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Figure 4
Projection along the c axis of (a) the [Ag9Cu(S,Se)2Se2]2+ B (B′) module layer of the lower-temperature Se-rich antimonpearceite structure and (b) the [Ag9CuS4]2+ B (B′) module layer of the 221-polybasite structure (Evain et al., 2006BB8). The sulfur environment around Cu is highlighted by thin S–S connecting lines.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
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