Oxford Diffraction Gemini diffractometer	4842 independent reflections
Radiation source: sealed tube	2698 reflections with I > 2σ(I)
graphite	Rint = 0.059
ω scans	θmax = 27.5°, θmin = 3.3°
Absorption correction: gaussian (CrysAlis RED; Oxford Diffraction, 2008)	h = −10→10
Tmin = 0.968, Tmax = 0.988	k = −11→11
10983 measured reflections	l = −21→21