Articles are distributed under the terms of the Creative Commons Attribution-NonCommerical-NoDerivates (CC-BY-NC-ND) License, permitting copying and reproduction as long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon (https://creativecommons.org/licenses/by-ncnd/4.0/). Although Thieme's default license is CC-BY-NC-ND, in case of a funder requiring it, you as the author may select another license (e.g. CC-BY, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited) and we will arrange your publication accordingly. If material taken from foreign sources (including graphics, tables, etc.) is included in a manuscript submitted to Organic Materials, it must be clearly indicated as such by citation of the original source and, whenever necessary or required, permission for reproduction must be obtained from the respective publishing company.