In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2016, No. 12 ( 2016-04), p. 1875-1885
Kurzfassung:
The previously unknown nickel chloride hydroxide phases Ni 3 Cl 2+ x (OH) 4– x · 2H 2 O ( x = 0.26, 0.48, 0.82) have been synthesized in concentrated aqueous NiCl 2 solutions and investigated in detail. Crystal structure determination from X‐ray powder diffraction data revealed triple chains of distorted, edge‐linked NiO 6 and NiO 3 (O/Cl) 3 octahedra as the main building blocks. The chains exhibit a layer‐like configuration and therefore great structural similarity to nickel‐layered hydroxy halides (Cl, Br, I) and β‐Ni(OH) 2 . Increasing chloride content in Ni 3 Cl 2+ x (OH) 4– x · 2H 2 O leads to a reduction of the space group symmetry from C 2/ m (12) for x = 0.26 and 0.48 to P $\bar {1}$ (2) for x = 0.82 and to distinct shifts in their thermal, spectral, and magnetic properties. Each solid exhibits a maximum magnetic susceptibility in the range 5.9–9.7 K, which indicates antiferromagnetic ordering. Positive Curie–Weiss temperatures, θ , were found, which points to predominantly ferromagnetic spin‐exchange interactions. In addition, broad maxima of the magnetic susceptibility evidence a low‐dimensional magnetic character as the most prominent feature of the magnetic properties of the investigated phases.
Materialart:
Online-Ressource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2016.12
DOI:
10.1002/ejic.201600074
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2016
ZDB Id:
1475009-0
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