Department of Physics, Ben-Gurion University, Beer Sheva 84105, Israel.
J Phys Chem A. 2010 Sep 16;114(36):9623-7. doi: 10.1021/jp912107h.
The probability of hydrogen atom release, following photoexcitation of methylamine, CH(3)NH(2), 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.
在激发甲胺（CH(3)NH(2)）后，氢原子释放的概率随着第一激发电子态上更高振动态的进入而广泛增加。这种行为与基于激发势能表面上 H 原子隧穿概率的理论计算一致，表明 N-H 键的断裂主要由量子隧穿决定。
