Bruker SMART APEXII CCD area-detector diffractometer	9044 independent reflections
Radiation source: fine-focus sealed tube	5978 reflections with I > 2σ(I)
graphite	Rint = 0.053
φ and ω scans	θmax = 30.1°, θmin = 1.3°
Absorption correction: multi-scan (SADABS; Bruker, 2005)	h = −8→7
Tmin = 0.948, Tmax = 0.996	k = −21→21
35167 measured reflections	l = −24→23