Bruker Kappa APEXII CCD diffractometer	3885 independent reflections
Radiation source: fine-focus sealed tube	2825 reflections with I > 2σ(I)
graphite	Rint = 0.028
ω and φ scan	θmax = 27.0°, θmin = 2.2°
Absorption correction: multi-scan (SADABS; Bruker, 2004)	h = −9→10
Tmin = 0.945, Tmax = 0.956	k = −14→14
17066 measured reflections	l = −14→14