Nonius KappaCCD diffractometer	7650 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.048
Detector resolution: 9 pixels mm-1	θmax = 29.9°, θmin = 3.4°
CCD scans	h = −22→22
59628 measured reflections	k = −17→18
9468 independent reflections	l = −20→21