Copper–lead selenite bromides: a new large family of compounds partly having Cu2+ substructures derivable from kagome nets

Siidra, O.; Kozin, M.S.; Depmeier, W.; Kayukov, R.A.; Kovrugin, V.M.

doi:10.1107/S2052520618016542

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 11
Cu²⁺ substructures in CuPbOXO-1, CuPbOXO-2, CuPbOXO-3 and CuPbOXO-4. One-dimensional kagome-like fragments in CuPbOXO-1 are formed by Cu2–Cu2–Cu3 and Cu2–Cu2–Cu1 triangles. Cu2–Cu2–Cu3 triangles are complemented by additional Cu4 atoms above or below triangular faces. Double but also one-dimensional kagome-like fragments in CuPbOXO-2 are formed by Cu2–Cu4–Cu4, Cu3–Cu4–Cu4 and Cu3–Cu6–Cu6 triangles. Cu2–Cu4–Cu4 and Cu3–Cu6–Cu6 triangles are complemented by Cu1 and Cu5 atoms, respectively. Kagome sheets are formed in CuPbOXO-3 with half of triangles also complemented by additional Cu²⁺ above or below triangular faces. Additional Cu²⁺ cations are absent above or below undulated kagome sheets in CuPbOXO-4. Distances are in Å.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 74| Part 6| December 2018| Pages 712-724

https://doi.org/10.1107/S2052520618016542

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