Abstract
1,1'-Binaphthyl-2,2'-dicarboxylic acid (1) forms crystalline inclusion compounds with 1-PrOH (2:1) andt-BuOH (1:1). X-ray crystal structures of the two inclusion compounds are reported. Crystals of1·1-PrOH (2: 1) show triclinic (\(P\bar 1\)) symmetry with the unit cell dimensionsa = 10.160(1),b = 14.050(2),c = 15.167(1) Aα = 100.37(1),β = 104.40(1), andγ =94.82(1)°. Crystals of1s·t-BuOH (1: 1) are monoclinic (P21/n) with the cell dimensionsa = 10.603(5),b = 14.377(4),c = 15.664(7) A,β = 104.24(4)°. In both structures, H-bonded loops involving host −000H functions and guest −OH groups establish the supramolecular association. They relate these coordinatoclathrates to previous alcohol inclusions of1. Due to the unusual 2:1 (host: guest) stoichiometry, additional dimer-like interactions between −000H groups of host molecules are found in the 1-PrOH inclusion compound. From the point of view of topology these structures can be referred to as channel inclusion compounds.
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