ICCAS OpenIR
Influence of axial coordination on the photophysical property of excited state of zinc porphyrin
Feng, J; Zhang, HJ; Xiang, JF; Ai, XC; Zhang, XK; Xu, GZ; Zhang, JP
2003-04-01
Source PublicationSCIENCE IN CHINA SERIES B-CHEMISTRY
ISSN1006-9291
Volume46Issue:2Pages:137-143
AbstractThe effect of axial ligand 4-N,N-dimethyl aminopyridine (DMAP) on the fluorescence property of the second singlet excited state (S(2)) and first singlet excited state (S(1)) of 5,10,15, 20-tetra(p-methoxyl)phenyl zinc porphyrin has been investigated using steady-state absorption, fluorescence spectroscopy and picosecond time-resolved fluorescence spectroscopy. Hot fluorescence is clearly observed and is then reasonably assigned to the higher vibronic level from S(1) state. A further analysis of fluorescence kinetics results shows that the coordination of DMAP to the zinc ion results in a decrease of hot fluorescence lifetime and an increase of the relative content of hot fluorescence. Similar phenomenon was observed with respects to S(1) fluorescence upon the addition of DMAP in toluene. For a complete understanding of such an effect, a possible mechanism has been put forward and discussed in detail.
KeywordTime-resolved Fluorescence Spectroscopy Axial Ligand Zinc Porphyrin Hot Fluorescence
Indexed BySCI
Language英语
WOS IDWOS:000182042700005
PublisherSCIENCE PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81444
Collection中国科学院化学研究所
Corresponding AuthorFeng, J
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Technique Inst Phys & Chem, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Feng, J,Zhang, HJ,Xiang, JF,et al. Influence of axial coordination on the photophysical property of excited state of zinc porphyrin[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2003,46(2):137-143.
APA Feng, J.,Zhang, HJ.,Xiang, JF.,Ai, XC.,Zhang, XK.,...&Zhang, JP.(2003).Influence of axial coordination on the photophysical property of excited state of zinc porphyrin.SCIENCE IN CHINA SERIES B-CHEMISTRY,46(2),137-143.
MLA Feng, J,et al."Influence of axial coordination on the photophysical property of excited state of zinc porphyrin".SCIENCE IN CHINA SERIES B-CHEMISTRY 46.2(2003):137-143.
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