In:
Acta Crystallographica Section C Crystal Structure Communications, International Union of Crystallography (IUCr), Vol. 69, No. 11 ( 2013-11-15), p. 1292-1300
Abstract:
The previously reported structures of the hydrates of simple inorganic salts that crystallize at room temperature are generally well determined. This is not true for water-rich hydrates, which crystallize at temperatures below 273 K. In this series, investigations of the crystal structures of water-rich hydrates crystallized from aqueous solutions at low temperatures are presented. Reported herein are the structures of a set of magnesium salts. Crystals of MgCl 2 ·8H 2 O (magnesium dichloride octahydrate), MgCl 2 ·12H 2 O (magnesium dichloride dodecahydrate), MgBr 2 ·6H 2 O (magnesium dibromide hexahydrate), MgBr 2 ·9H 2 O (magnesium dibromide nonahydrate), MgI 2 ·8H 2 O (magnesium diiodide octahydrate) and MgI 2 ·9H 2 O (magnesium diiodide nonahydrate) were grown from their aqueous solutions at temperatures below 298 K according to the solid–liquid phase diagrams. All structures are built up from Mg(H 2 O) 6 octahedra. Dimensions and angles in the hexaaqua cation complexes are very similar and variation is not systematic. The anions are incorporated into a specific network of O—H... X hydrogen bonds.
Type of Medium:
Online Resource
ISSN:
0108-2701
DOI:
10.1107/S0108270113028138
DOI:
10.1107/S0108270113028138/qs3030sup1.cif
DOI:
10.1107/S0108270113028138/qs3030MgCl2_12H2Osup2.hkl
DOI:
10.1107/S0108270113028138/qs3030MgBr2_9H2Osup3.hkl
DOI:
10.1107/S0108270113028138/qs3030MgI2_9H2Osup4.hkl
DOI:
10.1107/S0108270113028138/qs3030MgCl2_8H2Osup5.hkl
DOI:
10.1107/S0108270113028138/qs3030MgI2_8H2Osup6.hkl
DOI:
10.1107/S0108270113028138/qs3030MgBr2_6H2Osup7.hkl
DOI:
10.1107/S0108270113028138/qs3030MgCl2_12H2Osup8.cml
DOI:
10.1107/S0108270113028138/qs3030MgBr2_9H2Osup9.cml
DOI:
10.1107/S0108270113028138/qs3030MgI2_9H2Osup10.cml
DOI:
10.1107/S0108270113028138/qs3030MgCl2_8H2Osup11.cml
DOI:
10.1107/S0108270113028138/qs3030MgI2_8H2Osup12.cml
DOI:
10.1107/S0108270113028138/qs3030MgBr2_6H2Osup13.cml
DOI:
10.1107/S0108270113028138/qs3030sup14.pdf
Language:
Unknown
Publisher:
International Union of Crystallography (IUCr)
Publication Date:
2013
detail.hit.zdb_id:
2025703-X
SSG:
13
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