Paramagnetic Resonance Spectrum of ${Mn}^{2 +}$ in ZnSi $F_{6}$ : 6 $H_{2}$ O, $Δ m = \pm 1$ Transition

In the spectrum of

{Mn}^{2 +}

in ZnSi

F_{6}

H_{2}

O a number of weaker lines are observed at intermediate angles of the magnetic field

H

with respect to the crystal axis, in addition to the 30 allowed transitions

Δ M = \pm 1

Δ m = 0

. These lines have been measured and assigned to

Δ M = \pm 1

Δ m \pm 1

transitions. The relatively strong intensity is explained and the intensity of the lines is shown to be proportional to

{(\frac{D}{A})}^{2} {cos}^{2} θ {sin}^{2} θ

. These forbidden transitions can be utilized for dynamic polarization of manganese nuclei.

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Paramagnetic Resonance Spectrum of Mn2+ in ZnSiF6: 6H2O, Δm=±1 Transition