In order to realize electrostatic Stark deceleration of CH radicals and study cold chemistry, the fifth harmonic of a YAG laser is used to prepare CH(A2△) molecules through using the multi-photon dissociation of(CH3)2CO, CH3NO2, CH2Br2,and CHBr3 at ～ 213 nm. The CH product intensity is measured by using the emission spectrum of CH(A2△→ X2Π). The dependence of fluorescence intensity on laser power is studied, and the probable dissociation channels are analyzed. The relationship between the fluorescence inten...
【英文摘要】
In order to realize electrostatic Stark deceleration of CH radicals and study cold chemistry, the fifth harmonic of a YAG laser is used to prepare CH(A2△) molecules through using the multi-photon dissociation of(CH3)2CO, CH3NO2, CH2Br2,and CHBr3 at ～ 213 nm. The CH product intensity is measured by using the emission spectrum of CH(A2△ → X2Π). The dependence of fluorescence intensity on laser power is studied, and the probable dissociation channels are analyzed. The relationship between the fluorescence inte...
【基金】
Project supported by the National Natural Science Foundation of China(Grant Nos.10674047,10804031,10904037,10904060,10974055,11034002,11274114,and 61205198);
the National Key Basic Research and Development Program of China(Grant Nos.2006CB921604 and 2011CB921602);
the Basic Key Program of Shanghai Municipality,China(Grant No.07JC14017);
the Fundamental Research Funds for the Central Universities;
the Shanghai Leading Academic Discipline Project,China(Grant No.B408)
【更新日期】
2014-08-29
【分类号】
O562.4
【正文快照】
1.IntroductionMethylidyne radical(CH)is the simplest but a very im-portant hydrocarbon.Its discovery in the laboratory can betraced back to the year 1918.[1,2]Due to its active char-acteristics,CH radical is beneficial to research in a broadrange,such as
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