Question

Magnetic behaviour of 2nd and 3rd series transition element

Answer 1

Abstract
The magnetic data available on the magnetically dilute coordination compounds of the 2nd and 3rd transition series of elements is summarised. It is pointed out that the increase in atomic number leads to very large spin-orbit coupling constants and to the possibility of coordination numbers greater than six and these facts explain a good deal of the data. The possibility of antiferromagnetic interactions is discussed and the need for the measurement of the magnetic susceptibility down to low temperatures emphasised. The temperature variation of the susceptibility of several compounds is reported and in one case the combined importance of spin-orbit and departure from true octahedral symmetry is discussed in detail.