Supramolecular architectures of simple aminoanthraquinones: Revised structure of 1-aminoanthraquinone

✍ Scribed by Dalibor Milić; Zoran Džolić; Massimo Cametti; Biserka Prugovečki; Mladen Žinić

• Book ID: 103838409
• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 422 KB
• Volume: 920
• Category: Article
• ISSN: 0022-2860
• DOI: 10.1016/j.molstruc.2008.10.042

✦ Synopsis

The solid-state supramolecular architectures of 1-aminoanthraquinone and 1,5-diaminoanthraquinone were determined by single-crystal X-ray structural analysis. In this paper, revised model À in space group P2 1 /c À is given for the crystal structure of 1-aminanthraquinone. 1-Aminoantaquinone molecules are joined together in infinite chains by NAHÁ Á ÁO hydrogen bonds and stacked by face-to-face pÀp and CAHÁ Á Áp interactions thus creating layers and the characteristic herring-bone motif. In the structure of 1,5-diaminoanthraquinone the molecules are connected via NAHÁ Á ÁO hydrogen bonds in the 2D networks of (4,4) topology. These molecular networks are further stacked by face-to-face pÀp and car-bonylÀcarbonyl interactions. The supramolecular organizations of these two compounds are compared with other simple aminoanthraquinones (with at least one non-substituted amino group) thus providing more insights into the basic principles of the solid-state assembling for this class of molecules.