Enraf–Nonius TurboCAD-4 diffractometer	Rint = 0.041
graphite	θmax = 30.0°, θmin = 2.7°
non–profiled ω/2θ scans	h = 0→11
Absorption correction: ψ scan (North et al., 1968)	k = 0→25
Tmin = 0.795, Tmax = 0.902	l = −12→11
3705 measured reflections	3 standard reflections every 120 min
3487 independent reflections	intensity decay: 5%
2021 reflections with I > 2σ(I)