Gaseous Electronics

14

DEUTERIUM BROMIDE

CONTENTS

14.1 Attachment Cross Section

References

 

Deuterium bromide (DBr) has properties very similar to hydrogen bromide (HBr) as expected. The attachment rate constant for the molecule is 3.1 × 10⁻¹⁷ m³/s (Christophorou et al., 1968). The attachment cross sections are very similar to that for HBr, the ion formed being Br⁻ due to dissociative attachment. Table 14.1 shows the electron attachment data for DBr and HBr.

Table 14.1 Electron Attachment Data for DBr and HBr

Molecule	Appearance Potential	Peak (eV)	Qa (peak) m2
DBr	0.11	0.28	18.7 × 10−21
HBr	0.11	0.28	27 × 10−21
0.5	5.8 × 10−21

Source: Adapted from Christophorou, L. G., R. N. Compton, and H. W. Dickson, J. Chem. Phys., 48, 1949, 1968. ...