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File:Cucurbit-6-uril ActaCrystallB-Stru 1984 382.jpg
A cavitand cucurbituril bound with a guest p-xylylenediammonium reported by Freeman in Acta. Crystallogr. B, 1984, 382-387.

A cavitand is a container shaped molecule.[1] The cavity of the cavitand allows it to engage in host-guest chemistry with guest molecules of a complementary shape and size. Examples include cyclodextrins, calixarenes, and cucurbiturils.

See also


  1. D. J. Cram (1983). "Cavitands: organic hosts with enforced cavities". Science. 219 (4589): 1177–1183. doi:10.1126/science.219.4589.1177. PMID 17771285.