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Author(s): Hanan A. Mohamed | Bakr F. Abdel-Wahab | Seik Weng Ng | Edward R. T. Tiekink

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 69;
Issue: 4;
Start page: o577;
Date: 2013;
Original page

In the title compound, C18H14N6O2, the benzene ring is slightly twisted out of the plane of the 1,2,3-triazole ring (r.m.s. deviation = 0.010 Å), forming a dihedral angle of 6.20 (13)°. The nine non-H ring atoms of the fused five- and six-membered ring system are almost coplanar (r.m.s. deviation = 0.032 Å). The near coplanarity in the central residue is consolidated by an intramolecular bifurcated N—H...(O,N) hydrogen bond. The conformation about the N=C bond is Z. In the crystal, supramolecular chains along [101] are sustained by N—H...O hydrogen bonds and C—H...O interactions. These are consolidated into a three-dimensional architecture by C—H...π and π–π interactions; the latter occur between centrosymmetrically related 1,2,3-triazole rings [centroid–centroid distance = 3.6056 (14) Å].

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