Syntheses and Crystal Structures of the Novel Salts Sr[MoVI2O2F9]2·HF, Ba[MoVI2O2F9]2·2HF, and of Ba[MoVOF5]
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Sr[Mo2O2F9]2·HF and Ba[Mo2O2F9]2·2HF, which contain HF molecules of crystallization are synthesized and characterized. An explanation for the conditions leading to the formation of mono- or dinuclear oxyfluoridomolybdate anions is given. The Mo(V) compound Ba[MoOF5] is synthesized directly for the first time by reacting BaCl2 with MoCl5 under hydrofluorothermal conditions and its crystal structure model improved.
The reactions of SrF2 and BaF2 with MoOF4 in aHF at 80 °C are shown to yield the Mo(VI) compounds Sr[Mo2O2F9]2·HF and Ba[Mo2O2F9]2·2HF. The stoichiometric ratio of metal fluoride and MoOF4 determines the formation of mono- or dinuclear oxyfluoridomolybdate anions. The Mo(V) compound Ba[MoOF5] is synthesized directly for the first time to check its previously reported crystal structure by reacting BaCl2 with MoCl5 under hydrofluorothermal conditions. All compounds are characterized by single crystal and powder X-ray diffraction and quantum-chemical calculations on the solids allow the assignment of the infrared and Raman bands.
![Syntheses and Crystal Structures of the Novel Salts Sr[MoVI2O2F9]2·HF, Ba[MoVI2O2F9]2·2HF, and of Ba[MoVOF5]](/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fplaceholder.5ca6fc18.png&w=256&q=75)
![Syntheses and Crystal Structures of the Novel Salts Sr[MoVI2O2F9]2·HF, Ba[MoVI2O2F9]2·2HF, and of Ba[MoVOF5]](/_next/image?url=https%3A%2F%2Fcdn.gdch.de%2Fprod%2Fnadc20264158444_fig_0001_a_36fd5c002c.png&w=256&q=75)
![Syntheses and Crystal Structures of the Novel Salts Sr[MoVI2O2F9]2·HF, Ba[MoVI2O2F9]2·2HF, and of Ba[MoVOF5]](/_next/image?url=https%3A%2F%2Fcdn.gdch.de%2Fprod%2Fnadc20264158499_fig_0001_a_8463b1bf14.png&w=256&q=75)
![Syntheses and Crystal Structures of the Novel Salts Sr[MoVI2O2F9]2·HF, Ba[MoVI2O2F9]2·2HF, and of Ba[MoVOF5]](/_next/image?url=https%3A%2F%2Fcdn.gdch.de%2Fprod%2Fnadc20264158504_gra_0001_a_6653df00f8.png&w=256&q=75)
