Single Crystal Electron Spin Resonance Spectra of the 12-Tungstoferrate(III) Ion

Abstract
Electron spin resonance spectra of 12‐tungstoferrate (III) anion diluted into potassium 12‐tungstoborate were measured and analyzed.ESR spectra are attributed to the ferric ion in a tetrahedral site. Parameters determined are g =2.00±0.01, a =86 G, D =− 103 G, F =− 18 G, and E =− 16 G .