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Persistent URL http://purl.org/net/epubs/work/65582
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Record Id 65582
Title The Structure and Desorption Properties of the Ammines of the Group II Halides
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Abstract The synthesis of the magnesium halide ammines (Mg(NH3)6Cl2, Mg(NH3)6Br2 and Mg(NH3)6I2) is reported and their structures are identified by high resolution X-ray diffraction. The structures of Mg(NH3)6Br2 and Mg(NH3)6I2 are reported for the first time. The desorption properties of Mg(NH3)6Cl2, Mg(NH3)6Br2 and Mg(NH3)6I2 are examined by thermogravimetric analysis and NMR, and the trends in desorption properties as a function of composition are interpreted using a simple ionic model. It is found that the desorption properties are dependent on the lattice enthalpy of the intermediate and final phases Mg(NH3)2X2, Mg(NH3)X2 and MgX2, that the anion has limited effect on the state of Mg-N bonding and that the desorption temperature of ionic ammines may be tuned by varying the size of the anion.
Organisation ISIS , STFC
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Chem Phys 427 (2013): 38-43. doi:10.1016/j.chemphys.2013.05.006 2013
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