Charge exchange and cluster formation in an rf Paul trap: Interaction of alkali atoms with C+60

Stuart Pollack, Douglas Cameron, Mordechai Rokni*, Winfield Hill, J. H. Parks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

A Paul ion trap was used to study the formation of clusters under controlled temperature and pressure conditions. Exposure of cold C+60 ions to Li flux leads to the formation of LinC+60 clusters (n = 1-18) occurring by the sequential association of Li atoms. Cluster formation dependence on He pressure displayed a competition between vibrational relaxation and unimolecular dissociation. Collisions with Na, K, Rb and Cs atoms resulted in dissociative charge exchange. Decay rates of C+60 ions resulting from these low-energy charge exchange collisions were consistent with Langevin capture rates.

Original languageEnglish
Pages (from-to)101-108
Number of pages8
JournalChemical Physics Letters
Volume256
Issue number1-2
DOIs
StatePublished - Jun 1996

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