Table 2. Data-collection and processing statistics.

Values in parentheses are for the outer shell.

Diffraction source	Rigaku RU-200 rotating anode
Wavelength (Å)	1.5418
Temperature (K)	293
Detector	180 mm MAR Research image plate
Crystal-to-detector distance (mm)	120
Rotation range per image (°)	1.5
Total rotation range (°)	129
Exposure time per image (s)	240
Space group	P43212
Unit-cell parameters (Å)	a = b = 37.16, c = 114.98
Mosaicity (°)	0.48
Resolution range (Å)	35.36–2.50 (2.64–2.50)
Total No. of reflections	15197
No. of unique reflections	3127
Completeness (%)	99.0 (100)
Multiplicity	4.9 (5.0)
〈I/σ(I)〉	5.8 (3.1)
R r.i.m. †	0.111 (0.235)
Overall B factor from Wilson plot (Å2)	30.2

^†Estimated R _r.i.m. = R _merge[N/(N − 1)]^1/2, where N is the data multiplicity.