Table 1. Data-collection and refinement details of the P2₁2₁2₁ structure.

Values in parentheses are for the last shell.

Resolution (Å)	1.54
Completeness (%)	90.8 (94.2)
Rmerge (%)	5.3 (35.78)
Unit-cell parameters (Å)	a = 17.95, b = 30.84, c = 44.60
No. of reflections	3000
Multiplicity	5.04
Mean I/σ(I)	4.7
R factor (%)	18.9
Rfree (%)	22.3