STRUCTURE AND THERMAL PROPERTIES OF [Rh(NH3)5Cl](WO4)x(MoO4)1-x (x = 0, 0.5, 1)
Keywords: molybdenum, rhodium, tungsten, complex salt, single crystal X-ray diffraction, powder X-ray diffraction, thermal analysis
Pages: 800-804
Abstract
The isostructurality of [Rh(NH3)5Cl](WO4)x(MoO4)1-x (x = 0, 0.5, 1) complex salts is shown, and their thermal properties are compared. In a hydrogen atmosphere, transformations begin at Т ~ 200°C. According to the powder XRD data, the phase composition of the end products is markedly different. For the Rh-Mo system, the dependence (V/Z) of the atomic volume on the composition is presented. The thermal decomposition product [Rh(NH3)5Cl](MoO4) (Тfin = 800°C) is shown to be the disordered Mo0.5Rh0.5 solid solution (а = 2.757(2) Å, с = 4.428(4) Å, P63/mmc space group).
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