Cover Image, Volume 118, Issue 15

In the cover article e25602, Ramon Carbó‐Dorca discusses the thermal voltage concept. This idea, used for a long time in solid state lore, is employed to develop a general formalism, tending to provide the so‐called quantitative structure‐properties relations (QSPR) from a quantum theoretical point of view. In this way, thermal voltage permits first to define a homothetic scaling of quantum electronic density functions. Three application examples in the domain of chirality, toxicity and biological activity are provided. Original illustration by Pep Camps (Painter from Girona). (DOI: 10.1002/qua.25602 )