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Figure 7
Valence of Cu in Na1.58CuO2. (a) Refined modulation functions; (b) modulation functions from Na1.6CuO2. Valences have been computed by the bond-valence method with the parameter R0[Cu—O] = 1.7133 Å obtained as the average of the parameters of Cu2+ and Cu3+ according to Brese & O'Keeffe (1991BB1). Full and dashed lines apply to the modulated and basic structures, respectively.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 63| Part 1| January 2007| Pages 17-25
doi:10.1107/S0108768106039462
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