Table 1. Data collection, processing and scaling.

Values in parentheses are for the outer shell.

X-ray source	Rigaku RU-200 rotating anode
Detector	SDMS dual multiwire detectors
Molecules in asymmetric unit	2
Mosaicity (°)	0.8
Resolution (Å)	80.0–1.85 (1.89–1.85)
No. of observations	17597
No. of unique reflections	2291 (313)
X-ray wavelength (Å)	1.54
CC1/2	0.947 (0.529)
R merge	0.257 (0.540)
R meas	0.283 (0.643)
R p.i.m.	0.086 (0.295)
Completeness (%)	99.6 (62.4)
Multiplicity	7.7 (4.2)
〈I/σ(I)〉	6.3 (2.2)
No. of batches	11
No. of crystals	2