Bruker APEX CCD area-detector diffractometer	1254 independent reflections
Radiation source: fine-focus sealed tube	1172 reflections with I > 2s(I)
graphite	Rint = 0.022
Frames, each covering 0.3 ° in ω scans	θmax = 25.5°, θmin = 1.7°
Absorption correction: multi-scan (SADABS; Bruker, 2003)	h = −30→30
Tmin = 0.916, Tmax = 1.000	k = −5→5
7171 measured reflections	l = −13→13