Bruker APEXII CCD diffractometer	9327 independent reflections
Radiation source: sealed tube	6401 reflections with I > 2σ(I)
graphite	Rint = 0.098
Detector resolution: 512 pixels mm-1	θmax = 28°, θmin = 2.0°
φ and ω scans	h = −10→6
Absorption correction: multi-scan (SADABS; Bruker, 2004)	k = −15→16
Tmin = 0.887, Tmax = 0.937	l = −27→27
26016 measured reflections