Synthesis and Structure of Ba12F19Cl5 |
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Authors: | Frank Kubel Hans Hagemann Hans Bill |
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Abstract: | A new member belonging to the binary phase diagram of BaF2 and BaCl2 was synthesized. The single domain crystals of Ba12F19Cl5 can be prepared from a nonstoichiometric flux with molar ratio of 1 : 1 between BaFCl and BaF2. The compound crystallizes at room temperature in the non-centrosymmetric hexagonal space group P6 2m with a = b = 1408.48(14) and c = 427.33(5) pm. Three different barium environements with coordination number of nine are found. The barium fluorine distances vary between 250.59(6) – a short distance compared to other Ba? F distances – and 302.7(1) pm and barium chlorine distances between 331.55(3) and 336.19(15) pm. This compound is further characterized using Raman spectroscopy. |
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Keywords: | Barium halides X-ray crystallography optical studies Raman spectroscopy |
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