Our work in the area of synthesis of metal-organic frameworks (MOFs) based on organic -oxides led to the crystallization of pyridine-4-carboxamidoxime -oxide. Herein we report the first crystal structure of the title compound, CHNO [systematic name: ()-4-('-hy-droxy-carbamimido-yl)pyridine -oxide]. The hy-droxy-carbamimidoyl group is essentially coplanar with the aromatic ring, r.m.s.d. = 0.112 Å. The compound crystallizes in hydrogen-bonding layers built from the formation of strong O-H⋯O hydrogen bonds between the oxime oxygen atom and the oxygen atom of the -oxide, and the formation of N-H⋯O hydrogen bonds between one amine nitro-gen atom and the -oxide oxygen atom. These combined build (24) ring motifs in the crystal. The crystal structure has no π-π inter-actions.
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| http://dx.doi.org/10.1107/S2414314620013358 | DOI Listing |
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