Nonius KappaCCD diffractometer	5171 independent reflections
Radiation source: fine-focus sealed tube	4253 reflections with I > 2σ(I)
horizontally mounted graphite crystal	Rint = 0.048
Detector resolution: 9 pixels mm-1	θmax = 27.5°, θmin = 2.4°
φ scans and ω scans with κ offset	h = −10→10
Absorption correction: multi-scan (SADABS; Version 2008/1; Sheldrick, 2008)	k = −13→13
Tmin = 0.743, Tmax = 0.977	l = −18→18
21551 measured reflections