Bruker SMART APEX CCD area-detector diffractometer	3603 independent reflections
Radiation source: fine focus sealed Siemens Mo tube	3473 reflections with I > 2σ(I)
graphite	Rint = 0.032
0.3° wide ω exposures scans	θmax = 28.3°, θmin = 2.6°
Absorption correction: multi-scan (SADABS; Sheldrick, 2001)	h = −10→10
Tmin = 0.889, Tmax = 0.965	k = −7→7
9009 measured reflections	l = −21→21