Co-crystallization of a Versatile Building Block Benzoguanamine with Two Flexible Cyclohexanedicarboxylic Acids

摘要: Co-crystallization of a versatile building module benzoguanamine (bga) with two flexible cyclohexanedicarboxylic acids, 1,4-cyclohexanedicarboxylic acids (1,4-chdcH2) and 1,3-cyclohexanedicarboxylic acid (1,3-chdcH2) affords 3-D supramolecular solids (bga)·(1,4-chdcH2)0.5 (1), (bga)3·(1,4-chdcH2)·(H2O)2 (2). The architectures the complexes are predominantly hydrogen bonded via N–H⋯N base pairs, in which adjacent bga molecules form (bga)∞ ribbons pairs bonds (R22(8) synthon). Typical acid-base R22 (8) synthons consisting nitrogen amine group L carboxylic groups featuring N–H⋯O O–H⋯N also observed complexes. presence water makes network 2 quite complicated, hydrogen-bonded [(1,3-chdcH2)·(H2O)2]∞ chain is observed. Two co-crystals have been obtained characterized by X-ray crystallography. typical consisted N–H⋯N, bonding interactions complexes, leading to architectures.