Bruker SMART 1000 CCD diffractometer	3713 independent reflections
Radiation source: fine-focus sealed tube	3026 reflections with I > 2σ(I)
Monochromator: graphite	Rint = 0.042
T = 173(2) K	θmax = 27.0º
ω scans	θmin = 1.9º
Absorption correction: multi-scan(SADABS; Sheldrick, 2003)	h = −16→15
Tmin = 0.954, Tmax = 0.988	k = −16→19
18319 measured reflections	l = −16→19