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Eur. J. Mass Spectrom. 8, 351 - 357 (2002)
DOI: 10.1255/ejms.520

The generation of low-valence tin derivatives, RSn(I), in the gas-phase by neutralizationreionization mass spectrometry

Dmitri Zagorevskii*
Department of Chemistry, Rensselaer Polytechnic Institute, 209C Cogswell Laboratory, 110 8th Street, Troy, NY 12180, USA. E-mail:
Yang Yuan and C. Michael Greenlief
Department of Chemistry, University of Missouri-Columbia, Columbia, MO 65211, USA
Alexander A. Mommers
Mommers Technologies, Inc., Vanier, Ontario, Canada K1L 6S6

ABSTRACT:
Neutralization-reionization mass spectrometry (NRMS) was applied to the generation and characterization of low-valence Sn(I) derivatives. The observation of recovery signals in the NR mass spectra of RSn+ ions (R=H, Cl, Br, CH3, C2H, C6H5) demonstrated that their neutral counterparts are stable species in the gas-phase with a lifetime of at least 5 μs. According to quantum chemical calculations, a favorable FranckCondon factor may contribute to the stability of RSn neutrals generated in the NR event. The experimental results for tin acetylide and phenyltin are the first examples of the generation of these previously unknown molecular species.

Keywords: tandem mass spectrometry, neutralizationreionization, organometallics, tin derivatives

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