to trace the origin of this perception to a particular paper). The DFT values obtained for the PAH101 set (see Figure The crystal packing probably also contributes significantly to the dielectric screening. Most of the research on organic materials with high dielectric constants has been on polymers for applications in bulk heterojunction organic solar cells (e.g., ), which are very different for the materials in the PAH101 set. This calls for further investigation of the dielectric behavior of molecular crystals. We note that the full dielectric function, which contains information on the frequency dependence and anisotropy, is available in the dataset (in the absorption entry, see Table ).