Photodissociation dynamics of ICH2Cl → CH2Cl + I*/I: photofragment translational spectroscopy at 304 and 277 nm.
Photodissociation dynamics of ICH2Cl → CH2Cl + I*/I: photofragment translational spectroscopy at 304 and 277 nm.
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DOI：
10.1039/c5cp06080j
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发表时间：
2016-01
期刊：
影响因子：
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通讯作者：
M. Cheng;Dan Lin;Lili Hu;Yikui Du;Qihe Zhu
中科院分区：
文献类型：
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作者：
M. Cheng;Dan Lin;Lili Hu;Yikui Du;Qihe Zhu
用我们研制的小型飞行时间光碎片平移谱仪，在<1Vcm（-1）的弱加速场下，研究了ICH_2Cl → CH_2Cl + I ~*/I在304和277 nm的光解动力学.在I*（（2）P1/2）通道和I（（2）P3/2）通道的TOF谱和光碎片平移谱（PTS）中，许多峰被分辨或部分分辨。这些解析峰归属于CH 2Cl片段的C-Cl伸缩振动态。CH 2Cl片段的旋转能ER由于其不对称结构而被高度激发。测得ER/ET值约为0.71。在I* 通道中，已经计算了对于每个解析的振动状态，将可用能量Eavl划分为平移能量ET、旋转能量ER和振动能量EV。
The photodissociation dynamics of ICH2Cl → CH2Cl + I*/I at 304 and 277 nm has been investigated with our mini-TOF photofragment translational spectrometer with a weak acceleration field of <1 V cm(-1). Many peaks are resolved or partially resolved in the TOF spectra and the photofragment translational spectra (PTS) of both the I*((2)P1/2) channel and the I((2)P3/2) channel. These resolved peaks are assigned to the C-Cl stretch vibrational states of the CH2Cl fragment. The rotational energy ER of the CH2Cl fragment is highly excited due to its asymmetric structure. The value of ER/ET is measured to be about 0.71. In the I* channel, the partitioning of the available energy Eavl into the translational energy ET, the rotational energy ER, and the vibrational energy EV for each resolved vibrational state has been calculated.