Selbst ein kleines Molekül ist anpassungsf?hig

摘要

Indigo is a blue dye that can be extracted from plants. It is the oldest stable organic blue dye used by humans since prehistoric times. Indigo, with a molecular weight of 262.27 grams per mole, is a small molecule even compared to crystal sugar sucrose with 342.3 grams per mole. And this indigo molecule, consisting of 30 atoms, can behave differently depending on the environment. This adaptability is hardly described in all its variety in the literature. If, for example, a very precise density of indigo is given in a physicochemical table, then one must be aware that this can only be transferred to applications to a limited extent. The characteristic properties of pure substances may be scientifically interesting, but what is really exciting is their dynamic behavior in systems in nature or in applications. These changing, diverse "faces" of indigo are the content of this article.