Abstract
The dissociative capture of slow electrons by tetrachlorethylene (C2Cl4) has been investigated by resonant electron capture negative ion mass spectrometry. Metastable ions with fractional mass numbers 7.5, 17.5, and 19 corresponding to the C2Cl4− → Cl− + C2Cl3 and Cl2− → Cl− + Cl decays occurring at the microsecond timescale have been detected. It has been revealed that Cl2− anions, which are fragment ions, can dissociate at the microsecond timescale, which is very surprising for a system with one internal degree of freedom. This process is assumingly attributed to the rotational excitation of Cl2− anions. Thus, the experimental estimate of the time of rovibronic relaxation in the Cl2− anion has been obtained.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
