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Int. J. Mol. Sci. 2011, 12(12), 9095-9107; doi:10.3390/ijms12129095

Intracluster Ion Molecule Reactions Following the Generation of Mg+ Within Polar Clusters

College of Science & General Studies, Alfaisal University, Riyadh 11533, Saudi Arabia
Received: 10 October 2011 / Revised: 11 November 2011 / Accepted: 22 November 2011 / Published: 7 December 2011
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In this work we investigated the intracluster ion molecule reactions following the generation of Mg+ within the polar clusters (water, methanol, ether and acetonitrile), using time of flight mass spectrometry. In the case of Mg+/water and Mg+/methanol, dehydrogenation reactions are observed after the addition of five molecules. However, no dehydrogenation reactions are observed in the case of Mg+/ether or Mg+/acetonitrile clusters. This confirms the role of the H atom in (O–H) in the dehydrogenation reaction, and rules out any contribution from the H atom in the CH3 group. In addition, the magic numbers in the time of flight (TOF) mass spectra of the Mg+Xn clusters (X = H2O, CH3OH, CH3OCH3 and CH3CN) have been investigated. Finally, the role of ground electronic magnesium ion Mg+(2S1/2), and excited electronic magnesium ion Mg+(2P1/2) in the dehydrogenation reaction were investigated using Ion Mobility Mass spectrometry. The results offer direct evidence confirming the absence of the electronically excited, Mg+(2P1/2).
Keywords: solvation; gas phase clusters; time of flight solvation; gas phase clusters; time of flight
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Alsharaeh, E.H. Intracluster Ion Molecule Reactions Following the Generation of Mg+ Within Polar Clusters. Int. J. Mol. Sci. 2011, 12, 9095-9107.

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