Bruker Kappa APEXII CCD diffractometer	2500 independent reflections
Radiation source: fine-focus sealed tube	1357 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.047
Detector resolution: 7.50 pixels mm-1	θmax = 28.3°, θmin = 3.0°
ω scans	h = −8→4
Absorption correction: multi-scan (SADABS; Bruker, 2005)	k = −7→8
Tmin = 0.957, Tmax = 0.966	l = −71→65
18805 measured reflections