ABSTRACT
Deuterium chloride (DCl) has properties very similar to hydrogen chloride (HCl) as expected The attachment rate constant is 12 × 10−16 m3/s (Christophorou et al, 1968)The attachment cross sections are very similar to those for HBr, the ion formed being Br− due to dissociative attachment Table 151 shows the electron attachment data for DCl and HCl Table 152 and Figure 151 show the attachment cross sections for DCl The step-like structure in the attachment cross section curve is attributed to the vibrational modes ν = 4 to 6 (Abouaf and Tillet-Billy, 1977) The energy for vibrational excitation of DCl molecule is 266 meV
See Figure 151
TABLE 15.1 Electron Attachment Data for DCl and HCl
Molecule Appearance
Potential Peak Energy (eV) Qa (peak, m2)
DCl 063 075 14 × 10−22
HCl 063 078 195 × 10−22
Source: Adapted from Christophorou, L G, R N Compton, and H W Dickson, J. Chem. Phys., 48, 1949, 1968
TABLE 15.2 Dissociative Attachment Cross Sections for DCl
Energy (eV) Qa (10−22 m2) Energy (eV) Qa (10−22 m2)
065 442 135 244
070 818 140 219
075 1146 145 194
080 1480 150 169
085 1586 155 145
090 1342 160 123
095 1042 170 089
100 742 175 075
105 609 180 063
110 478 185 051
115 401 190 038
120 338 195 024
125 296 200 007
130 268
Source:Digitized from Christophorou, LG, RNCompton, and HW Dickson, J. Chem. Phys, 48, 1949, 1968
151 Attachment Data 111 References112
0 0.5 1 Energy (eV)
Q a (1
m 2 )
1.5 2
0.1
