Solvated Ion Chemistry Within Acetylene-Acetone Heterocluster Ions: Production ofC7H10O(+) and C6H7O(+) Cyclic Ions via Intracluster Polymerization Reactions

摘要

We report in this communication the cluster ion intensity distributions of the(C2H2)n(C3H60m+ and (C2H2)n(C2H30)m+ cluster ions produced by electron impact ionization of acetylene/acetone heteroclusters. Both of these heterocluster ions display a maximum (magic number) at n = 2. The behavior of this magic number, which is observed only under conditions favoring production of large neutral clusters, is similar to that previously observed by us in the case of ethene clusters Chem. Phys. Lett. 1990, 168, 337). We propose that the observed magic number ions arise as a consequence of the production of the covalently bonded cyclic molecular ions C7H100+ and C6H70+ and C6H70+ by intracluster ion-molecule polymerization reactions.