New Ternary Phosphide La7Pd17P12: Preparation and Crystal Structure

Budnyk, S.; Prots, Y.; Kuz'ma, Y.; Grin, Y.

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New Ternary Phosphide La₇Pd₁₇P₁₂: Preparation and Crystal Structure

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Budnyk, S.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Prots, Y.
Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Kuz'ma, Y.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Grin, Y.
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Budnyk, S., Prots, Y., Kuz'ma, Y., & Grin, Y. (2002). New Ternary Phosphide La₇Pd₁₇P₁₂: Preparation and Crystal Structure. Zeitschrift für Naturforschung Section B-A Journal of Chemical Sciences, 57(12), 1409-1413.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-30C6-3

Abstract

The title compound was prepared from elements by sintering in the temperature region between 1073 and 1473 K. The monoclinic structure of La7Pd17P12 was solved and refined from X-ray single crystal data: space group C2/m, a = 24.519(1), b = 4.0859(5), c = 13.6106(8) Angstrom, beta = 112.129(3)degrees, Z = 2, R-F = 0.025 for 1065 unique of 4877 measured reflections and 112 refined parameters. Main structural, motif of the new phosphide are condensed blocks of trigonal prisms around phosphorus atoms connected to infinite chains via lanthanum atoms. The structural features of La7Pd17P12 are discussed in comparison with some representatives of a large family of structures with metal / non-metal ratio close to 2: 1.