Bruker SMART APEXII CCD diffractometer	3423 independent reflections
Radiation source: fine-focus sealed tube	2777 reflections with I > 2σ(I)
Monochromator: graphite	Rint = 0.020
T = 173(2) K	θmax = 28.3º
ω and φ scans	θmin = 2.5º
Absorption correction: multi-scan(SADABS; Bruker, 2005)	h = −6→6
Tmin = 0.850, Tmax = 1.000	k = −26→26
8526 measured reflections	l = −19→15