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![[Figure 7]](cu3072fig7mag.jpg)
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Figure 7
Partial packing diagrams showing the different conformations and different molecular arrangements in the crystal packing of some polymorphic forms. (a) The butyl chain is in an extended conformation and inversion-related molecules are interlinked by a urea tape motif in the centrosymmetric form of tolbutamide (CSD refcode ZZZPUS10; Nath & Nangia, 2011  ). (b) The folded conformation of the butyl chain and the screw-related molecules are held together by the urea tape motif in the noncentrosymmetric form of tolbutamide (ZZZPUS02; Donaldson et al., 1981). (c) The formation of an amide dimer in the centrosymmetric form of aripiprazole (MELFIT06; Nanubolu et al., 2012). (d) Amide catemer formation in the noncentrosymmetric form of aripiprazole (MELFIT02; Braun et al., 2009). |
![[Figure 7]](cu3072fig7.jpg)
 | STRUCTURAL CHEMISTRY |
ISSN: 2053-2296
