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Martin Ellner, M. Beck, Eric J. Mittemeijer

The structure of the palladium-rich boride Pd₅B (Pd₁₆B₃)

The low-temperature boride Pd₅B (Pd₁₆B₃) forms
congruently from the corresponding interstitial solid solu-tion Pd(B) (Pearson-Parthé symbol cF(8-x), space group Fm3m) at 658 K. The structure of Pd₅B has been investi-gated by X-ray powder diffraction yielding the following structural data: I4/mmm, tI2.38; unit cell parameters a = 0.28490(4) nm, c = 0.40038(9) nm, c/a = 1.405 < v2, with the occupation 2Pd (a) and 0.19 x 2B (b). The crystal chemical data of Pd₅B and some other homeotypic intersti-tial compounds of transition metals have been compared.

Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0044-2968
Volume: 216, 11/2001
Pages: 591

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