1:2 and 2:1 Stoichiometric Inclusion Complexes of 1,1,6,6-Tetraphenylhexa-2,4-diyne-1,6-diol and p-Anisaldehyde

1:2 and 2:1 stoichiometric complexes of 1,1,6,6-tetraphenylhexa-2,4-diyne-1,6-diol (DD) and p-anisaldehyde were presented in this paper. 2:1 inclusion complex of DD with p-anisaldehyde (denote 1) was fortuitously obtained from the volatile oil of medicine herb Zanthoxylum schinifolium Sieb.et Zucc. 1:2 inclusion complex of DD with p-anisaldehyde (denote 2) was obtained under ordinary crystallization conditions. The results of single crystal X-ray diffraction show that complex 1 is triclinic, space group PA <<, whereas the complex 2 is monoclinic, space group P2(1)/n. In the complex of 1, 1D zigzag ribbon host framework is constructed through a closed hydrogen bonding network formed by DD molecules themselves and p-anisaldehyde molecules are accommodated into the tunnel enclosed by 1D zigzag ribbons. In the complex of 2, DD and p-anisaldehyde are connected with each other via hydrogen bonding, forming a layer-type structure. DD molecule exhibits gauche conformation in complex 1 and antiperiplanar conformation in complex 2, which are regarded as supramolecular conformation stereoisomers.