Abstract

AbstractYellow single crystals of RbAu(SeO4)2 were obtained upon evaporation of a solution prepared from the reaction of elemental gold and Rb2CO3 with conc. selenic acid. In the crystal structure (monoclinic, C2/m, Z = 2, a = 1078.7(4), b = 522.7(1), c = 739.3(2) pm, β = 116.45(2)°) Au3+ is in square planar coordination of oxygen atoms which belong to four SeO42‐ ions. According to [Au(SeO4)4/2]‐ anionic chains are formed which are connected by the Rb+ ions. The latter are surrounded by two chelating and six monodentate selenate groups leading to a CN of 10.

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