Effect of solvents on the barrierless reaction in the excited state of cyanine dye
文献类型：期刊论文
| 作者 | Feng, JA; Xiang, JF; Zhang, HJ; Ai, XC; Zhang, JP; Zhang, XK; Xu, GZ |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2003-03-01 |
| 卷号 | 48期号:6页码:526-530 |
| 关键词 | Picosecond Time-resolved Fluorescence Spectroscopy Femtosecond Transient Absorption Technique Barrierless Isomerization |
| ISSN号 | 1001-6538 |
| 英文摘要 | UV-Vis, fluorescence spectroscopy and time resolved spectroscopic technique on picosecond and femtosecond scales have been utilized to investigate the effect of steric hindrance and multiple hydroxyl groups of solvents on the barrierless isomerization in excited state of 3, 3'-di(3-sulfopropyl)thiacyanine triethylaminium salt. The results show that the factors mentioned above may be responsible for a different "short-time behavior" of the bleaching signal on the ground state and nonlinear viscosity dependence of the excited-state lifetime in isopropanol and glycol. These phenomena are distinguished from the situation reported in the long-chained monohydroxyl alcohol solvents. However, the dye molecule still exhibits the analyzing-wavelength dependence of the observed fluorescence lifetime, that is, the fluorescence lifetime increases with the increasing of analyzing-wavelength. The conclusions are in agreement with those drawn from femtosecond upconversion fluorescence experiments and further exemplify the barrierless isomerization model in the excited state. |
| 语种 | 英语 |
| WOS记录号 | WOS:000182036500005 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/81247]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Feng, JA |
| 作者单位 | 1.Chinese Acad Sci, Ctr Mol Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, JA,Xiang, JF,Zhang, HJ,et al. Effect of solvents on the barrierless reaction in the excited state of cyanine dye[J]. CHINESE SCIENCE BULLETIN,2003,48(6):526-530. |
| APA | Feng, JA.,Xiang, JF.,Zhang, HJ.,Ai, XC.,Zhang, JP.,...&Xu, GZ.(2003).Effect of solvents on the barrierless reaction in the excited state of cyanine dye.CHINESE SCIENCE BULLETIN,48(6),526-530. |
| MLA | Feng, JA,et al."Effect of solvents on the barrierless reaction in the excited state of cyanine dye".CHINESE SCIENCE BULLETIN 48.6(2003):526-530. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。