Frontiers in the spectroscopy of mass-selected molecular ions

Recent developments have made it possible to produce a variety of novel ion ic molecular species and to study their spectroscopy. In this article, new ion production schemes and/or modified ion sources for these experiments ar e discussed, as are various mass spectrometry configurations used for mass selection. New kinds of ions and new forms of sensitive and selective spect roscopy in the ultraviolet, visible, and infrared wave:length regions for t hese ions are also reviewed. (C) 2000 Elsevier Science B.V.