Hydrogen bonding in two solid phases of phenazine–chloranilic acid (1/1) determined at 170 and 93 K

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Hydrogen bonding in two solid phases of phenazine-chloranilic acid (1/1) determined at 170 and 93 K.

The crystal structures in two solid phases, i.e. phase II stable between 146 and 253 K and phase IV below 136 K, of the title compound [phenazine-chloranilic acid (1/1), C12H8N2.C6H2Cl2O4, in phase II, and phenazinium hydrogen chloranilate, C12H9N2+.C6HCl2O4-, in phase IV], have been determined. Both phases crystallize in P2(1), and each structure was refined as an inversion twin. In phase II, ...

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The title compound, C(7)H(8)NO(2) (+)·H(2)PO(3) (-), is formed from alternating layers of organic cations and inorganic anions stacked along the a-axis direction. They are associated via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonding, giving rise to two different R(2) (2)(8) graph-set motifs and generating a three-dimensional network.

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ژورنال

عنوان ژورنال: Acta Crystallographica Section C Crystal Structure Communications

سال: 2006

ISSN: 0108-2701

DOI: 10.1107/s0108270106049468