Front Cover: Ruthenium Complexes with a Tridentate Anionic Bisfluoroalkoxy‐Carbene Ligand – Valuable Latent Olefin Metathesis Catalysts for Polymerisation Reactions (Eur. J. Inorg. Chem. 15/2024)

The Front Cover shows a Grubbs‐type ruthenium complex bearing a potentially tridentate bisfluoroalkoxy‐carbene ligand. In the chelated O,C,O‐form, it was found to be inactive in olefin metathesis reactions, but the addition of HCl causes dissociation of the fluoroalkoxy units, as illustrated by the wing‐like shape of the fire coral in the background, and renders the complex an active catalyst for the synthesis of a number of cyclic olefins and ethers, as well as stereoregular polynorbornene with an unexpectedly high content of trans‐configured double bonds, as found in commercially available polynorbornene (Norsorex®). More information can be found in the Research Article by M. Tamm, A. Kajetanowicz and co‐workers.