Pressure-induced phase transition in hydrogen-bonded molecular crystal acetamide: combined Raman scattering and X-ray diffraction study

RSC Advances ◽  
2015 ◽  
Vol 5 (103) ◽  
pp. 84703-84710 ◽  
Author(s):  
Lei Kang ◽  
Kai Wang ◽  
Shourui Li ◽  
Xiaodong Li ◽  
Bo Zou
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Raman Scattering ◽  
Diffraction Study ◽  
Molecular Crystal ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
X Ray Diffraction ◽  
X Ray

Two structural phase transitions are observed at ∼0.9 and ∼3.2 GPa in acetamide using in situ synchrotron X-ray diffraction (XRD) and Raman scattering techniques.

X-ray diffraction and Raman study of DL-alanine at high pressure: revision of phase transitions

2012 ◽  
Vol 68 (4) ◽  
pp. 412-423 ◽  
Author(s):  
Nikolay A. Tumanov ◽  
Elena V. Boldyreva
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Structural Phase ◽  
Group Symmetry ◽  
Second Phase ◽  
Structural Phase Transitions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cell Parameters ◽  
Raman Study

The effect of pressure on DL-alanine has been studied by X-ray powder diffraction (up to 8.3 GPa), single-crystal X-ray diffraction and Raman spectroscopy (up to ∼ 6 GPa). No structural phase transitions have been observed. At ∼ 1.5–2 GPa, cell parameters b and c become accidentally equal to each other, but the space-group symmetry does not change. There is no phase transition between 1.7 and 2.3 GPa, contrary to what has been reported earlier [Belo et al. (2010). Vibr. Spectrosc. 54, 107–111]. The presence of the second phase transition, which was claimed to appear within the pressure range from 6.0 to 7.3 GPa (Belo et al., 2010), is also argued. The changes in the Raman spectra have been shown to be continuous in all the pressure ranges studied.

X-Ray Diffraction Study on the Structural Phase Transitions of (KCN)x(KBr) 1-x Mixed Crystals

1999 ◽  
Vol 68 (10) ◽  
pp. 3292-3302 ◽  
Author(s):  
Yukio Yoshimura ◽  
Toshiharu Okazaki ◽  
Tokio Tsuruta ◽  
Sachio Fujita ◽  
Atsushi Ishikawa ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Diffraction Study ◽  
Structural Phase ◽  
Mixed Crystals ◽  
Structural Phase Transitions ◽  
X Ray Diffraction ◽  
X Ray

Mössbauer and X-ray diffraction study of structural phase transitions in LaMnO3 + δ

2007 ◽  
Vol 71 (9) ◽  
pp. 1249-1252 ◽  
Author(s):  
V. D. Sedykh ◽  
V. Sh. Shekhtman ◽  
I. I. Zver’kova ◽  
A. V. Dubovitskii ◽  
V. I. Kulakov
Keyword(s):  
Phase Transitions ◽  
Diffraction Study ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals X-ray diffraction study of the temperature-induced structural phase transitions in SmVO3

2012 ◽  
Vol 85 (22) ◽  
Author(s):  
R. D. Johnson ◽  
C. C. Tang ◽  
I. R. Evans ◽  
S. R. Bland ◽  
D. G. Free ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Diffraction Study ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
X Ray Diffraction ◽  
X Ray
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