Rare 'head-to-tail' arrangement of guest molecules in the inclusion complexes of (+)- and (−)-menthol with β-cyclodextrin

► Inclusion complexes of (+)- and (−)-menthol with β-cyclodextrins in the solid state. ► Both complexes exhibit unusual 'head to tail' arrangement of guest molecules. ► Solid state complexes show screw channel type packing.