Bruker APEXII CCD diffractometer	1867 independent reflections
Radiation source: fine-focus sealed tube	1692 reflections with I > 2σ(I)
graphite	Rint = 0.037
φ and ω scans	θmax = 28.3°, θmin = 3.9°
Absorption correction: multi-scan (SADABS; Bruker, 2010)	h = −4→5
Tmin = 0.588, Tmax = 1.000	k = −12→12
7436 measured reflections	l = −25→24