Bruker SMART APEXII CCD diffractometer	3477 independent reflections
Radiation source: rotating anode	3276 reflections with I > 2σ(I)
graphite multilayer	Rint = 0.033
Detector resolution: 10.0 pixels mm-1	θmax = 27.5°, θmin = 2.1°
φ and ω scans	h = −11→11
Absorption correction: multi-scan (SADABS; Bruker, 2009)	k = −12→11
Tmin = 0.603, Tmax = 0.666	l = −13→13
13286 measured reflections