A comparative study of pressure-induced lattice strain of α- and γ-polymorphs of glycine

被引：66

作者：

Boldyreva, EV

Ahsbahs, H

Weber, HP

机构：

[1] Novosibirsk State Univ, Res & Educ Ctr MDEST, Dept Solid State Chem, Novosibirsk 6300090, Russia

[2] Russian Acad Sci, Inst Solid State Cem & Mechanochem, Novosibirsk 630128, Russia

[3] Univ Marburg, Inst Mineral, D-35032 Marburg, Germany

[4] European Synchrotron Radiat Facil, Swiss Norwegian Beamline, F-38043 Grenoble, France

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 2003年 / 218卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1524/zkri.218.3.231.20749

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The effect of hydrostatic pressure up to 4 GPa on the two polymorphs of glycine (alpha - s.g. P2(1)/n, and gamma - s.g. P3(1) (P3(2))) was studied by X-ray powder diffraction using a synchrotron radiation source (lambda = 0.7 Angstrom, a MAR345 image plate detector). No polymorphic transformations were detected. Relative volume changes and the anisotropy of structural distortion of the two polymorphs were compared. The directions of maximum and minimum lattice strain were related to the directions of weak and strong hydrogen bonds in the structures.

引用

页码：231 / 236

页数：6

共 41 条

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