Solvent-bridged frameworks of hydrogen bonds in crystals of 9-aminoacridinium halides?

CrystEngComm Pub Date: 2013-06-28 DOI: 10.1039/C3CE41027G

Abstract

Crystal structures of eight salts of 9-aminoacridine – chloride monohydrate (1), bromide monohydrate (2), iodide monohydrate (3), chloride methanolate (4), bromide methanolate (5), iodide methanolate (6), fluoride dihydrate (7) and chloride dihydrate (8) – have been studied. The ions and solvent molecules in the crystal structures of 1–8 interact via N–H?X, O–H?X and C–H?X hydrogen bonds (where X = O, F, Cl, Br or I), producing different types of supramolecular synthons consisting of amine groups of 9-aminoacridinium cations, halide anions and solvent molecules. The hybrid dihalide–dihydrate clusters of [X2(H2O)2]2? are observed in compounds 1, 2, 3 and 7. The dichloride–tetrahydrate cluster of [Cl2(H2O)4]2? and (H2O)4 water cluster are present in the crystals of 8.

Graphical abstract: Solvent-bridged frameworks of hydrogen bonds in crystals of 9-aminoacridinium halides
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