Bruker SMART APEXII CCD diffractometer	3534 independent reflections
Radiation source: fine-focus sealed tube	2144 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.080
φ and ω scans	θmax = 26.5°, θmin = 2.2°
Absorption correction: multi-scan (SADABS; Bruker, 2009)	h = −12→11
Tmin = 0.939, Tmax = 0.973	k = −16→19
10508 measured reflections	l = −15→15