Electron attachment to complex molecules

The intersection of electron terms of the ground state of molecule and of t he autodetachment state of negative ion for complex symmetric molecules suc h as SF6 is analyzed. Simple theoretical models are used to analyze the mea sured parameters which characterize the electron attachment to SF6 and othe r complex molecules. As a result, the parameters of ultraslow electron atta chment to an SF6 molecule are found for different values of vibrational tem perature of the molecule.:The parameters are given of the temperature depen dence of the rate constant of electron attachment to a number of complex mo lecules.