Bruker SMART CCD area-detector diffractometer	3312 independent reflections
Radiation source: fine-focus sealed tube	2709 reflections with I > 2σ(I)
graphite	Rint = 0.091
phi and ω scans	θmax = 28.3°, θmin = 2.1°
Absorption correction: integration (SADABS; Bruker, 1999)	h = −14→14
Tmin = 0.294, Tmax = 0.457	k = −11→14
25347 measured reflections	l = −31→31