Quenching rate constants for the removal of SO2(3B1) by various fluorinated olefins
作者： Fred B. Wampler
关键词:
摘要: A competitive technique employing the SO2(3B1) photosensitized isomerization of cis-C2F2H2 to trans-C2F2H2 in presence selected fluorinated olefins has been used at 3712 and 22°C determine quenching rate constants reaction removal. With PSo2 = 25.4 torr Pcis-C2F2H2 0.239 Stern–Volmer plots for M C2H4, C2H2F, 1,1-C2F2H2, C2F4, C3F6 yielded k4 (units 1010 l./mole · sec) values 5.29 ± 0.16, 4.21 0.53, 1.92 0.23, 0.575 0.060, 0.0335 0.0027, respectively. The results were consistent with ability an olefin quench being inversely proportional polarizability olefin's π bond effect can be clearly noted as each H atom C2H4 is individually replaced by F atom.
sci-hub.se 参考文章(8)
Frank A. L. Anet, C. H. Bradley, Buchanan G. W., Direct detection of the axial conformer of methylcyclohexane by 63.1MHz carbon-13 nuclear magnetic resonance at low temperatures Journal of the American Chemical Society. ,vol. 93, pp. 258- 259 ,(1971) , 10.1021/JA00730A048
Fred B. Wampler, The SO2(3B1) photosensitized isomerization of cis- and trans-1,2-dichloroethylene International Journal of Chemical Kinetics. ,vol. 8, pp. 511- 517 ,(1976) , 10.1002/KIN.550080405
Jack G. Calvert, Howard W. Sidebottom, Charles C. Badcock, Blaine R. Rabe, Edward K. Damon, Mechanism of the photolysis of mixtures of sulfur dioxide with olefin and aromatic hydrocarbons Journal of the American Chemical Society. ,vol. 93, pp. 3121- 3128 ,(1971) , 10.1021/JA00742A004
Kenneth L. Demerjian, Jack G. Calvert, The mechanism of the isomerization of cis-2-butene photosensitized by sulfur dioxide excited within the first allowed band at 3130Å International Journal of Chemical Kinetics. ,vol. 7, pp. 45- 62 ,(1975) , 10.1002/KIN.550070107
R.A. Cox, The sulphur dioxide photosensitized cis-trans isomerization of butene-2 Journal of Photochemistry. ,vol. 2, pp. 1- 13 ,(1973) , 10.1016/0047-2670(73)80001-2
Kenneth L. Demerjian, Jack G. Calvert, David L. Thorsell, A kinetic study of the chemistry of the SO2 (3B1) reactions with cis- and trans-2-butene International Journal of Chemical Kinetics. ,vol. 6, pp. 829- 848 ,(1974) , 10.1002/KIN.550060606
Fred B. Wampler, Kiyoshi Otsuka, Jack G. Calvert, Edward K. Damon, The temperature dependence and the mechanism of the SO2 (3B1) quenching reactions International Journal of Chemical Kinetics. ,vol. 5, pp. 669- 690 ,(1973) , 10.1002/KIN.550050417
Fred B. Wampler, The photolysis of SO2 at 3080 Å in the presence of cis- and trans-1,2-difluoroethylene† International Journal of Chemical Kinetics. ,vol. 8, pp. 519- 528 ,(1976) , 10.1002/KIN.550080406