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题名: Generation of singlet oxygen by decomposition of triphenyl phosphite ozonide
作者: Liu, M;  Shen, GL;  Yang, HP;  Sha, GH;  Zhang, CH
关键词: triphenyl phosphite ozonide ;  chemical oxygen-iodine laser ;  singlet oxygen
刊名: CHINESE JOURNAL OF CHEMICAL PHYSICS
发表日期: 2004-04-01
卷: 17, 期:2, 页:113-115
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: This letter reports a study on producing gas-phase O-2(a(1)Delta) by decomposition of triphenyl phosphite ozonide ((C6H5O)(3)Po-3, TPPO3) under a number of reaction conditions. For the first time, the cooperative emission at wavelengths 634 and 703 nm of O-2 (a(1)Delta) generated by TPPO3 decomposition are observed. Specifically, under the condition of catalyzed decomposition by pyridine of TPPO3 solution in CFCl3 at low temperature, the emission spectrum is the same as that from the basic hydrogen peroxide plus chlorine reaction. This shows the feasibility of developing a new source for singlet delta oxygen. However, in the experiments of spontaneous decomposition of solid TPPO3 and thermal decomposition of TPPO3 solution on a high temperature surface, the spectra have a wide emission background around the 634 and 703 nm peaks, which indicates the production of some excited species than O-2(a(1)Delta). Besides, there are about 2% similar to 3% CO and 1.5% similar to 2% CO2 in the gaseous products together with a small amount of insoluble in acetone solid product, which imply that other than the formation of O-2(a(1)Delta) and TPPO by unimolecular decomposition of TPPO3, More complicated reactions may takeplace. The study of the reaction mechanism, the optimization of the expertise of O-2(a(1)Delta) generation by TPPO3 decomposition as wen as measurement of absolute concentration of O-2(a(1)Delta) are under way.
关键词[WOS]: ESTERS
语种: 英语
WOS记录号: WOS:000221229500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139277
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, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Liu, M,Shen, GL,Yang, HP,et al. Generation of singlet oxygen by decomposition of triphenyl phosphite ozonide[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2004,17(2):113-115.
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