Abstract
The dependence of the fragmentation of (CO 2) N +· cluster ions ( N⩽10) on stagnation pressure and cluster size was studied by supersonic expansion of CO 2 and mass analysis of the ions generated by electron impact. Phase transitions within the clusters are evidenced and rationalized with a simple kinetic model of the evaporation and bond-dissociation reactions. The ions (CO 2) N−2 O 2 +· are most probably formed by an intracluster ion/molecule reaction. The high abundances of ions (CO 2) 3,4 X +· (X = O, CO) indicate pronounced stabilities of these cluster ions.
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Schedule a callMore From: International Journal of Mass Spectrometry and Ion Processes
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