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Phys Rev Lett. 2002 Dec 30;89(27):273002. doi: 10.1103/PhysRevLett.89.273002. Epub 2002 Dec 18.

Gas phase infrared spectroscopy of selectively prepared ions.

Physical review letters

J Lemaire, P Boissel, M Heninger, G Mauclaire, G Bellec, H Mestdagh, A Simon, S Le Caer, J M Ortega, F Glotin, P Maitre

Affiliations

  1. Laboratoire de Chimie Physique (UMR 8000-CNRS), Batiment 350, Université Paris XI, 91405 Orsay Cedex, France.

PMID: 12513202 DOI: 10.1103/PhysRevLett.89.273002

Abstract

The first example of direct structural characterization of polyaromatic ions by coupling a Fourier transform ion cyclotron resonance mass spectrometer with an infrared free-electron laser is presented. Measurement of the IR spectra of selectively prepared ionic reactive intermediates is allowed by the association of the high peak power and wide tunability of the laser with the flexibility of the spectrometer, where several mass selection and ion reaction steps can be combined, as demonstrated in the case of iron cation complexes of hydrocarbons. The present experimental setup opens the way to understanding chemical reaction paths.

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