High-pressure X-ray diffraction of L-ALANINE crystal

J.S. Olsen, Leif Gerward, A.G. Souza, P.T.C. Freire, J. Mendes, F.E.A. Melo

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

L-ALANINE has been studied by X-ray diffraction at ambient temperature and pressure up to 10.3 GPa. The material is found to transform to a tetragonal structure between 2 and 3 GPa. and to a monoclinic structure between 8 and 10 GPa. The experimental bulk modulus is 25(5) GPa for the orthorhombic phase. The results are compared with previous measurements of L-ALANINE.
Original languageEnglish
JournalHigh Pressure Research
Volume26
Issue number4
Pages (from-to)433-437
ISSN0895-7959
Publication statusPublished - 2006

Keywords

  • equation of state
  • amino acid
  • phase transformation
  • transition pressure
  • bulk modulus
  • X-ray diffraction

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