A Crystalline Annelated Pyridin-1-ylidene and Its Isomerization into a Pyridin-3-ylidene - Jan Lorkowski; Levan Gojiashvili; Patrick Yorkgitis; Delphine Pichon; Jakub Talcik; Milan Gembicky; Thierry Roisnel; Olivier Baslé; Rodolphe Jazzar; Marc Mauduit; Guy Bertrand (Journal of the American Chemical Society, 2025)