Bruker SMART CCD area-detector diffractometer	6633 independent reflections
Radiation source: fine-focus sealed tube	4090 reflections with I > 2σ(I)
graphite	Rint = 0.026
ω scans	θmax = 27.0°, θmin = 4.1°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −12→12
Tmin = 0.388, Tmax = 0.416	k = −16→15
9190 measured reflections	l = −17→11