Neue Oxocuprate (I). Über Cs3Cu5O4, Rb2KCu5O4, RbK2Cu5O4 und K3Cu5O4 |
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Authors: | R Hoppe W Losert |
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Abstract: | New Oxocuprates(I). On Cs3Cu5O4, Rb2KCu5O4, RbK2Cu5O4 and K3Cu5O4 Cs3Cu5O4 light yellow, powder as well as single crystals a = 10.313(9), b = 7.630(1), c = 14.750(4) Å, β = 106.48(6)°], Rb2KCu5O4 a = 9.724(2), b = 7.443(0), c = 14.246(2) Å, β = 106.78(8)°], RbK2Cu5O4 a = 9.561(1), b = 7.411(0), c = 14.111(1) Å, β = 106.76(7)°] and K3Cu5O4 a = 9.422(1), b = 7.364(1), c = 13.995(2) Å, β = 107.00(2)°] are new prepared. The colour of the powders becomes lighter according to the sequence showed above. K3Cu5O4 shows pale yellow. The Madelung Part of Lattice Energy, MAPLE, is calculated and discussed. |
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