Bruker SMART APEX diffractometer	3942 independent reflections
Radiation source: fine-focus sealed tube	3605 reflections with I > 2σ(I)
graphite	Rint = 0.013
ω scans	θmax = 27.5°, θmin = 1.4°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −6→8
Tmin = 0.807, Tmax = 1.000	k = −12→12
6268 measured reflections	l = −19→19