STUDIES ON CHEMICAL-KINETICS OF POSITRONIUM COMPLEX-FORMATION
DU, YM; Zhang TB(张天保); Cao C(曹玔); ZHANG, TB; CAO, C; CHEN, YT; LIANG, JC
刊名CHEMICAL PHYSICS
1993
卷号175期号:2-3页码:311-321
学科分类Chemistry; Physics
DOI10.1016/0301-0104(93)85160-A
通讯作者CIVIL AVIAT INST CHINA,DEPT BASIC SCI,TIANJIN 300300,PEOPLES R CHINA ; TIANJIN RADIO & TV UNIV,DEPT CHEM,TIANJIN 300191,PEOPLES R CHINA ; ACAD SINICA,INST HIGH ENERGY PHYS,DEPT APPLICAT,BEIJING 100080,PEOPLES R CHINA ; NANKAI UNIV,DEPT CHEM,TIANJIN 300071,PEOPLES R CHINA
文章类型Article
英文摘要The complex formation between ortho-positronium and N-(p-substituted-phenyl) glycine (p-RPhG, G = NHCH2COOH; R = NO2, Cl, H, CH3, CH3O) or N-(m-substituted-phenyl) glycine (m-RPhG, R = NO2, Cl) in solutions of 30% (v/v) ethanol-water and 20% (v/v) dioxane-water is discussed. The application of a BaF2 Scintillation counter to a positron annihilation lifetime spectrometer is described. By means of this new type of spectrometer, the complex formation reaction rate constants of ortho-positronium with the glycine derivatives in solutions are determined. The results indicate that the rate constants mainly depend on the conjugation effect at the benzene ring, the induction effects of the substitutes on the phenyl and solvents. There exists a linear free-energy relationship between rate constants and the basicities of N-substituted phenyl glycines in ortho-positronium-glycine complex formation. It means that the transient complex formation of ortho-positronium with molecules is like a general chemical reaction and obeys classical rules.
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Physics
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语种英语
WOS记录号WOS:A1993LX36300009
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/236919
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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DU, YM,Zhang TB,Cao C,et al. STUDIES ON CHEMICAL-KINETICS OF POSITRONIUM COMPLEX-FORMATION[J]. CHEMICAL PHYSICS,1993,175(2-3):311-321.
APA DU, YM.,张天保.,曹玔.,ZHANG, TB.,CAO, C.,...&LIANG, JC.(1993).STUDIES ON CHEMICAL-KINETICS OF POSITRONIUM COMPLEX-FORMATION.CHEMICAL PHYSICS,175(2-3),311-321.
MLA DU, YM,et al."STUDIES ON CHEMICAL-KINETICS OF POSITRONIUM COMPLEX-FORMATION".CHEMICAL PHYSICS 175.2-3(1993):311-321.
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