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Persistent URL
http://purl.org/net/epubs/work/65582
Record Status
Checked
Record Id
65582
Title
The Structure and Desorption Properties of the Ammines of the Group II Halides
Contributors
MO Jones (STFC Rutherford Appleton Lab.)
,
DM Royse (Inorganic Chemistry Laboratory)
,
PP Edwards (Inorganic Chemistry Laboratory)
,
WI David (STFC Rutherford Appleton Lab.)
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.
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,
STFC
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Language
English (EN)
Type
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Year
Journal Article
Chem Phys
427 (2013): 38-43.
doi:10.1016/j.chemphys.2013.05.006
2013
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