Zur Synthese und Kristallstruktur von Kupfercadmiumpyroboratoxid: Cu2Cd(B2O5)O / Synthesis and Crystal Structure of Copper Cadmium Pyroborate Oxide: Cu2Cd(B2O5)O
2014
Münchau, Sabine | Bluhm, Karsten
Single crystals of the new compound Cu₂Cd(B₂O₅)O have been prepared by B₂O₃/V₂O₅ flux technique in a closed silver tube. Their structure is isotypic with Cu₂Co(B₂O₅)O but its preparation is quite different. X-ray investigations on single crystals led to the space group C⁵₂ₕ-P2₁/c (Nr. 14), a = 339.9(2); b = 1509.8(2); c = 927,0(1) pm; β = 93.19(1)°; Z = 4. The structure contains isolated B₂O₅ groups and oxygen that is not coordinated to boron. Cadmium is octahedrally coordinated by oxygen, while copper exhibits a nearly square planar or a fivefold pyramidal coordination.
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