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Calcium-free Solid Solutions in the System Ba7F12Cl2−xBrx (x < 1.5), a Single-component White Phosphor Host

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Abstract

We have recently prepared solid solutions of Ba∼6.3Ca∼0.7F12Cl2−xBrx with x ranging from 0 to 2. In this work, the synthesis and single crystal X-ray structure of calcium-free crystals of Ba∼6.9Na∼0.2F12Br0.6Cl1.4 (space group P63/m, a = 10.6024(10), c = 4.2034(4) Å), Ba∼6.9Na∼0.2F12Br1.4 Cl0.6 (space group P63/m, a = 10.6155(9), c = 4.2355(4) Å) and Ba∼6.9Na∼0.2Br1.32Cl0.68F12 (space group P63/m, a = 10.6218(9), c = 4.2284(4) Å) are reported.

These crystals systematically present additional electron density at the 0 0 0.25 position which is associated with the presence of small, but significant amounts of Na+ ions in the crystal.

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Acknowledgements

This work was supported by the Swiss National Science Foundation (Projects 200021-101950 and 200020-109422).

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Authors and Affiliations

  1. Département de Chimie Physique, Université de Genève, 30, quai E. Ansermet, 1211, Geneva, Switzerland

    T. Penhouet & H. Hagemann

  2. Inst. für Chemische Technologie und Analytik, TU Wien, Getreidemarkt 9/164, 1060, Vienna, Austria

    F. Kubel & A. Rief

Authors
  1. T. Penhouet
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  2. H. Hagemann
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  3. F. Kubel
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  4. A. Rief
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Corresponding author

Correspondence to H. Hagemann.

Additional information

Dedicated to the memory of Professor Erwin Parthé, deceased August 28 2006.

The synthesis and single crystal X-ray structures of Ba7F12Cl2−xBrx (x ≤ 1.4) including small amounts of Na in the 0 0 0.25 position are reported.

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Penhouet, T., Hagemann, H., Kubel, F. et al. Calcium-free Solid Solutions in the System Ba7F12Cl2−xBrx (x < 1.5), a Single-component White Phosphor Host. J Chem Crystallogr 37, 469–472 (2007). https://doi.org/10.1007/s10870-007-9195-8

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  • DOI: https://doi.org/10.1007/s10870-007-9195-8

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