Rigaku Mercury CCD diffractometer	1224 reflections with I > 2σ(I)
ω scans	Rint = 0.029
Absorption correction: multi-scan (CrystalClear; Rigaku, 2012)	θmax = 27.5°, θmin = 2.5°
Tmin = 0.282, Tmax = 0.557	h = −17→17
6485 measured reflections	k = −6→5
1258 independent reflections	l = −20→19