Oxford Diffraction Gemini PX Ultra CCD area-detector diffractometer	1958 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.017
graphite	θmax = 26.4°, θmin = 2.6°
ω and θ scans	h = −5→6
8520 measured reflections	k = −14→14
2981 independent reflections	l = −17→16