Branching ratios in activated systems

被引：55

作者：

Craig, SL ^{[1
]}

Zhong, ML ^{[1
]}

Choo, B ^{[1
]}

Brauman, JI ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT CHEM,STANFORD,CA 94305

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 1997年 / 101卷 / 01期

关键词：

D O I：

10.1021/jp961665j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Branching between reaction channels in activated systems is often observed to vary with changes in the potential energy surface as Delta ln(k(1)/k(2)) proportional to Delta(Delta E(1)(double dagger) - Delta E(2)(double dagger)). RRKM calculations demonstrate that in many, but not all, cases the log-linear relationship accurately describes branching in nonthermal distributions of reactants with energies well above the threshold for reaction. The origin of this relationship and conditions necessary for its validity can be understood in terms of quantum RRK theory.

引用

页码：19 / 24

页数：6

共 25 条

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[Anonymous], THEORET EXPTL CHEM

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