Sodium 4-(2-pyridinyl­diazenyl)­resorcinolate monohydrate and ammonium 2,4-di­nitro-1-naphthalenolate from powder diffraction data

The crystal structures of two dyestuffs, Na+·C11H8N3O2−·H2O, (I), and NH4+·C10H5N2O5−, (II), were determined from X‐ray powder diffraction data. In both structures, translationally related anions form stacks, and cations fill interstack channels. A comparison of the diffuse reflectance spectra of cr...

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Bibliographic Details
Published in:Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2001-04, Vol.57 (4), p.397-399
Main Authors: Yatsenko, A. V., Paseshnichenko, K. A., Chernyshev, V. V., Schenk, H.
Format: Article
Language:English
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Summary:The crystal structures of two dyestuffs, Na+·C11H8N3O2−·H2O, (I), and NH4+·C10H5N2O5−, (II), were determined from X‐ray powder diffraction data. In both structures, translationally related anions form stacks, and cations fill interstack channels. A comparison of the diffuse reflectance spectra of crystalline (I) and (II) with the absorption spectra of their aqueous solutions demonstrates that the geometry of their anions does not change significantly upon transfer from the crystalline to the solution state.
ISSN:0108-2701
1600-5759
DOI:10.1107/S0108270101000014