Liu Chen-Lin, Hsu Hsu Chen, Ni Chi-Kung
Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 10617, Taiwan.
J Chem Phys. 2008 Apr 28;128(16):164316. doi: 10.1063/1.2911692.
The rotational effects in the energy transfer between Kr atoms and highly vibrationally excited naphthalene in the triplet state were investigated using crossed-beam/time-sliced velocity map ion imaging at various translational collision energies. As the initial rotational temperature changes from less than 10 to approximately 350 K, the ratio of vibrational to translational (V-->T) energy transfer cross section to translational to vibrational/rotational (T-->VR) energy transfer cross section increases, but the probability of forming a complex during the collisions decreases. Significant increases in the large V-->T energy transfer probabilities, termed supercollisions, at high initial rotational temperature were observed.
利用交叉束/时间切片速度映射离子成像技术，在不同的平动碰撞能量下，研究了处于三重态的氪原子与高振动激发萘之间能量转移中的转动效应。当初始转动温度从低于10 K变化到约350 K时，振动到平动（V→T）能量转移截面与平动到振动/转动（T→VR）能量转移截面的比值增大，但碰撞过程中形成复合物的概率降低。在高初始转动温度下，观察到了被称为超碰撞的大V→T能量转移概率的显著增加。
