Mobility of excess electrons in mixtures of neopentane and tetramethylsilane

The authors report on the change of electron mobility in mixtures of neopentane (μ_el=70 cm² V^-1 s^-1) and tetramethylsilane (μ_el=95 cm² V^-1 s^-1) at room temperature. Different theoretical models are discussed and new measurements of the mobility of excess electrons in mixtures of liquid neopentane and tetramethylsilane at (22±2)°C as a function of composition are presented. The dependence of the electron mobility on the composition of the mixture is shown. In the pure solvents, μ_el(NP)=66.5 cm² V ^-1 s^-1 and μ_el(TMSi)=99 cm² V^-1 were measured. The mean error of the experimental mean values is approximately ±5%