Crystal structure investigations of inclusion complexes between β-cyclodextrin and alkyl(aqua)cobaloximes (alkyl=butyl, hexyl and cyclohexyl)

The crystal and molecular structures of alkylcobaloxime/beta-cyclodextrin (beta-CD) inclusion complexes: butyl(aqua)cobaloxime/beta-CD (1). hexyl(aqua)cobaloxime/beta-CD (2) and cyclohexyl(aqua)cobaloxime/beta-CD (3) were determined by X-ray diffraction analyses. Crystal data for 1.141120: P2(1)2(1)2(1), a = 15.1335(3), b = 18.9630(2), c = 28.1545(5) Angstrom, Z = 4;2(.)12H(2)O: P2(1)2(1)2(1), a = 15.1135(4), b = 19.1477(5), c = 28.2715(7) Angstrom, Z = 4; 3(.)10H(2)O: P2(1)2(1)2(1), a = 15.6898(2), b = 16.9094(2), c = 28.9762(2) Angstrom, Z = 4. The structural and conformational comparisons for the three beta-CD inclusion complexes with their guest molecules as well as other CD inclusion analogs are discussed.