Clusters of boron trichloride molecules undergo 193 nm laser photoionization and mass analysis in a reflectron time-of-flight mass spectrometer.  Only two major series of cluster ions are observed in the mass spectrum.  Cluster ions are mass-selected with a time-based double-pulse mass gate, and both metastable fragmentation and laser photofragmentation (1064, 532, 355 nm) are observed.  Measurement of relative intensities of parent and fragment ions show that BnCl3n+ dissociate more readily than BnCl3n-1+.

Fragmentation of photoionized boron trichloride clusters

243rd National Meeting (2012)

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