Quantum Tunneling of Hydrogen Atom in Dissociation of Photoexcited Methylamine

被引：26

作者：

Marom, Ran ^{[1
]}

Levi, Chen ^{[1
]}

Weiss, Tal ^{[1
]}

Rosenwaks, Salman ^{[1
]}

Zeiri, Yehuda ^{[2
]}

Kosloff, Ronnie ^{[3
]}

Bar, Ilana ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

[2] Ben Gurion Univ Negev, Dept Biomed Engn, IL-84105 Beer Sheva, Israel

[3] Hebrew Univ Jerusalem, Dept Phys Chem, IL-91904 Jerusalem, Israel

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2010年 / 114卷 / 36期

基金：

以色列科学基金会;

关键词：

PHOTOFRAGMENT TRANSLATIONAL SPECTROSCOPY; VIBRATIONAL-STRUCTURES; CONICAL INTERSECTIONS; (A)OVER-TILDE STATES; CHEMICAL REACTIONS; GAS-PHASE; PHOTODISSOCIATION; MOLECULES; DYNAMICS; CH3NH2;

D O I：

10.1021/jp912107h

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：

The probability of hydrogen atom release, following photoexcitation of methylamine, CH3NH2, is found to increase extensively as higher vibrational states on the first excited electronic state are accessed. This behavior is consistent with theoretical calculations, based on the probability of H atom tunneling through an energy barrier on the excited potential energy surface, implying that N-H bond breaking is dominated by quantum tunneling.

引用

页码：9623 / 9627

页数：5

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