Bulletin of the Chemical Society of Japan · 1976 · 12 citations · 3 references
Natural SciencesChemistryCrystal StructureOrganic ChemistrySolid-state ChemistryCrystal ChemistryCrystal LatticeCrystallographyMolecular StructureMolecular SymmetryStructure DeterminationCrystal Structure RefinementCrystal Symmetry AnalysisHydrogen BondingIntramolecular Hydrogen BondingMolecular Structure DeterminationOrganic CrystalsOrthorhombic Crystal LatticesUnit Cell Determination
Abstract The crystals of 1-(2-thiazolylazo)-6-bromo-2-naphthol are orthorhombic, with a space group of P212121, and with unit-cell dimensions of a=19.044(3), b=31.996(9), c=4.221(1) Å, and z=8. The crystal structure was solved by the heavy-atom method and refined by the least-squares technique to give an R value of 0.064 for 1608 observed reflections. Both of the two crystallographically independent molecules show a generally similar shape and size. The phenolic oxygen atom is linked to the azo nitrogen atom adjacent to the thiazole ring by intramolecular hydrogen bonding, the O···N distances being 2.54 Å.
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