Bruker SMART APEX diffractometer	7450 independent reflections
Radiation source: fine-focus sealed tube	5228 reflections with I > 2σ(I)
graphite	Rint = 0.029
Detector resolution: 8.33 pixels mm-1	θmax = 30.6°, θmin = 1.4°
ω scans	h = −10→8
Absorption correction: multi-scan (SADABS; Bruker, 2004)	k = −16→16
Tmin = 0.972, Tmax = 0.996	l = −22→22
17670 measured reflections