Abstract
A novel method of preparing ions in selected rovibronic states is presented. It is based on pulsed field ionization of long-lived high-n Rydberg states lying just below the different rovibronic energy levels of the ion. The potential of the method is illustrated with the example of hydrogen: A clean population of H2 + ions is prepared in the X 2Σg + (v+ = 2, N+ = 0, 1, 2, 3) states. The method ought to be applicable to the preparation of a wide range of small molecular ions in selected rotational states and opens new possibilities in the study of state-to-state ion-molecule reactions. © 1993 American Institute of Physics.
| Original language | English |
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| Pages (from-to) | 4213-4214 |
| Number of pages | 2 |
| Journal | Journal of Chemical Physics |
| Volume | 99 |
| Publication status | Published - 1 Dec 1993 |