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

DOI: 10.1107/S1600576720013710 DOI Help

Authors: Charles J. Mcmonagle (The University of Edinburgh; Newcastle University) , David R. Allan (Diamond Light Source) , Mark R. Warren (Diamond Light Source) , Konstantin V. Kamenev (The University of Edinburgh) , Gemma F. Turner (The University of Western Australia) , Stephen A. Moggach (The University of Western Australia)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Applied Crystallography , VOL 53

State: Published (Approved)
Published: December 2020
Diamond Proposal Number(s): 15190 , 14164

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.

Journal Keywords: high pressure; pressure cells; capillaries; single crystals; synchrotron radiation

Subject Areas: Technique Development


Instruments: I19-Small Molecule Single Crystal Diffraction