ROLE OF METHANOL IN CHIRAL COMBINATIONS OF HOST-GUEST MOLECULES IN THE INCLUSION CRYSTAL - STRUCTURE DETERMINATION BY X-RAY CRYSTALLOGRAPHY

(S,S)-(-)-1,4-bis[3-(o-chlorophenyl)-3-hydroxy-3-phenyl-1-propynyl]benzene (2) and (S,S)-(-)-9,10-bis[3-(o-chlorophenyl)-3-hydroxy-3-phenyl]anthracene (3) include one enantiomer of racemic guest compound when the complexation is carried out in toluene, but include the other enantiomer and MeOH in a 1:1:1 ratio when the complexation is carried out in MeOH; the X-ray crystal structure of a 1 : 1 : 1 complex of 3, (S)-(+)-2-methylpiperidine and MeOH is reported, and preparation of the new chiral host compound (3) is also described.