@article{b0cb10a35f9647e19551cd8c541a5785,
title = "Vacuum-UV negative photoion spectroscopy of SF5CF3",
abstract = "Ion pair formation, generically described as AB \textbackslash{}(\textbackslash{}rightarrow\textbackslash{}) A\textbackslash{}(\textasciicircum{}+\textbackslash{}) + B\textbackslash{}(\textasciicircum{}-\textbackslash{}), from vacuum-UV photoexcitation of trifluoromethyl sulfur pentafluoride, SF\textbackslash{}(\_5\textbackslash{})CF\textbackslash{}(\_3\textbackslash{}), has been studied by anion mass spectrometry using synchrotron radiation in the photon energy range 10-35 eV. The anions F\textbackslash{}(\textasciicircum{}-\textbackslash{}), F\textbackslash{}(\_2\textbackslash{})\textbackslash{}(\textasciicircum{}-\textbackslash{}) and SF\textbackslash{}(\_X\textbackslash{})\textbackslash{}(\textasciicircum{}-\textbackslash{}) (x = 1-5) are observed. With the exception of SF\textbackslash{}(\_5\textasciicircum{}-\textbackslash{}), the anions observed show a linear dependence of signal with pressure, showing that they arise from ion pair formation. SF\textbackslash{}(\_5\textasciicircum{}-\textbackslash{}) arises from dissociative electron attachment, following photoionization of SF\textbackslash{}(\_5\textbackslash{})CF\textbackslash{}(\_3\textbackslash{}) as the source of low-energy electrons. Cross sections for anion production are put on to an absolute scale by calibration of the signal strengths with those of F\textbackslash{}(\textasciicircum{}-\textbackslash{}) from both SF\textbackslash{}(\_6\textbackslash{}) and CF\textbackslash{}(\_4\textbackslash{}). Quantum yields for anion production from SF\textbackslash{}(\_5\textbackslash{})CF\textbackslash{}(\_3\textbackslash{}), spanning the range 10\textbackslash{}(\textasciicircum{}\{-7\}\textbackslash{}) to 10\textbackslash{}(\textasciicircum{}\{-4\}\textbackslash{}), are obtained using vacuum-UV absorption cross sections. Unlike SF\textbackslash{}(\_6\textbackslash{}) and CF\textbackslash{}(\_4\textbackslash{}), the quantum yield for F\textbackslash{}(\textasciicircum{}-\textbackslash{}) production from SF\textbackslash{}(\_5\textbackslash{})CF\textbackslash{}(\_3\textbackslash{}) increases above the onset of photoionization.",
author = "Simpson, \{M. J.\} and Tuckett, \{R. P.\} and Hunniford, \{C. A.\} and Scully, \{S. W. J.\} and KF Dunn and CJ Latimer",
year = "2008",
month = mar,
day = "28",
doi = "10.1063/1.2894869",
language = "English",
volume = "128",
pages = "124315--1 -- 124315--10",
journal = "Journal of Chemical Physics",
issn = "1089-7690",
publisher = "American Institute of Physics",
number = "12",
}