Bruker SMART APEXII detector diffractometer	1550 independent reflections
Radiation source: fine-focus sealed tube	1273 reflections with I > 2σ(I)
graphite	Rint = 0.022
phi and ω scans	θmax = 25.5°, θmin = 3.0°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −12→12
Tmin = 0.961, Tmax = 0.976	k = −15→15
11505 measured reflections	l = −15→15