3 years ago

The Role of [BF4]− and [B(CN)4]− Anions in the Ionothermal Synthesis of Chalcogenidometalates

The Role of [BF4]− and [B(CN)4]− Anions in the Ionothermal Synthesis of Chalcogenidometalates
Jan A. P. Sprenger, Maik Finze, Silke Santner, Stefanie Dehnen
The nature of the ionic liquid borate anion, [BF4]− or [B(CN)4]−, is an important parameter in the ionothermal synthesis of crystalline selenidostannates using K4[SnSe4]⋅4 H2O and K2[SnCl6]. [BF4]− anions tend to form solid K[BF4], whereas the K+ cations remain available for the syntheses in [B(CN)4]−-based ionic liquids. The choice of both the anion and the reaction temperature thus influences the product spectrum, and also indirectly the optical absorption properties of the uncommon salts like (C4C1C1Im)5[Sn9Se20][BF4] or K2[Sn3Se7]. More information can be found in the Full Paper by S. Dehnen, et al. (DOI: 10.1002/chem.201705297).

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201800245

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