Nonius KappaCCD diffractometer	3818 independent reflections
Radiation source: fine-focus sealed tube	3142 reflections with I > 2σ(I)
graphite	Rint = 0.038
Detector resolution: 9 pixels mm-1	θmax = 27.5°, θmin = 2.9°
φ scans and ω scans with κ offsets	h = −22→20
Absorption correction: multi-scan (SORTAV; Blessing, 1995)	k = −24→26
Tmin = 0.798, Tmax = 0.897	l = −10→12
10930 measured reflections