POLYMORPHISM OF INCLUSION COMPLEXES AND UNSOLVATED HOSTS .5. CRYSTAL-STRUCTURE OF THE ALPHA-DIMORPH OF THE 1 2 DIANILINEGOSSYPOL-DMSO COMPLEX AND A 1/1/1 INCLUSION COMPLEX BASED ON A MIXED DIANILINEGOSSYPOL/1,4-DIOXANE HOST MATRIX AND 1,2-DICHLOROETHANE GUEST/

Dianilinegossypol forms a 1 : 2 host-guest complex with DMSO: monoclin ic, space group P2(1)/n, a = 8.522(3), b = 18.034(4), c = 28.462(6) An gstrom, beta = 94.14(2)degrees, V = 4362 Angstrom(3), Z = 4, D-x = 1.2 6 g cm(-3), T = 295 K. Final R value is 0.102 for 1793 observed reflec tions. A 1 : 1 : 1 adduct of dianilinegossypol with 1,4-dioxane and 1, 2-dichloroethane is found to be isostructural with the dianilinegossyp ol complex with DMSO: monoclinic, space group P2(1)/n, a = 8.281(2), b = 19.245(3), c = 27.970(7) Angstrom, beta = 95.18 degrees, V = 4439; Angstrom(3), Z = 4, D-x = 1.28 g cm(-3), T = 295 K. Final R value is 0 .114 for 2458 observed reflections. The host molecules are associated by O(4)-H ... O(3) H-bonds to infinite chains running in the direction of the c-axis The chains are incorporated into layers through 1,4-dio xane or DMSO molecules having H-bonds with dianilinegossypol molecules . Another DMSO or 1,2-dichloroethane molecule is included as a guest i n the channels formed between the layers. At 60 degrees C a cryptate-t ype inclusion complex of dianilinegossypol is formed with DMSO or 1,4- dioxane. It is isostructural with the acetone complex reported in Part IV of the present series.