Enraf–Nonius CAD-4 diffractometer	Rint = 0.015
Radiation source: fine-focus sealed tube	θmax = 29.0º
Monochromator: graphite	θmin = 2.3º
T = 293(2) K	h = −5→2
ω–2θ scans	k = −14→0
Absorption correction: none	l = −21→0
1534 measured reflections	3 standard reflections
1051 independent reflections	every 200 reflections
866 reflections with I > 2σ(I)	intensity decay: <1%