Gaseous Electronics

96

DIBROMODI-FLUOROETHANE

CONTENTS

96.1 Attachment Rates and Cross Sections

References

 

Dibromodifluoroethane (C₂H₂Br₂F₂) is an electron-attaching gas that has 102 electrons. The calculated electronic polarizability is 6.33 × 10⁻⁴⁰ F m² (see Barszczewska et al., 2004).

96.1 ATTACHMENT RATES AND CROSS SECTIONS

Table 96.1 shows the attachment rate constants and Figure 96.1 shows the attachment rate constants as a function of mean energy (Sunagawa and Shimamori, 1995). The attachment cross sections are deconvoluted from the attachment rate constants.

The main ions observed are Br^- and ${\text{Br}}_2^{-}$ with peak at zero energy (Sunagawa and Shimamori, 1995). Table 96.2 and Figure 96.2 show attachment cross sections.

TABLE 96.1Attachment Rates