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Energy dependence of the cross section for alkali—methyl iodide reactions

✍ Scribed by Hyung Kyu Shin

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
387 KB
Volume
45
Category
Article
ISSN
0009-2614

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✦ Synopsis

The dependence of the reaction cross section for all the alkali-methyl iodide reactions on the translationa! ener_q in the range ET = O-40 kcal/mole has been discussed in an idealized collision model of hard-sphere interaction between couiding particles. In aI reactions of the family, the cross section increases sharply with ET showing an Arrhenius-Like positiieener-q dependence for ET just past threshold and then takes a maximum value. The maximum value is largest for the Cs reaction and decreases with the aIkaIi mass except that it slightly increases from Rb to K, and the peak becomes broader as the mass decreases. In the post-maximum region the cross section decreases slowly with ET.

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