Bruker APEXII DUO CCD area-detector diffractometer	17294 independent reflections
Radiation source: fine-focus sealed tube	13951 reflections with I > 2σ(I)
graphite	Rint = 0.035
φ and ω scans	θmax = 30.0°, θmin = 1.7°
Absorption correction: multi-scan (SADABS; Bruker, 2009)	h = −15→15
Tmin = 0.396, Tmax = 0.900	k = −17→17
60960 measured reflections	l = −31→31