Pressure-induced phase transitions in crystalline L-serine studied by single-crystal and high-resolution powder X-ray diffractionстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Pressure induces two isosymmetric reversible polymorphic transitions in L-serine related to a junipwise change in the hydrogen bond networks and the conformation of the zwitter-ions. Single-crystal X-ray diffraction in situ allowed to find the structure of L-serine III at 8.0 GPa (the phase was previously reported based on Raman spectra [Kolesnik et al., Doklady Chem. 404 (2005) 169]). High-resolution X-ray powder diffraction data with a synchrotron radiation source suggest the formation of a superstructure with a and c parameters tripled as compared with the single-crystal model. (c) 2006 Elsevier B.V. All rights reserved.