Identifying the Internal Network Structure of a New Copper Isonicotinate Thin‐Film Polymorph Obtained via Chemical Vapor Deposition oleh Lukas Legenstein, Sabina Rodríguez‐Hermida, Víctor Rubio‐Giménez, Timothée Stassin, Sebastian Hofer, Manuel P. Kainz, Mario Fratschko, Francesco Carraro, Paolo Falcaro, Rob Ameloot, Roland Resel