Table 1. Crystallographic data-processing statistics.

Values in parentheses are for the highest resolution bin (approximate interval of 0.1 Å).

	TeGST	SeGST
Space group	P6522	P212121
Unit-cell parameters (Å)	a = 64.2, b = 64.2, c = 196.9	a = 76.7, b = 94.3, c = 101.4
Resolution (Å)	1.45	2.0
No. of observations	391235	612041
No. of unique reflections	43959	47422
Redundancy	8.9 (9.0)	12.9 (7.0)
Data completeness (%)	99.9 (100)	94.3 (72.3)
I/σ(I)	28.9 (3.3)	28.5 (3.0)
Rmerge† (%)	7.2 (68.1)	8.1 (42.2)

^† R _merge = , where I _i(hkl) is the intensity of the ith measurement of an equivalent reflection with indices hkl.