Bruker Kappa APEXII CCD diffractometer	1921 independent reflections
Radiation source: fine-focus sealed tube	1244 reflections with I > 2σ(I)
graphite	Rint = 0.025
φ and ω scans	θmax = 28.3°, θmin = 2.8°
Absorption correction: multi-scan (SADABS; Bruker, 2007)	h = −9→9
Tmin = 0.226, Tmax = 0.440	k = −10→10
8084 measured reflections	l = −10→10