N. Babu, A. Nangia
Jul 22, 2006
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Journal
Crystal Growth & Design
Abstract
We show the requirement of Z‘ ≥ 2 for assembling an acid−pyridine trimer synthon in small, dissymmetric molecules. 5-Methylpyrazine-2,3-dicarboxylic acid (1) forms the rare O−H···N trimer synthon between three symmetry-independent molecules in a Kagome lattice. The two-dimensional layers organize in a chiral P65 crystal system stabilized by C−H···O helices.