COMPLEXATION WITH HYDROXY HOST COMPOUNDS .5. STRUCTURES AND THERMAL ANALYSES OF 1,2,3,4,5-PENTAPHENYLCYCLOPENTA-2,4-DIEN-1-OL AND ITS INCLUSION-COMPOUNDS WITH WATER AND DIMETHYLSULFOXIDE

The crystal and molecular structures of the title host compound (I), C35H26O, and its inclusion complexes with water (II), C35H26O.H2O and dimethylsulphoxide (III), C35H26O.C2H6OS are reported. (I) is monoclinic C2/c, a = 9.725(1), b = 20.031(3), c = 26.545(3) angstrom, beta = 90.60(1)0, V = 5170 angstrom3, Z = 8; (II) is triclinic, P1BAR, a = 10.206(1), b = 10.324(2), c = 14.425(2) angstrom, alpha = 101.68(1), beta = 89.92(2), gamma = 116.34(1)0, V = 1327 angstrom3, Z = 2; (III) is monoclinic P2(1)/n, a = 17.832(5), beta = 10.109(3), c = 17.901(5) angstrom, beta = 11 1.93(2)0, V = 2993 angstrom3, Z = 4. The structures were solved by direct methods and refined to final residuals of 0.045, 0.048, and 0.071, respectively. Thermal analysis of the complexes corroborates the crystallographic results.