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29. C11H17NCl2O4, P212121, a=5.534 (1), b=8.381 (2), c=30.916 (6) Å, V=1575.9 Å3, Z=8, reflections observed=1892,
wavelength: Cu–Kα radiation (λ=1.54184 Å), R1=0.040 and R2=0.060, diffractometer: Enraf–Nonius CAD4, scan mode:
ω-2θ, program: Enraf–Nonius Mo1EN.