Gaseous Electronics

22

HYDROGEN IODIDE

CONTENTS

22.1 Selected References for Data

22.2 Attachment Processes

22.3 Attachment Cross Section

22.4 Attachment Rates

References

 

Hydrogen iodide (HI) is an electron-attaching, polar molecule that has 54 electrons. The electronic polarizability is 6.053 × 10⁻⁴⁰ F m², the dipole moment is 0.448 D, and the ionization potential is 10.386 eV. The dissociation energy of the molecule is 3.09 eV and the electron affinity of the iodine atom is 3.06 eV. The vibrational excitation energy is 286.3 meV and the rotational excitation energy (Δj = 1) is 1.6 meV.

22.1 SELECTED REFERENCES FOR DATA

Table 22.1 shows selected references for data on HI.

22.2 ATTACHMENT PROCESSES

Common with other hydrogen halides, the predominant ...