Journal article

Electric field effects in the infrared multiphoton dissociation of chlorodifluoromethane

The IR multiphoton dissocn. of CF2HCl was studied in a d.c. elec. field. The reaction yield was measured as a function of the laser energy fluence, the CF2HCl pressure, and the elec. field strength in the range 0 ? E ? 5.4 kV cm-1. At low fluence (F < 1J cm-2) and intensity, under essentially collision free conditions, the multiphoton dissocn. is strongly enhanced by the elec. field. This is tentatively explained by a breakdown in the angular momentum selection rules caused by the applied field.


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