Bruker APEXII CCD diffractometer	2282 independent reflections
Radiation source: fine-focus sealed tube	2089 reflections with I > 2σ(I)
graphite	Rint = 0.020
φ and ω scans	θmax = 28.2°, θmin = 3.1°
Absorption correction: multi-scan (SADABS; Bruker, 2008)	h = −6→6
Tmin = 0.824, Tmax = 1.000	k = −34→35
8332 measured reflections	l = −8→9