Bruker APEXII DUO CCD diffractometer	28473 independent reflections
Radiation source: fine-focus sealed tube	20091 reflections with I > 2σ(I)
graphite	Rint = 0.056
φ and ω scans	θmax = 32.4°, θmin = 1.9°
Absorption correction: multi-scan (SADABS; Bruker, 2009)	h = −34→34
Tmin = 0.758, Tmax = 0.932	k = −26→29
107136 measured reflections	l = −25→27