Bruker APEXII CCD diffractometer	2131 reflections with I > 2σ(I)
Radiation source: sealed tube	Rint = 0.090
graphite	θmax = 28.3°, θmin = 2.4°
φ and ω scans	h = −19→10
23612 measured reflections	k = −11→9
5658 independent reflections	l = −41→49