Bruker APEXII CCD detector diffractometer	4187 independent reflections
Radiation source: fine-focus sealed tube	3834 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.025
ω and φ scans	θmax = 26.0°, θmin = 2.6°
Absorption correction: multi-scan (SADABS; Sheldrick, 2003)	h = −11→10
Tmin = 0.940, Tmax = 0.964	k = −12→13
21582 measured reflections	l = −13→13