Thermal-Energy Dissociative Attachment of I2; Deduction of the Curve Crossing Point from Experimental Measurements

Abstract

O'Malley's theory has been applied to the reaction of thermal energy electrons with I₂ molecules. The best fit to the experimentally measured temperature dependence of the attachment coefficient is given by an I₂⁻−I₂ crossing at 0.066 ± 0.007 eV above the I₂ minimum. This occurs very close to the $\text{υ\hspace{0.17em}=\hspace{0.17em}2}$ vibrational energy level.