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题名: The charge transfer mechanism and spectral properties of a near-infrared heptamethine cyanine dye in alcoholic and aprotic solvents
作者: Zhou, Li-Chuan;  Zhao, Guang-Jiu;  Liu, Ji-Feng;  Han, Ke-Li;  Wu, Yun-Kou;  Peng, Xiao-Jun;  Sun, Meng-Tao
通讯作者: 韩克利
关键词: the charge transfer mechanism ;  the hydrogen bond ;  the heptamethine cyanine dye ;  the absorption and fluorescence spectra
刊名: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
发表日期: 2007-04-15
DOI: 10.1016/j.jphotochem.2006.10.027
卷: 187, 期:2-3, 页:305-310
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1101
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The charge transfer mechanism of a synthesized near-infrared (NIR) heptamethine cyanine dye has been studied with 3D real space analysis method. Anew phenomenon about the intramolecular charge transfer (ICT) process is observed: the sulfonate (-SO(3)(-)) groups are mainly concerned with the ICT process. The electrons can transfer from the sulfonate (-SO(3)(-)) groups to the bridgehead amine and the electron-defect conjugated system. And the absorption and fluorescence spectra of the ICT state in alcoholic and aprotic solvents are analyzed. The spectral regularities are explained by the Kamlet and Taft (pi*, alpha, beta) scale and the ICT mechanism. Specific hydrogen-bonding interactions between the solute and solvent are considered to explain the different spectral regularities of the dye in alcoholic and aprotic solvents. (C) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: SOLVATION ENERGY RELATIONSHIPS ;  DENSITY-FUNCTIONAL THEORY ;  PHOTOPHYSICAL PROPERTIES ;  OPTICAL-PROPERTIES ;  AB-INITIO ;  PI-STAR ;  FLUORESCENCE ;  DERIVATIVES ;  CHROMOPHORE ;  ABSORPTION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000245882900023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98523
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China
3.Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

Recommended Citation:
Zhou, Li-Chuan,Zhao, Guang-Jiu,Liu, Ji-Feng,et al. The charge transfer mechanism and spectral properties of a near-infrared heptamethine cyanine dye in alcoholic and aprotic solvents[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2007,187(2-3):305-310.
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