Host molecule design via lattice considerations. Crystal structure of the inclusion compound between cis-1,4-bis(9-phenylfluoren-9-yloxymethyl)cyclohexane and dioxane (2 : 1)

Two new host molecules, 2 and 3, are described, representing a noval desing strategy where H-bond interactions of a known inclusion compound are replaced by covalent links; the X-ray structure of the 2 : 1 (host : guest) inclusion compound of 2 with dioxane is reported.