Lifetimes of negative molecular ions

1.	It has been shown that, the lifetime of a negatively charged molecular ion, is related to the following molecular parameters: the electron affinity, the electronic-vibrational interaction constants, the active vibration frequencies, and the value of the nonadiabaticity. depends critically on the electron affinity, increasing monotonically as the latter rises.
2.	The rate of ion breakdown along each of the decomposition channels increases with an increase in the energy of the impinging electron and/or the initial vibrational energy of the molecule. There is an increase in the number of breakdown channels under these same conditions, but it is not large.
3.	The lifetime of the negatively charged molecular ion can be used to get a highly precise determination of the electron affinity of the molecule.
4.	The distribution of emitted electrons over energies is essentially exponential, the characteristic width being given by /ln(E1/E1Ne).).