Bruker SMART APEX area-detector diffractometer	2557 independent reflections
Radiation source: normal-focus sealed tube	2235 reflections with I > 2σ(I)
graphite	Rint = 0.022
ω scans	θmax = 28.3°, θmin = 2.4°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −25→25
Tmin = 0.333, Tmax = 0.482	k = −13→13
13642 measured reflections	l = −18→18