Bruker SMART APEXII CCD diffractometer	6206 independent reflections
Radiation source: fine-focus sealed tube	4862 reflections with I > 2σ(I)
graphite	Rint = 0.037
φ and ω scans	θmax = 27.5°, θmin = 2.1°
Absorption correction: multi-scan (SADABS; Bruker, 2005)	h = −8→8
Tmin = 0.962, Tmax = 0.991	k = −22→22
38064 measured reflections	l = −29→29