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Figure 4
Balls-and-stick (a) and polyhedral (b) representations of the crystal structure of K2Cu3(SO4)4 along the a axis. Legend: Cu1O6, Cu2O6, Cu3O5 polyhedra = blue; Cu4O4 squares = dark blue; SO4 tetrahedra = yellow. The [Cu3(SO4)4]2− framework can be split into zigzag layers (c) highlighted by the red dashed line in (b). The layers consist of porous bands [polyhedral representation (d) and graph (e)].

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 54| Part 1| February 2021| Pages 237-250
https://doi.org/10.1107/S1600576720015824
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