Kinetic Control of High-Pressure Solid-State Phase Transitions: A Case Study on l-Serine | Sciact - CRIS-system of Boreskov Institute of Catalysis

Kinetic Control of High-Pressure Solid-State Phase Transitions: A Case Study on l-Serine Full article

Journal

The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455

Output data

Year: 2015, Volume: 119, Number: 32, Pages: 18611-18617 Pages count : 7 DOI: 10.1021/acs.jpcc.5b05838

Tags

Amino acids, X ray diffraction, Compression rates, Critical pressures, High-pressure behavior, High-pressure solids, Interconversions, Pressure increase, Solid state transformations, Synchrotron powder X-ray diffractions

Authors

Fisch M. ^1,2 , Lanza A. ^1,2 , Boldyreva E. ^3,4 , Macchi P. ¹ , Casati N. ²

Affiliations

1	Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern, Switzerland
2	Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
3	Institute of Solid State Chemistry and Mechanochemistry, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russian Federation
4	Novosibirsk State University, Novosibirsk, Russian Federation

Funding (2)

1	Russian Science Foundation	14-13-00834
2	Swiss National Science Foundation	144534

This study demonstrates that the compression rate adds a new perspective to phase diagrams of solids. A particular pressure increase rate may trigger unexpected solid-state transformations, producing otherwise inaccessible phases. Our test case is l-serine, characterized by a complex high-pressure behavior with three known polymorphs. However, the critical pressure of each transition, the ranges of coexistence of polymorphs, and the existence of an elusive fourth phase remained open questions, here analyzed and solved using synchrotron powder X-ray diffraction at high pressure, under controlled pressure increase rates. Two parallel paths exist, and the composition of the system depends on the pressure increase rate and the steps during the compression. A slow and continuous compression favors phase IV, whereas phase II can be observed only with a rapid and sharp compression. No direct interconversion occurs between these phases. Moreover, phase III originates only from phase II but never from phase IV. By controlling the strategy of pressure increase, we obtained a powder of phase IV that enabled solving its unknown structure, which resulted as a distorted superstructure of phase I with a tripled a-axis.

Fisch M. , Lanza A. , Boldyreva E. , Macchi P. , Casati N.
Kinetic Control of High-Pressure Solid-State Phase Transitions: A Case Study on l-Serine

The Journal of Physical Chemistry C. 2015. V.119. N32. P.18611-18617. DOI: 10.1021/acs.jpcc.5b05838 WOS Scopus РИНЦ ANCAN OpenAlex

Full text from publisher

Submitted:	Jun 18, 2015
Published online:	Jul 30, 2015
Published print:	Aug 13, 2015

Web of science:	WOS:000359683800066
Scopus:	2-s2.0-84939194884
Elibrary:	24007824
Chemical Abstracts:	2015:1188878
Chemical Abstracts (print):	163:250488
OpenAlex:	W2514088098

DB	Citing
Web of science	55
Scopus	56
OpenAlex	55