On the theory of the paramagnetic anisotropy of some hydrated cupric salts

摘要: Summary From the structure analysis of CuSO4. 5 aq. it is known, that complex, consisting a Cu++ion and its six neighbours, has nearly tetragonal symmetry. It likely, in K2Cu(SO4)2. 6 there are Cu++(H2O)6 clusters. In both salts unit cell contains, two, differently orientated identical groups. One can account for observed anisotropies salts, by assuming, cupric ion each group magnetically uniaxial, with Curie constants 0.56 0.40 respectively direction axis at right angles this axis. These values be explained assumption crystal field, acting on ion. The splittings 2D-state order 20,000 cm−1. Such expected from calculations model, .in which surrounded dipoles, being permanent induced dipoles H2O molecules. value θ aq discussed suggested, might due to exchange effects.