Enraf–Nonius CAD-4 diffractometer | 984 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.023 |
graphite | θmax = 25.4°, θmin = 2.4° |
ω/2θ scans | h = 0→9 |
Absorption correction: ψ scan (North et al., 1968) | k = 0→12 |
Tmin = 0.977, Tmax = 0.992 | l = −17→17 |
2387 measured reflections | 3 standard reflections every 200 reflections |
1241 independent reflections | intensity decay: 1% |