Bruker APEXII CCD diffractometer	1467 reflections with I > 2σ(I)
φ and ω scans	Rint = 0.035
Absorption correction: multi-scan (SADABS; Bruker, 2013)	θmax = 26.8°, θmin = 1.7°
Tmin = 0.898, Tmax = 0.959	h = −4→4
6425 measured reflections	k = −12→12
2000 independent reflections	l = −16→16