Bruker SMART APEX diffractometer	2882 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.046
graphite	θmax = 27.5°, θmin = 2.2°
ω scans	h = −12→12
13257 measured reflections	k = −16→15
3298 independent reflections	l = −15→15