Gaseous Electronics

16

DEUTERIUM IODIDE

CONTENTS

16.1 Attachment Data

Reference

 

Deuterium iodide (DI) has properties similar to hydrogen iodide (HI) as expected, though the cross sections for the deuterated isotope tend to be smaller. The attachment rate constant is ∼8 × 10⁻¹⁴ m³/s (Christophorou et al., 1968), the ion formed being I⁻ due to dissociative attachment. Table 16.1 shows the electron attachment data for DI and HI. Table 16.2 and Figure 16.1 show the attachment cross sections for DI.

TABLE 16.1Electron Attachment Data for DI

Appearance
Molecule	Potential	Peak Energy (eV)	Qa (peak, m2)
DI	∼0	∼0	1.38 × 10−18
HI	∼0	∼0	2.56 × 10−18

Source: Adapted from L. G. Christophorou, R. N. Compton, and H. W. Dickson, J. Chem. Phys., 48, ...