High-pressure sapphire capillary cell for synchrotron single-crystal X-ray diffraction measurements to 1500 bar

Charles J. McMonagle, David R. Allan, Mark R. Warren, Konstantin V. Kamenev, Gemma F. Turner, Stephen A. Moggach*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A new sapphire capillary pressure cell for single-crystal X-ray diffraction measurements at moderate pressures (200-1500 bar; 1 bar = 100 kPa) has been developed and optimized for use on beamline I19 at Diamond Light Source. The three-component cell permits optical centring of the crystal and in situ pressure modification to a precision of 1 bar. Compression of hexamethylenetetramine and its deuterated analogue to 1000 bar was performed, showcasing the accuracy and precision of the measurements, and highlighting evidence of a geometric isotope effect.

Original languageEnglish
Pages (from-to)1519-1523
Number of pages5
JournalJournal of Applied Crystallography
Volume53
Issue number6
Early online date17 Nov 2020
DOIs
Publication statusPublished - 1 Dec 2020

Keywords / Materials (for Non-textual outputs)

  • Capillaries
  • High pressure
  • Pressure cells
  • Single crystals
  • Synchrotron radiation

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