Molecular Mass Determination of Saturated Hydrocarbons: Reactivity of eta-5-Cyclopentadienylcobalt Ion (CpCo. +) and Linear Alkanes up to C-30

Published

January 1, 2003

Author(s)

H M. Byrd, Kathleen M. Flynn, D P. Ridge

Abstract

The present study demonstrates the feasibility of the h⁵-cyclopentadienylcobalt ion (CpCo +) as a suitable cationization reagent for saturated hydrocarbons analysis by mass spectrometry. Ion/molecule reactions of CpCo + and three medium chain-length n-alkanes were examined using Fourier-transform ion cyclotron resonance mass spectrometry. Second-order rate constants and reaction efficiencies were determined for the reactions studied. Loss of two hydrogen molecules from the adduction was found to dominate all reactions (≥80 %). Furthermore, this dehydrogenation reaction efficiency increases with increasing chain length. These initial results suggest that the CpCo + ion may be a promising cationization reagents of longer chain saturated hydrocarbons and polyethylenes.

Citation

Journal of the American Society for Mass Spectrometry

Volume

14

Issue

No. 1

Pub Type

Journals

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Keywords

chemical ionization, FTMS, organometallic chemistry, polyolefins, saturated hydrocarbons

Citation

Byrd, H. , Flynn, K. and Ridge, D. (2003), Molecular Mass Determination of Saturated Hydrocarbons: Reactivity of eta-⁵-Cyclopentadienylcobalt Ion (CpCo. +) and Linear Alkanes up to C-30, Journal of the American Society for Mass Spectrometry, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852072 (Accessed October 18, 2025)