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Structure refinement of Mg2Cu and a comparison of the Mg2Cu, Mg2Ni and Al2Cu structure types

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Published in Acta Crystallographica. B, Structural Science. 1993, vol. 49, no. 2, p. 201-203
Abstract Dimagnesium copper, Mg<sub>2</sub>Cu, M<sub>r</sub> = 112.170, orthorhombic, Fddd (70), a = 5.275 (1), b = 9.044 (1), c = 18.328 (2) ./k, V = 874.3 (2) A<sub>3</sub>, Z: 16, D<sub>x</sub> = 3.41 g cm<sup>-3</sup>, Mo Ka (A = 0.71073 A), /.i, = 101.145 cm<sup>-1</sup>, F(000) -- 848, T = 293 K, R -- 0.034 (wR -- 0.031) for 17 refined parameters and 310 observed X-ray single-crystal reflections [F<sub>o</sub> > 3~r(F<sub>o</sub>)]. The refined parameters are consistent with the nonrefined parameters reported by Schubert & Anderko [Z. Metallkd. (1951), 42, 321-325]. The Mg2Cu structure type can be derived by a stacking of slabs that build up the A1<sub>2</sub>Cu and Mg<sub>2</sub>Ni structure types.
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GINGL, Franz Joséf, SELVAM, Parasuraman, YVON, Klaus. Structure refinement of Mg2Cu and a comparison of the Mg2Cu, Mg2Ni and Al2Cu structure types. In: Acta Crystallographica. B, Structural Science, 1993, vol. 49, n° 2, p. 201-203. https://archive-ouverte.unige.ch/unige:82302

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