Bruker APEXII CCD diffractometer	4868 independent reflections
Radiation source: fine-focus sealed tube	3305 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.117
ω–2θ scans	θmax = 30.1°, θmin = 2.2°
Absorption correction: multi-scan (SADABS; Bruker, 2009)	h = −13→13
Tmin = 0.792, Tmax = 0.881	k = −13→13
14477 measured reflections	l = −26→26