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Figure 2
Part of the crystal structure of (II[link]), showing how the three independent anions (A, B and C) form ππ stacks along the b axis and dimers via strong hydrogen bonds (N—H⋯O). [Symmetry codes: (i) −x, 1 − y, 1 − z; (ii) −x, −y, 1 − z; (iii) x, 1 + y, z.]

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CHEMISTRY
ISSN: 2053-2296
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