Bruker SMART APEXII CCD area-detector diffractometer	3687 independent reflections
Radiation source: fine-focus sealed tube	3452 reflections with I > 2σ(I)
graphite	Rint = 0.011
φ and ω scans	θmax = 25.0°, θmin = 2.0°
Absorption correction: multi-scan (SADABS; Bruker, 2005)	h = −11→11
Tmin = 0.677, Tmax = 0.751	k = −12→12
5440 measured reflections	l = −13→5