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Figure 18
Part of the crystal structure of compound (IV)[link] showing the linking of the ion pairs by a further N—H⋯O hydrogen bond to form a C22(6) chain running parallel to [001]. Hydrogen bonds are drawn as dashed lines and, for the sake of clarity, the minor disorder component and the H atoms bonded to C atoms have been omitted.

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COMMUNICATIONS
ISSN: 2056-9890
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