Bruker APEXII CCD diffractometer	2132 reflections with I > 2σ(I)
φ and ω scans	Rint = 0.049
Absorption correction: multi-scan (SADABS; Krause et al., 2015)	θmax = 25.4°, θmin = 2.1°
Tmin = 0.629, Tmax = 0.745	h = −4→4
8133 measured reflections	k = −21→31
2746 independent reflections	l = −17→18