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| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 19일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-193 |
| Subject |
Excited-state proton transfer of 2-naphthol-6,8-disulfonate in various reverse micelle environments |
| Authors |
Su-Hyun Kang, Han Gook Cho*, Byeong-Seo Cheong*
Department of Chemistry, Incheon National University, Korea
|
| Abstract |
The excited-state proton transfer (ESPT) reaction of 2-naphthol-6,8-disulfonate, a photoacid dye, has been studied in several different reverse micellar solutions formed from various cationic, anionic, and nonionic surfactants. Fluorescence emission was observed from the protonated and deprotonated forms of 2-naphthol-6,8-disulfonate, and the degree of ESPT reaction in the reverse micelle was estimated by observing the fluorescence emission intensity ratio of the two bands. The reverse micelles contain a small water environment, with the amount of water usually denoted by the W0 value. The fluorescence intensity ratios were measured as a function of the W0 for each reverse micelle studied, and the effects of adding long-chain alcohols as a co-surfactant or adding salts were also investigated. The observed behaviors were discussed in terms of interactions of the dye in the water pool. |
| E-mail |
amma1001@naver.com |
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122nd General Meeting of the KCS