Figure 2
The coordination polyhedra of Mg, Ga, and Au in the crystal structure of MgAuGa. Au atoms are orange, Ga blue and Mg green. (a) The pentagonal Au-capped Au4Ga6 prism. (b) The coordination polyhedron of Ga, consisting of interpenetrating Mg6 trigonal prisms and an Au4 tetrahedron. (c) The [Au1Ga6Mg3] coordination polyhedron of Au, consisting of equatorially capped Ga6 trigonal prisms. (d) The [Au2Mg6Ga3] coordination polyhedron of Au, also consisting of equatorially capped Mg6 trigonal prisms. |