Investigation on the Absolute and Relative Photoionization Cross Sections of Three Potential Propargylic Fuels.

Abstract

Absolute photoionization cross sections for two potential propargylic fuels (propargylamine and dipropargyl ether) along with the partial ionization cross sections for their dissociative fragments are measured and presented for the first time via synchrotron photoionization mass spectrometry. The experimental set-up consists of a multiplexed orthogonal time-of-flight mass spectrometer and is located at the Advanced Light Source facility of the Lawrence Berkeley National Laboratory in Berkeley, California. Data for a third propargylic compound (propargyl alcohol) was taken, however, because of its low signal, due to its weakly bound cation, only the dissociative ionization fragment from the H-loss channel is observed and presented. Suggested pathways leading to formation of dissociative photoionization fragments along with CBS-QB3 calculated adiabatic ionization energies and appearance energies for the dissociative fragments are also presented.

DOI: 10.1002/jms.4023

Cite this paper

@article{Winfough2017InvestigationOT, title={Investigation on the Absolute and Relative Photoionization Cross Sections of Three Potential Propargylic Fuels.}, author={Matthew Winfough and Giovanni Meloni}, journal={Journal of mass spectrometry : JMS}, year={2017} }