Effect of pressure on the crystal structure of α-glycylglycine to 4.7 GPa; application of Hirshfeld surfaces to analyse contacts on increasing pressure

Moggach, S.A.; Allan, D.R.; Parsons, S.; Sawyer, L.

doi:10.1107/S0108768105042072

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

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Figure 5
(a) Ball-and-stick model showing the formation of R²₄(8) ring motifs via CH⋯O hydrogen bonds acting between layers of GLYGLY molecules, CH⋯O hydrogen bonds are drawn as orange dotted lines. Space-filling plots of R²₄(8) ring motifs at (b) ambient pressure and (c) 4.7 GPa are shown, drawn at the same scale and direction. In both (b) and (c), only those atoms involved in the formation of the ring, carbonyl C atoms and ammonium groups are shown for clarity. The colour scheme is the same as that in Fig. 2

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 62| Part 2| March 2006| Pages 310-320

doi:10.1107/S0108768105042072

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