ISSN:
1572-901X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary Ni(acac)2 · (H2O)2 (1 mol) and alkali metal fluorides (4 mols), MF (M=NH4, Na or K), react with an excess of 40% HF on a steam-bath. The product upon treatment with water gives light green crystalline alkali metal trifluoronickelate(II) monohydrate, MNiF3 · H2O in a high yield. Chemical analyses, pyrolysis at 120 °C, i.r. spectroscopic, and cryomagnetic (300–80 K) data have been used to characterise, and establish the identity of the compounds. While NH4NiF3 · H2O behaves as a normal octahedral nickel(II) compound, NaNiF3 · H2O is ferromagnetic with Curie point 145 K, KNiF3 · H2O behaves antiferromagnetically; its Neel point is 230 K.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01036389
Permalink