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Composition, Coordination and Valency in Lattice Compounds

✍ Scribed by A. D. Wadsley

Publisher
John Wiley and Sons
Year
1967
Tongue
German
Weight
636 KB
Volume
50
Category
Article
ISSN
0018-019X

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πŸ“œ SIMILAR VOLUMES

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Mbed valence compounds of platinum or palladium have a crystal structure that consists of long, linear chains. The frequencies of the three coIktive (phonon) longitudinal k = 0 optical modes bear little xelevance to those of lon&udinaI modes of the independent mokcutes, being different in general an

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A simple valence or haplotype crystal is defined as a valence crystal of binary composition \(A_{x} B_{y}\), with one coordination number, \(\mathrm{CN}(A)\), for all cations and one, \(\mathrm{CN}(B)\), for all anions. Valence crystals have electroneutral formulas with respect to formal atomic vale

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The new mixed-valence phases of copper and nickel \(\mathrm{Nd}_{2-x} A_{x} \mathrm{BaCu}_{1-y} \mathrm{Ni}_{y} \mathrm{O}_{5}(A=\mathrm{Ba}, \mathrm{Sr}, \mathrm{Ca})\) with the \(\mathrm{Nd}_{2} \mathrm{BaCuO}_{5}-\mathrm{type}\) structure were isolated. Structure calculations evidence a square pl