Bruker APEXII CCD diffractometer	1444 reflections with I > 2σ(I)
φ and ω scans	Rint = 0.034
Absorption correction: multi-scan (SADABS; Bruker 2013)	θmax = 27.5°, θmin = 1.3°
Tmin = 0.661, Tmax = 0.746	h = −6→7
4593 measured reflections	k = −2→6
2016 independent reflections	l = −38→40