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Reactivity boundaries for chemical reactions associated with higher-index and multiple saddles
| Title: | Reactivity boundaries for chemical reactions associated with higher-index and multiple saddles |
| Authors: | Nagahata, Yutaka Browse this author | | Teramoto, Hiroshi Browse this author →KAKEN DB | | Li, Chun-Biu Browse this author | | Kawai, Shinnosuke Browse this author | | Komatsuzaki, Tamiki Browse this author →KAKEN DB |
| Issue Date: | 29-Oct-2013 |
| Publisher: | American Physical Society |
| Journal Title: | Physical review. E |
| Volume: | 88 |
| Issue: | 4 |
| Start Page: | 042923-1 |
| End Page: | 042923-11 |
| Publisher DOI: | 10.1103/PhysRevE.88.042923 |
| PMID: | 24229265 |
| Abstract: | Reactivity boundaries that divide the origin and destination of trajectories are of crucial importance to reveal the mechanism of reactions, which was recently found to exist robustly even at high energies for index 1 saddles [Phys. Rev. Lett. 105, 048304 (2010)]. Here we revisit the concept of the reactivity boundary and propose a more general definition that can involve a single reaction associated with a bottleneck composed of higher-index saddles and/or several saddle points with different indices, where the normal form theory, based on expansion around a single stationary point, does not work. We numerically demonstrate the reactivity boundary by using a reduced model system of the H5+ cation where the proton exchange reaction takes place through a bottleneck composed of two index 2 saddle points and two index 1 saddle points. The cross section of the reactivity boundary in the reactant region of the phase space reveals which initial conditions are effective in making the reaction happen and thus sheds light on the reaction mechanism. |
| Rights: | ©2013 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/54549 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 小松崎 民樹
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