Associative ionization is a gas phase reaction in which two atoms or molecules interact to form a single product ion.^[1] One or both of the interacting species may have excess internal energy.

For example

A^* + B \to AB^{+\bullet} + e^-

where species A with excess internal energy (indicated by the asterisk) interacts with B to form the ion AB⁺.

See also

• Chemi-ionization
• Penning ionization

References

References