Quininium (R)-mandelate, a structure with large Z′ described as an incommensurately modulated structure in (3+1)-dimensional superspace

Schönleber, A.; Chapuis, G.

doi:10.1107/S0108768103027605

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 6
Sequence of the formula units in the 3 × 5 superstructure approximation of quininium (R)-mandelate (only the non-H atoms are shown). For clarity, the orientations and the scaling of (a)–(d) differ. (a) The complete quininium cations and the mandelate anions. (b) The quinoline moieties of the quininium cations, showing a strong undulation. (c) The phenyl rings of the mandelate anions, showing a slight undulation and some displacement. (d) The vinyl groups, showing the two preferred orientations.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 60| Part 1| January 2004| Pages 108-120

doi:10.1107/S0108768103027605

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