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Preparation and Crystal Structure Determination of the New Intermetallic Compound RbGa 3
Author(s) -
Ling R. G.,
Belin C.
Publication year - 1981
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19814800923
Subject(s) - tetragonal crystal system , crystallography , diffractometer , stacking , crystal structure , scandium , dodecahedron , intermetallic , gallium , hexagonal crystal system , diffraction , materials science , chemistry , physics , optics , inorganic chemistry , organic chemistry , alloy , metallurgy , composite material
The compound has tetragonal symmetry, space group I 4 m2 with: a=b=6.315(2) and c = 15.000(2) Å and contains 6 formula units. Diffraction data with 0 < 2θ < 50° (MoKα radiation) were collected on a Nonius CAD‐4 automatic diffractometer within the octant hkl. The structure was solved by Patterson synthesis and refined by full‐matrix least squares to a final R(F) of 4.9% for 159 independent reflections with I > 3σ(I). The structure consists of a stacking of gallium triangular‐faced dodecahedra linked to each others through direct and bifurcated GaGa bonds in a non‐compact netting leaving room for a sublattice of rubidium atoms with shortened RbRb distances.