Bruker SMART APEXII CCD diffractometer	11497 independent reflections
Radiation source: fine-focus sealed tube	8871 reflections with I > 2σ(I)
graphite	Rint = 0.040
φ and ω scans	θmax = 29.0°, θmin = 0.9°
Absorption correction: multi-scan (SADABS; Bruker, 2009)	h = −12→12
Tmin = 0.965, Tmax = 0.983	k = −13→13
44431 measured reflections	l = −31→31