Front Cover: Crystal Structure of Iodinated Mesoionic Triphenylthiazol‐3‐ium‐4‐olates: Combination of Stacking and Halogen Bonding Interactions (ChemPlusChem 11/2025)

Mesoionic compounds bearing halogen atoms have the potential to form “charge-assisted halogen bonding”. Three types of halogen interactions are found by varying the substituted position of iodine atoms on mesoionic triphenylthiazol-3-ium-4-olates in the crystal structures. They also exhibit columnar stacking structures, whose interaction is greater energetic stabilization than halogen bonding. The columnar arrangement is influenced by the nature of the halogen bonding. More information can be found in the Research Article by Shoji Matsumoto, Shun Suzuki, and Motohiro Akazome (DOI: 10.1002/cplu.202500477).