Bruker Kappa APEXII DUO CCD diffractometer	5482 independent reflections
Radiation source: fine-focus sealed tube	4470 reflections with I > 2σ(I)
Curved graphite crystal monochromator	Rint = 0.024
Detector resolution: 16 pixels mm-1	θmax = 27.7°, θmin = 1.7°
φ and ω scans with κ offset	h = −10→10
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	k = −15→15
Tmin = 0.818, Tmax = 0.910	l = −16→16
18588 measured reflections