Broad falloff curves of unimolecular reactions

单分子反应的“宽”衰减曲线。在阐明了CF_3I的热分解机理后，通过监测CF_3和CF_2的紫外吸收，在冲击波中测量了C_2F_5I的单分子解离，并与模拟的衰减曲线进行了比较。对衰减曲线的低压极限和高压极限之间的过渡的中心区域的近似对应于C2F4、C2F5和C2F6的一系列分解。应进行CF3I、C2F5I和C3F7I解离的类似研究，这更符合高压极限。

"Broad" falloff curves of unimolecular reactions. After clarifying the mechanism of the thermal decomposition of CF3I, the unimolecular dissociation of C2F5I is measured in shock waves by monitoring the UV-absorption of CF3 and CF2 and compared with modelled falloff curves. The approximation to the central region of the transition between low- and high-pressure limit of the falloff curve corresponds to a series of decompositions of C2F4, C2F5 and C2F6. Analogous studies of the dissociation of CF3I, C2F5I and C3F7I, which corresponds more to the high-pressure limit, shall be done.