Bruker APEXII CCD diffractometer	1983 independent reflections
Radiation source: fine-focus sealed tube	1558 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.055
φ and ω scans	θmax = 25.3°, θmin = 2.9°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −13→12
Tmin = 0.938, Tmax = 0.989	k = −11→11
5135 measured reflections	l = −17→25