0D modeling of 90 organic species (PAHs and other organic molecules) for P = 10⁻² bar and over a wide temperature grid: the nth isomer for some species is displayed with the symbol ‘_n’ (n is an integer). Subfigures (a) and (b) showcase the PAHs and saturated/less unsaturated species, respectively. Entities with more unsaturation are separately shown in (e). (c) and (d) display a combination of different categories together.