The ultrafast dynamics of near-infrared heptamethine cyanine dye in alcoholic and aprotic solvents
文献类型：期刊论文
| 作者 | Zhou, Li-Chuan; Liu, Jian-Yong; Zhao, Guang-Jiu; Shi, Ying; Peng, Xiao-Jun; Han, Ke-Li |
| 刊名 | chemical physics
 |
| 出版日期 | 2007-03-30 |
| 卷号 | 333期号:2-3页码:179-185 |
| 关键词 | the hydrogen bond the heptamethine cyanine dye the intramolecular vibrational redistribution solvation the femtosecond time-resolved stimulated emission pumping fluorescence depletion technique |
| 产权排序 | 1;1 |
| 通讯作者 | 刘建勇 ; 彭孝军 |
| 英文摘要 | the ultrafast dynamics of a synthesized near-infrared heptamethine cyanine dye has been studied in the typical alcoholic and aprotic solvents using the ferntosecond time-resolved stimulated emission pumping fluorescence depletion (fs tr sep fd) technique. the faster decay on the hundreds of the ferritosecond time scale and the slower decay on the order of picosecond are found. the intramolecular vibrational redistribution (ivr) and the ultrafast solvent inertial relaxation should account for the faster decay, while the slower decay is attributed to the diffusive solvent relaxation. the time constants of the slower decay increase with the hydrogen-bonding energy in alcoholic solvent, and the time constants of the slower decay decrease with the dipole moments of the aprotic solvent molecules due to the interactions between the aprotic molecules and the excited dye molecule. (c) 2007 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical ; physics, atomic, molecular & chemical |
| 研究领域[WOS] | chemistry ; physics |
| 关键词[WOS] | femtosecond solvation dynamics ; time-dependent fluorescence ; rism/mode-coupling theory ; polar solvation ; stokes shift ; resolved fluorescence ; stimulated-emission ; charge-transfer ; nonequilibrium solvation ; vibrational-relaxation |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000246060500010 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98609]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Li-Chuan,Liu, Jian-Yong,Zhao, Guang-Jiu,et al. The ultrafast dynamics of near-infrared heptamethine cyanine dye in alcoholic and aprotic solvents[J]. chemical physics,2007,333(2-3):179-185. |
| APA | Zhou, Li-Chuan,Liu, Jian-Yong,Zhao, Guang-Jiu,Shi, Ying,Peng, Xiao-Jun,&Han, Ke-Li.(2007).The ultrafast dynamics of near-infrared heptamethine cyanine dye in alcoholic and aprotic solvents.chemical physics,333(2-3),179-185. |
| MLA | Zhou, Li-Chuan,et al."The ultrafast dynamics of near-infrared heptamethine cyanine dye in alcoholic and aprotic solvents".chemical physics 333.2-3(2007):179-185. |
入库方式： OAI收割
来源：大连化学物理研究所
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