Bruker APEX CCD area-detector diffractometer	5044 independent reflections
Radiation source: fine-focus sealed tube	4821 reflections with I > 2σ(I)
graphite	Rint = 0.023
φ and ω scans	θmax = 28.1°, θmin = 2.8°
Absorption correction: multi-scan (SADABS; Bruker, 1998)	h = −10→10
Tmin = 0.804, Tmax = 0.885	k = −13→13
10484 measured reflections	l = −18→18