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1 2009

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Two Supramolecular Complexes with Hydrogen-bonds of N-H ··· O and C-H ··· O between Dicarboxylic Acids and Bis-imidazoles

Jin S. W., Wang D. Q., Jin Z. J., Wang L. Q.

Polish Journal of Chemistry

2009

Vol. 83, nr 11

1937-1944

Two imidazole derived supra molecular complexes (N,N'-butylenebis(imidazole) : (tere - phthalic acid)2 (1), and N,N'-butylenebis(imidazole) : sebacic acid (2)) were synthesized and structurally characterized by X-ray crystallography. Compounds 1 and 2 both crystallize in the triclinic P-1 space group. In compound 1, one-dimensional grid structure is formed through imidazolium moieties hydrogen bonded to mono-ion carboxylate groups of two par al lel terephthalate chains. Ad ja cent grids packed along the b axis through C-H ··· O hydrogen bonds form 3D network. For compound 2, with strong O-H ···N hydrogen bonds, the bis(imidazole) and the sebacic acid are arranged alternatively to form 1D in finite chain, which is further stacked into a 3D net work structure through additional C-H ··· O hydrogen bonds.