Magnetic spin only

A related technique is based on the same principles, only the trap population is measured by means of esr spectrometry (see Magnetic spin resonance) (50). 

As in the case of Cr , oxo-bridged species with magnetic moments reduced below the spin-only value (5.9 BM in the case of high-spin Fe ) are known. [Fe(salen)]20, for instance, has a moment of 1.9 BM at 298 K which falls to 0.6 BM at 80 K and the interaction between the electron spins on the 2 metal... 

The coupling of the spins of the electrons in an atom is accounted for by adding their magnetic spin quantum numbers. Since they add up to zero for paired electrons, it is sufficient to consider only the unpaired electrons. The spins of n unpaired electrons add up according to Hund s rule to a total spin quantum number S = n. The magnetic moment of these n electrons, however, is not the scalar sum of the single magnetic moments. The... 

Two kinds of environmental interactions are commonly important in the ESR spectrum of a free radical (i) To the extent that the unpaired electron has residual, or unquenched, orbital angular momentum, the total magnetic moment is different from the spin-only moment (either larger or smaller,... 

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