Front Cover: Four‐ and Five‐Coordinate Titanium(IV) Complexes Supported by the dpp‐bian Ligand in ROP of L‐Lactide (Eur. J. Inorg. Chem. 39‐40/2019)

The Front Cover shows a basketball workout that is like a catalytic ROP of L‐lactide driven by α‐diimine‐supported titanium coordination compounds. The color of characters refers to the degree of oxidation of the ligand. The clumsy red player holds the ball firmly, just as the bis(amide) ligand chelates the titanium ion in a σ2π‐fashion. Conversely, the blue player demonstrates his mastery, handling the ball only with fingertips. In the same manner, the weaker binding of the radical anionic ligand to the metal center enhances the catalytic activity of the appropriate titanium catalyst in highly controlled living polymerization. More information can be found in the Full Paper by A. G. Morozov et al. For more on the story behind the cover research, see the Cover Profile.