Separation of lutidine isomers by inclusion

Structures of the inclusion compounds formed between the host compound 1,4- bis(9-hydroxy-9-fluorenyl)benzene and three lutidine regioisomers, 2,4-, 3, 5-, and 2,6-lutidine, have been elucidated. Competition experiments were pe rformed to investigate the degree of host selectivity for complexation with the lutidine isomers. Lattice energy calculations explain the results of t he competition experiments, and thermal analysis shows that the desolvation reactions an complex.