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题名: Study on gas phase collisional deactivation of O-2(a(1)Delta g) by alkanes and alkenes
作者: Wang, Junhui1;  Leng, Jing1;  Yang, Heping1;  Sha, Guohe1;  Zhang, Cunhao1
刊名: JOURNAL OF CHEMICAL PHYSICS
发表日期: 2013-01-14
DOI: 10.1063/1.4774402
卷: 138, 期:2
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: Systematic measurements were made on the deactivation rate constants (k(Delta)) of O-2(a(1)Delta) by homologous series of gaseous n-alkanes and 1-alkenes by using our recently developed quasi-static method. The results indicate that the k(Delta) values for alkanes are in direct proportion to the number of C-H bonds (N-CH) in the molecules, while those for alkenes are not, but being still linear with NCH, which is in good agreement with Schmidt's E-V energy transfer model. The direct proportion and linearity relationship, respectively, for alkanes and alkenes were well explained in terms of the type and number of their C-H stretching vibrational modes, together with their corresponding vibrational constants. The physical mechanism for the linearity and additivity in Schmidt's model was also discussed in detail. In addition, the k(Delta) values for alkanes were found to be evidently smaller than those for alkenes with the same number of carbon atoms (n) for n < 4, while the situation is quite the contrary for n > 4, which was also rationalized in terms of E-V energy transfer mechanism, together with their respective C-H stretching vibrational modes. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4774402]
关键词[WOS]: SINGLET MOLECULAR-OXYGEN ;  VIBRATIONAL ENERGY-TRANSFER ;  RADIATIONLESS DEACTIVATION ;  SOLVENT MOLECULES ;  CHEMISTRY ;  SYSTEMS ;  STATE ;  DECAY
语种: 英语
WOS记录号: WOS:000313642500041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137480
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:
Wang, Junhui,Leng, Jing,Yang, Heping,et al. Study on gas phase collisional deactivation of O-2(a(1)Delta g) by alkanes and alkenes[J]. JOURNAL OF CHEMICAL PHYSICS,2013,138(2).
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