ICCAS OpenIR
Intermediates produced in the electron-transfer processes of phenothiazine/semiconductor systems
Jian, HH; Xiang, JF; Sun, K; Sun, J; Chen, CP; Zhou, BM; Liu, Y; Xu, GZ
2000-09-01
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume229Issue:1Pages:212-216
AbstractPhenothiazine radical cation PTH+. and phenothiazine dication PTH2+ produced by photoinduced electron transfer in phenothiazine/semiconductor systems have been studied by using ESR, UV-visible absorption, and fluorescence spectroscopic methods, It is found that the PTH+. was generated by electron transfer from (PTH)-P-1* and (PTH)-P-3* to the conduction band of the semiconductors besides PTH+. resulted in the photoionization of PTH as well as PTH2+ produced by electron transfer from PTH+. to the conduction band of the semiconductors successively. Very significant supplementary information provided by UV-visible absorption, ESR, and resonance Raman spectra of PTH+. and PTH2+, which were obtained by oxidation of PTH with lead tetraacetate, not only confirmed the two-step mono-electron-transfer mechanism proposed for interpretation of electron-transfer processes in PTH/semiconductor systems but also demonstrated that the two successive electron-transfer steps were corresponding to the removal of a p-electron at the nitrogen atom and a p-electron at the sulfur atom in the PTH molecule, respectively. Consequently, the nonplanar configuration of the PTH molecule changed into a planar configuration of the PTH2+. (C) 2000 Academic Press.
KeywordPhenothiazine Semiconductor Electron Transfer
Indexed BySCI
Language英语
WOS IDWOS:000088930300026
PublisherACADEMIC PRESS INC
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/75622
Collection中国科学院化学研究所
Corresponding AuthorXu, GZ
Affiliation1.Acad Sinica, Inst Photog Chem, Beijing 100101, Peoples R China
2.Acad Sinica, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Jian, HH,Xiang, JF,Sun, K,et al. Intermediates produced in the electron-transfer processes of phenothiazine/semiconductor systems[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2000,229(1):212-216.
APA Jian, HH.,Xiang, JF.,Sun, K.,Sun, J.,Chen, CP.,...&Xu, GZ.(2000).Intermediates produced in the electron-transfer processes of phenothiazine/semiconductor systems.JOURNAL OF COLLOID AND INTERFACE SCIENCE,229(1),212-216.
MLA Jian, HH,et al."Intermediates produced in the electron-transfer processes of phenothiazine/semiconductor systems".JOURNAL OF COLLOID AND INTERFACE SCIENCE 229.1(2000):212-216.
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