Abstract:

Research on the gas-phase radical/ion chemistry was briefly summarized. Emphasis was given to the application of mass spectrometric technique to ionmolecule reactions between halocarbocations and aromatic compounds which gave rise to chlorobenzenes as one of the targeted products. That chlorobenzenes were readily formed in the mass spectrometer implied that chlorobenzenes in the atmosphere should not exclude the possibility of ion/radical chemistry reactions. The environmental significance of such reactions was also explored.

Key words: chlorobenzenes, mass spectrometry, gas phase ion-molecule reactions