Bruker SMART APEXII CCD area-detector diffractometer	4187 independent reflections
Radiation source: fine-focus sealed tube	2889 reflections with I > 2σ(I)
graphite	Rint = 0.083
φ and ω scans	θmax = 25.0°, θmin = 1.6°
Absorption correction: multi-scan (SADABS; Bruker, 2005)	h = −34→42
Tmin = 0.832, Tmax = 0.862	k = −44→43
12887 measured reflections	l = −8→8