ABSTRACT
Electron attachment occurs in hydrocarbons due to both direct and dissociative attachment processes. The attachment cross section (see Table 89.7 and Figure 89.6) depends upon
TABLE 89.1 Vibrational Excitation Energy of C3H4 Mode Energy (eV) Assignment
ν1 0.413 Acetylene C-H stretch ν2 0.365 Symmetric methyl stretch ν3 0.264 C≡C stretch ν4 0.172 Methyl deformation ν5 0.115 C-C stretch ν6 0.369 Antisymmetric methyl C-H stretch ν7 0.180 Methyl skeletal deformation ν8 0.128 Methyl skeletal rock ν9 0.078 C≡C-H bend ν10 0.046 C-C≡C bend
TABLE 89.2 Selected References for Data
Type Energy Range (eV) Reference
Qdiff, Qel, QM 0-40 Lopez et al. (2003)
Qdiff, Qv 0-100 Nakano et al. (2002)
QT 0.5-370 Szmytkowski and Kwitnewski (2002)
Qex 20-100 Flicker et al. (1979)
Qa 0-15 Rutkowsky et al. (1980)
Note: Qdiff = differential; Qel = elastic scattering; Qex = excitation; QM = momentum transfer; QT = total; Qv = vibrational excitation.
