Characterization of photoinduced isomerization and intersystem crossing of the cyanine dye Cy3
文献类型：期刊论文
| 作者 | Jia, Ke; Wan, Yan; Xia, Andong; Li, Shayu; Gong, Fangbin; Yang, Guoqiang |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY A
 |
| 出版日期 | 2007-03-08 |
| 卷号 | 111期号:9页码:1593-1597 |
| ISSN号 | 1089-5639 |
| DOI | 10.1021/jp067843i |
| 英文摘要 | Several important photophysical properties of the cyanine dye Cy3 have been determined by laser flash photolysis. The triplet-state absorption and photoisomerization of Cy3 are distinguished by using the heavy-atom effects and oxygen-induced triplet -> triplet energy transfer. Furthermore, the triplet-state extinction coefficient and quantum yield of Cy3 are also measured via triplet-triplet energy-transfer method and comparative actinometry, respectively. It is found that the triplet -> triplet (T-1 -> T-n) absorptions of trans-Cy3 largely overlap the ground-state absorption of cis-Cy3. Unlike what occurred in Cy5, we have not observed the triplet-state T-1 -> T-n absorption of cis-Cy3 and the phosphorescence from triplet state of cis-Cy3 following a singlet excitation (S-0-S-1) of trans-Cy3, indicating the absence of a lowest cis-triplet state as an isomerization intermediate upon excitation in Cy3. The detailed spectra of Cy3 reported in this paper could help us interpret the complicated photophysics of cyanine dyes. |
| 语种 | 英语 |
| WOS记录号 | WOS:000244530300004 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/62823]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xia, Andong |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Photochem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Ke,Wan, Yan,Xia, Andong,et al. Characterization of photoinduced isomerization and intersystem crossing of the cyanine dye Cy3[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2007,111(9):1593-1597. |
| APA | Jia, Ke,Wan, Yan,Xia, Andong,Li, Shayu,Gong, Fangbin,&Yang, Guoqiang.(2007).Characterization of photoinduced isomerization and intersystem crossing of the cyanine dye Cy3.JOURNAL OF PHYSICAL CHEMISTRY A,111(9),1593-1597. |
| MLA | Jia, Ke,et al."Characterization of photoinduced isomerization and intersystem crossing of the cyanine dye Cy3".JOURNAL OF PHYSICAL CHEMISTRY A 111.9(2007):1593-1597. |
入库方式： OAI收割
来源：化学研究所
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