Desorption kinetics of a xanthenol–dioxane clathrate

The host xanthenol compound forms a 1:1 clathrate with dioxane, namely 9‐(1‐naphthyl)‐9H‐xanthen‐9‐ol–1,4‐dioxane, C₂₃H₁₆O₂·C₄H₈O₂. The structure of this clathrate is reported, along with a study of the kinetics of desolvation and the determination of an activation energy. The guest mol­ecules are stabilized by O_host—H⋯O_guest hydrogen bonds [O—H = 0.968 (2) Å, O⋯O = 2.7532 (13) Å and O—H⋯O = 151.9 (4)°].