溶液中におけるシアニン色素J会合体粒子の会合数 その温度及び濃度依存性
書誌事項
- タイトル別名
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- Association Numbers for Cyanine Dye J-Aggregate Particles in Solution. Their Temperature- and Concentration-Dependence.
- Their Temperature- and Concentration-Dependence
- その温度及び濃度依存性
抄録
Various methods of determining the size of J-aggregates of cyanine dyes are reviewed, with emphasis on two methods, one utilizing the mass action relation between the concentrations of free and J-aggregated dye molecules in solution, and the other utilizing a relation between aggregate size and spectral absorption linewidth based on the theory of exchange narrowing. These methods have been used by the authors for estimating the association numbers n for J-aggregate particles of anionic oxa- and thiacarbocyanine dyes of similar structures, potassium 3, 3'-bis (sulfopropyl)-5, 5'-dipheny1-9-ethyloxacarbocyanine (Dye I) and sodium 3, 3'-bis (sulfopropyl)-5, 5'-dichloro-9-ethylthiacarbocyanine (Dye II). For both dyes, n increased with increasing temperature and tended to decrease with increasing dye concentration. The temperature dependence is explained as a Gibbs-Thomson effect characteristic of polydisperse J-aggregate particles. Concentration dependent n is expected from classical nucleation rate equation, regarding the J-aggregate particles as crystal nuclei.
収録刊行物
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- 日本写真学会誌
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日本写真学会誌 56 (1), 43-49, 1993
社団法人 日本写真学会
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詳細情報
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- CRID
- 1390001206569338240
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- NII論文ID
- 130004099076
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- ISSN
- 18845932
- 03695662
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可