Abstract
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 language | English |
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Pages (from-to) | 1519-1523 |
Number of pages | 5 |
Journal | Journal of Applied Crystallography |
Volume | 53 |
DOIs | |
Publication status | Published - 1 Dec 2020 |