Frontispiece: Cluster‐Based Crystalline Materials for Iodine Capture

Clusters is a group of the same or different elements that aggregate closely together. Cluster‐based crystalline materials, including molecular clusters and cluster‐based metal‐organic frameworks, are emerging candidates for iodine capture due to their aggregative binding sites, precise structural information, tunable pores/packing patterns, and abundant modifications. The contributions of these cluster‐based crystalline materials to the host‐guest chemistry of iodine are summarized in the Review by W.‐H. Fang and colleagues (DOI: 10.1002/chem.202202638).