With the largest cavity in the cucurbituril family, cucurbit[10]uril (CB[10]) has been utilized to make supramolecular assemblies b
y host–guest-enhanced charge-transfer interactions. Two packed “sandwiches” have been assembled b
y forming a 1:2:1 or 1:1:1 complex between CB[10] and viologen derivatives and an electron-rich molecule in water. Amazingl
y, as a known building block for the construction of molecular machines, blue box can be encapsulated within CB[10]. B
y threading a guest through the cavities of both blue box and CB[10], a supramolecular “Russian doll” architecture has been built up. More information can be found in the Full Paper b
y L. Isaacs, S. Liu et al. on
page 17612 ff.