摘要
近年来,我们在研究含氟烯烃和烷烃的红外激光诱导氧化和氯化反应的基础上,深入研究了红外激光诱导卤代烷烃的脱卤化氢并生成:CF卡宾和:CFCF卡宾的反应以往的研究往往是根据反应产物推论反应机理,认为在反应过程中存在着卡宾中间体,但在实验中未能直接检测到.Kakimoto曾报道过在流动体系中测到了·F+CHF和·F+CHCl反应中:CHF和:CHCl的激光荧光激发谱,但没有讨论卡宾形成的机理.Hirota在讨论·F+CHF反应时,认为:CHF可能由攫氢过程产生而对于·F+CHCl反应同时生成
The reactions of fluorine atoms with CHF and CHCl have been investigated by molecular beam set-up and laser spectroscopy.The CW dye laser excitation spectra of A~4A"(000)←X~1A’(000)vibronic band of:CHF and A~1A"(050)←X~1A’(000)vibronic band of:CHCl have been measured,Our results indicate that in these systems,in addition to the hydrogen abstraction reactions,radical coupling reactions also occur as shown in equations(1)to(5)of the Chineso text.Forthermore,the chemiluminescence of HF has also been observed in these reactions.These results are valuable for the discussion of laser induced chemical reactive mechanism.
出处
《化学学报》
SCIE
CAS
1988年第1期82-84,共3页
Acta Chimica Sinica
基金
中国科学院科学基金资助的课题
