Determination of absolute photoionization cross-sections of alkanes and cyclo-alkanes

Zhongyue Zhou; Lidong Zhang; Mingfeng Xie; Zhandong Wang; Dongna Chen; Fei Qi

doi:10.1002/rcm.4523

Determination of absolute photoionization cross-sections of alkanes and cyclo-alkanes

Rapid Commun Mass Spectrom. 2010 May 15;24(9):1335-42. doi: 10.1002/rcm.4523.

Authors

Zhongyue Zhou¹, Lidong Zhang, Mingfeng Xie, Zhandong Wang, Dongna Chen, Fei Qi

Affiliation

¹ National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, PR China.

PMID: 20391606
DOI: 10.1002/rcm.4523

Abstract

Absolute photoionization and dissociative photoionization cross-sections of eleven n-alkanes (n-pentane, n-hexane, n-heptane, n-nonane, n-decane, n-undecane, n-dodecane, n-tridecane, n-tetradecane, n-pentadecane and n-hexadecane), three cyclo-alkanes (cyclopentane, methylcyclohexane and trans-decahydronaphthalene) and iso-octane were measured for photon energies from the ionization thresholds to 11.5 eV. The measurements were performed with the binary-liquid-mixture method utilizing the photoionization cross-sections of benzene as a calibration standard. The ionization energies of n-alkanes and cyclo-alkanes were also calculated at the B3P86/6-31 + +G(d,p) level and by the G3B3 method.