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Figure 1
Comparison of the structures of three [Bi2S3]2·[AgBiS2](N−1)/2 homologues, viz. (a) `AgBiS9' (N = 4), (b) Ag2Bi6S10 (N = 5, pavonite) and (c) Ag3Bi7S12 (N = 7). Bi atoms are represented by black spheres, Ag/Bi by medium-grey spheres and S atoms by light-grey spheres. |