Crystal engineering of multiple-component organic compound: Organic co-crystals of the functional groups of carboxyl and amino with persistent hydrogen bonding motifs
Ge Song , Feng-ying Bai , Na Xing , Chen Chen , Hui Shan , Yong-heng Xing
Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (3) : 408 -413.
Crystal engineering of multiple-component organic compound: Organic co-crystals of the functional groups of carboxyl and amino with persistent hydrogen bonding motifs
Three small organic molecular co-crystal compounds (C3N6H6)·(C6H10O4)·H2O(1), C3H8N2O(3) and (H4btec)2·(4,4′-bipy)(4)(H4btec=1,2,4,5-benzenetetracarboxylic acid, 4,4′-bipy=4,4′-bipyridine) and one coordination supramolecular compound [Mn(C2O4)(H2O)2]·C6H11NO2(2) were synthesized by hydrothermal reaction. They were characterized by elemental analysis, infrared(IR) spectroscopy and single crystal X-ray diffraction(XRD). Structural analyses reveal that these 2D or 3D supramolecular networks of the compounds were formed by $C---H \cdots O$, $N---H \cdots O$, $N---H \cdots N$, $O---H \cdots O$ and $O---H \cdots N$ hydrogen bonds. Therein, the functional groups of -COOH, -NH2 and -OH play important roles in constructing supramolecular architectures.
co-Crystal compound / Hydrogen bond / Hydrothermal reaction
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