ABSTRACT
Deuterium iodide (DI) has properties similar to hydrogen iodide (HI) as expected, though the cross sections for the deuterated isotope tend to be smallerThe attachment rate constant is ~8 × 10−14 m3/s (Christophorou et al, 1968), the ion formed being I− due to dissociative attachment Table 161 shows the electron attachment data for DI and HITable 162 and Figure 161 show the attachment cross sections for DI
See Figure 161
TABLE 16.1 Electron Attachment Data for DI
Molecule Appearance
Potential Peak Energy (eV) Qa (peak, m2)
DI ~0 ~0 138 × 10−18
HI ~0 ~0 256 × 10−18
Source: Adapted from L G Christophorou, R N Compton, and HW Dickson, J. Chem. Phys., 48, 1949, 1968
TABLE 16.2 Dissociative Attachment Cross Sections for DI
Energy (eV) Qa (10-18 m2) Energy (eV) Qa (10-18 m2)
00 139 025 0145
002 116 030 01
005 088 035 008
007 067 040 006
01 048 045 005
015 03 050 004
02 019
Source:Adapted from LGChristophorou, RNCompton, and HW Dickson, J. Chem. Phys, 48, 1949, 1968
2.5
1.5
0.5
0 0.2 0.4
Energy (eV) 0.6 0.8 1
Q a (1
m 2 )
DI HI
Attachment
161 Attachment Data 113 Reference113
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