Effect of pressure on crystalline l- and dl-serine: revisited by a combined single-crystal X-ray diffraction at a laboratory source and polarized Raman spectroscopy study

Zakharov, B.A.; Kolesov, B.A.; Boldyreva, E.V.

doi:10.1107/S0108768112015960

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

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Figure 5
Changes in the interatomic distances of selected hydrogen bonds in DL-serine versus pressure: (a) N1—H1A⋯O3 ( $[\textstyle{{1\over 2}-x, -{1\over 2}+y, {1\over 2}-z}]$ ), (b) N1—H1B⋯O2 ( $[\textstyle{{1\over 2}+x, {1\over 2}-y, {1\over 2}+z}]$ ), (c) N1—H1C⋯O3 ( $[\textstyle{{3\over 2}-x, -{1\over 2}+y, {1\over 2}-z}]$ ), (d) N1—H1B⋯O3 ( $[\textstyle{{1\over 2}+x, {1\over 2}-y, {1\over 2}+z}]$ ), (e) O2—H2⋯O1 ( $[\textstyle{{1\over 2}-x, -{1\over 2}+y, {1\over 2}-z}]$ ); and in L-serine versus pressure: (f) N1—H3⋯O2 (-1+x, y, z), (g) N1—H3⋯O1 (-1+x, y, z), (h) N1—H2⋯O2 ( $[\textstyle{-{1\over 2}+x, {1\over 2}-y, 2-z}]$ ), (i) N1—H1⋯O1 ( $[\textstyle{1-x, {1\over 2}+y, {3\over 2}-z}]$ ), (j) O3—H5⋯O3 ( $[\textstyle{-{1\over 2}+x, {1\over 2}-y, 1-z}]$ ). The figures contain data from several publications: Present contribution (black circles); Moggach et al. (2005