Bruker SMART APEXII CCD diffractometer	3478 independent reflections
Radiation source: rotating anode	2437 reflections with I > 2σ(I)
graphite multilayer	Rint = 0.055
Detector resolution: 10.0 pixels mm-1	θmax = 28.5°, θmin = 1.4°
φ and ω scans	h = −20→20
Absorption correction: multi-scan (SADABS; Bruker, 2009)	k = −6→7
Tmin = 0.934, Tmax = 0.952	l = −22→22
13601 measured reflections