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利用同步辐射真空紫外光研究了氟里昂134 a(CH2FCF3)的光电离和光解离过程,通过测量各离子的光电离效率曲线,得到了该分子的电离能(12.68±0.04)eV和所有碎片离子的出现势,运用Gaussian-03计算了母体和中性碎片及相应离子的电子态、对称性和能量.结合理论计算结果对离子出现势的理论值和实验值进行了比较,分析了母体离子可能的光解离通道.
The photoionization and photodissociation of freon 134 a (CH2FCF3) were studied by using synchrotron radiation vacuum ultraviolet (UV) light. The ionization energy (12.68 ± 0.04) eV and all fragment ions , The electronic states, symmetries and energies of the parent and neutral fragments and corresponding ions were calculated by Gaussian-03. The theoretic and experimental values of the potential of the ions were compared with the results of theoretical calculations, The light dissociates from the channel.