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Figure 9
Linear arrays of alternating heterochiral OC (a) and OH (b) dimers. In each ribbon, three heterochiral dimers are joined by two homochiral dimers of opposite type. In the crystalline state they polymerize into antiparallel or parallel helices. The antiparallel helices with opposite chirality [observed in 8C and III (Kálmán et al., 2001BB15)] are linked by heterochiral dimers (c) and (d).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 58| Part 5| September 2002| Pages 855-863
doi:10.1107/S0108768102009631
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