Bruker SMART APEX diffractometer	3774 independent reflections
Radiation source: fine-focus sealed tube	2730 reflections with I > 2σ(I)
graphite	Rint = 0.015
φ and ω scans	θmax = 27.7°, θmin = 3.1°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −8→12
Tmin = 0.947, Tmax = 0.984	k = −21→16
7411 measured reflections	l = −12→13