Stoe IPDSII diffractometer	2394 independent reflections
Monochromator: plane graphite	1890 reflections with I > 2σ(I)
Detector resolution: 6.67 pixels mm-1	Rint = 0.035
T = 296 K	θmax = 26.0º
w–scan rotation method	θmin = 1.6º
Absorption correction: integration(X-RED32; Stoe & Cie, 2002)	h = −16→16
Tmin = 0.952, Tmax = 0.969	k = −7→7
14223 measured reflections	l = −19→19