The structures of five hydrogen-bonded adducts of triphenylsilanol, Ph3SiOH, with diamines have been determined. In the 4:1 adduct formed with 1,4-diazabicyclo[2.2.2]octane, (Ph3SiOH)4.C6H12N2 (I) (triclinic, P1, Z' = 2), there are two independent five-component aggregates built from O-H...N and O-H...O hydrogen bonds, in one of which the diamine exhibits orientational disorder: these two aggre...
