Alejandros work has just been published in Angewandte Chemie Int. Ed. In this paper, Single-Crystal X-Ray Diffraction is used to follow the restricted polymerization of pyrrole inside a cyclodextrin MOF, which generates discrete units of highly reactive cationic terpyrrole inside the pores. This work gives unprecedented information about the host-guest interactions that limit the formation of polymers, that can be useful to future works using MOFs as templates for polymerization processes. For more info see here