- Axial ligand, Cationic micelles, Pure water, Raman bands, Raman spectroscopy, SDS micelles, Surfactant micelles, Transient absorption spectroscopy, Triplet state, Water solution, Water-soluble