. 2015 May 30;71(Pt 6):726–729. doi: 10.1107/S205698901501021X

Table 1. Geometric parameters (, ) of diselenide and disulfide bridges.

Compound	CSe/CS	SeSe/SS	CCSe/S	CSe/SSe/S	CCSe/SSe/S	CSe/SSe/SC
(I)	1.9671(18)	2.3213(4)	113.96(12)	100.88(5)	88.72(12)	83.05(10)
Average^a	1.967	2.310	114.17	101.29
(II)^b	1.817	2.040	114.48	103.40	89.04	81.04

Notes: (a) average of 16 CH₂SeSeCH₂ bridges in acyclic non-amino acid structures; (b) Leela Ramamurthi (2007 ▸).