Bruker SMART CCD area-detector diffractometer	3366 independent reflections
Radiation source: fine-focus sealed tube	2045 reflections with I > 2σ(I)
graphite	Rint = 0.075
ω scans	θmax = 27.0°, θmin = 2.0°
Absorption correction: multi-scan (SADABS; Bruker, 2001)	h = −8→8
Tmin = 0.308, Tmax = 0.318	k = −16→15
12695 measured reflections	l = −22→22