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Figure 6
The crystal structure of the second high-pressure phase of Rb2S (P63/mmc, Z = 2) at 5.1 GPa, projected along the b axis. As in Fig. 3[link], light and dark grey circles represent Rb and S atoms. Its Ni2In-type structure has been outlined by drawing the Rb—Rb contacts forming the trigonal prisms where the S atoms are inserted. The S atoms are coordinated by 11 Rb atoms, six of them corresponding to the apices of the prism and five extra Rb atoms belonging to adjacent chains (dashed lines). These adjacent chains of trigonal prisms are shifted by half the projection axis.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 67| Part 2| February 2011| Pages 109-115
doi:10.1107/S010876811005370X
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