The in, out asymmetric pseudo-triple helical form of a [D.sub.3h] diaza-macropentacycle

A sterically encumbered [[N.sub.2][S.sub.6]] macropentacycle related to diazamacrobicycles and cryptands is prepared by the [1!] condensation reaction between functionalized macrocyclic and macrotricyclic precursors. Adoption of the in, out form by macropentacycle in the crystal and in solution at low-temperature has resulted from the steric crowding and strain introduced by the [15]ane-[N.sub.2][S.sub.2] macrocyclic bridging subunits.