Gas-Phase Reactions of ClMn(H2O)+ with Polar and Nonpolar Hydrocarbons in a Mass Spectrometer

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• 作者：Penggao Duan ; Mingkun Fu ; David S. Pinkston ; Steven C. Habicht ; Hilkka I. Kenttä ; maa
• 刊名：Journal of the American Chemical Society
• 出版年：2007
• 出版时间：August 1, 2007
• 年：2007
• 卷：129
• 期：30
• 页码：9266 - 9267
• 全文大小：79K
• 年卷期：v.129,no.30(August 1, 2007)
• ISSN：1520-5126

文摘

The gas-phase reactions of ClMn(H₂O)⁺ with a variety of volatile and nonvolatile, saturated and unsaturated hydrocarbons have been examined by using Fourier transform ion cyclotron resonance mass spectrometry (FT/ICR). The ClMn(H₂O)⁺ ion reacts rapidly by exclusive H₂O ligand displacement with all the hydrocarbons studied, including highly branched alkanes that usually fragment upon ionization. These observations are rationalized on the basis of the electronic structure of ClMn⁺. Collision-activated dissociation of the product ions provides structural information which promises to allow the distinction and structural characterization of isomeric hydrocarbons. These findings suggest that the ClMn(H₂O)⁺ ion is a highly promising chemical ionization reagent for mass spectrometric characterization of hydrocarbons, including those that commonly exist in petroleum