Nonius KappaCCD diffractometer	4433 independent reflections
Radiation source: fine-focus sealed tube	3150 reflections with I > 2σ(I)
graphite	Rint = 0.103
Detector resolution: 9.1 pixels mm-1	θmax = 27.5°, θmin = 1.3°
ω scans at fixed χ = 55°	h = −7→7
Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997)	k = −13→13
Tmin = 0.918, Tmax = 0.983	l = −39→40
37270 measured reflections