Packing modes of (R,R)-tartaric acid esters and amides

Rychlewska, U.; Warżajtis, B.

doi:10.1107/S0108768100004274

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

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Figure 8
Ring patterns: (a) the R₁²(5) pattern (HOH2) with the α-hydroxycarboxyl group functioning as a double acceptor (the donor is the water solvent molecule). Note that the a conformation adopted by primary and secondary α-hydroxyamide groups precludes the double acceptor function of these fragments; (b) the R₂¹(7) pattern with the α-hydroxyamide moiety functioning as a double donor (HN11).

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 56| Part 5| October 2000| Pages 833-848

doi:10.1107/S0108768100004274

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