The through-film electrical conductivity of Langmuir-Blodgett monolayer films of hexadecylquinolinium tricyanoquinodimethanide was studied as a function of temperature. The current is usually smaller at low temperature. Electrical rectification, probably due to an intramolecular electron transfer, was observed between 370 and 105 K, with a rectification ratio as large at 105 K as it is at room temperature.