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Synthese, Kristallstruktur und Eigenschaften von Vanadium(II)‐tetrachloroaluminat
Author(s) -
Keßler Ulrich,
Müller Rainhard
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200700103
Subject(s) - vanadium , crystallography , monoclinic crystal system , octahedron , crystal structure , chemistry , paramagnetism , magnetic susceptibility , materials science , inorganic chemistry , condensed matter physics , physics
Synthesis, Crystal Structure, and Properties of Vanadium(II) Tetrachloroaluminate The reaction of vanadium dichloride and aluminium trichloride yields vanadium(II) tetrachloroaluminate. Amber cuboid crystals can be obtained by slow cooling of the melt. V(AlCl 4 ) 2 crystallizes in the monoclinic space group I 2/ c ( a = 1284.6(3), b = 776.3(2), c = 1163.5(2) pm, β = 92.376(10)°) and is therefore isotypic to Co(AlCl 4 ) 2 . The structure contains chains build of VCl 6 octahedra and AlCl 4 tetrahedra sharing corners and edges with each other. The temperature dependence of the magnetic susceptibility follows Curie‐Weiss behaviour ( μ = 3.88(2) μ B , Θ = −9(1) K) complying with the spin‐only paramagnetism expected of d 3 ions.