Semicontinuum model for the trapped dielectron in polar liquids and solids

Abstract

A semicontinuum model for trapped dielectrons, two electrons in the same cavity, has been developed and applied to liquid ammonia, water, ice at 77°K, and methyltetrahydrofuran and amine glasses at 77°K. In all matrices the configurational stability of the ground state of the dielectron has been established, and the dielectron is found to be stable with respect to two single trapped electrons. In general the cavity radius for the dielectron is slightly smaller than that for the single electron. The excited state of the dielectron is bound, and only slight shifts of the optical absorption band of the dielectron compared to the single electron are predicted.