Exciton coupling of tetra(p-hydroxyphenyl)porphyrin controlled by substituents of counterions in Triton X-100 micellar solution
The interactions of nonionic meso-tetra(p-hydroxyphenyl)porphyrin (THPP) with CX3COOH (X = F, Cl, Br) in Triton X-100 (TX) micellar solution have been investigated by optical absorption, resonance light-scattering, and fluorescence spectroscopies. The double red-shifted absorption bands and strong resonance light scattering (RLS) signal imply that the assemblies induced by trihalo acetic acids belong to J-aggregates. The fluorescence of porphyrin is quenched due to the aggregate formation. The kinetics of assemblies trigged by CBr3COOH is studied via stopped-flow techniques. No characteristics of autocatalyzed reactions are observed, and there is only a log phase. The nature of the exciton coupling of transition dipole moment can be systematically changed by the haloid substituents of the organic counteranion.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2007 |
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| Erschienen: |
2007 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:111 |
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| Enthalten in: |
The journal of physical chemistry. B - 111(2007), 6 vom: 15. Feb., Seite 1502-6 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Xiwen [VerfasserIn] |
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| Themen: |
9002-93-1 |
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| Anmerkungen: |
Date Completed 01.06.2007 Date Revised 21.11.2013 published: Print-Electronic Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM167944215 |
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| LEADER | 01000naa a22002652 4500 | ||
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| 041 | |a eng | ||
| 100 | 1 | |a Li, Xiwen |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Exciton coupling of tetra(p-hydroxyphenyl)porphyrin controlled by substituents of counterions in Triton X-100 micellar solution |
| 264 | 1 | |c 2007 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 500 | |a Date Completed 01.06.2007 | ||
| 500 | |a Date Revised 21.11.2013 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a The interactions of nonionic meso-tetra(p-hydroxyphenyl)porphyrin (THPP) with CX3COOH (X = F, Cl, Br) in Triton X-100 (TX) micellar solution have been investigated by optical absorption, resonance light-scattering, and fluorescence spectroscopies. The double red-shifted absorption bands and strong resonance light scattering (RLS) signal imply that the assemblies induced by trihalo acetic acids belong to J-aggregates. The fluorescence of porphyrin is quenched due to the aggregate formation. The kinetics of assemblies trigged by CBr3COOH is studied via stopped-flow techniques. No characteristics of autocatalyzed reactions are observed, and there is only a log phase. The nature of the exciton coupling of transition dipole moment can be systematically changed by the haloid substituents of the organic counteranion | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 7 | |a Hydrocarbons, Halogenated |2 NLM | |
| 650 | 7 | |a Ions |2 NLM | |
| 650 | 7 | |a Micelles |2 NLM | |
| 650 | 7 | |a Porphyrins |2 NLM | |
| 650 | 7 | |a Solutions |2 NLM | |
| 650 | 7 | |a Surface-Active Agents |2 NLM | |
| 650 | 7 | |a tetraphenylporphyrin |2 NLM | |
| 650 | 7 | |a Octoxynol |2 NLM | |
| 650 | 7 | |a 9002-93-1 |2 NLM | |
| 650 | 7 | |a Acetic Acid |2 NLM | |
| 650 | 7 | |a Q40Q9N063P |2 NLM | |
| 700 | 1 | |a Li, Deijia |e verfasserin |4 aut | |
| 700 | 1 | |a Zeng, Wenfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zou, Guolin |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zhangping |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The journal of physical chemistry. B |d 1997 |g 111(2007), 6 vom: 15. Feb., Seite 1502-6 |w (DE-627)NLM114379831 |x 1520-5207 |7 nnns |
| 773 | 1 | 8 | |g volume:111 |g year:2007 |g number:6 |g day:15 |g month:02 |g pages:1502-6 |
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| 952 | |d 111 |j 2007 |e 6 |b 15 |c 02 |h 1502-6 | ||