Abstract
Electron paramagnetic resonance of Mn(II) ion doped in bis (ammonium) pentafluorostibnate is reported. Local charge compensation is proposed as the reason for the doubling of the expected single site. A ±20° rotation of the MnF3−5 moeity about the crystallographic a axis has been attributed to charge compensation processes. The D tensor is found to have the values Dzz=0.0358 cm−1, Dyy=−0.028 62 cm−1, Dxx=−0.007 26 cm−1; the Mn hyperfine coupling is found to be −0.0095 cm−1. The apical flourine does not give resolved hyperfine coupling, while the four basal flourine atoms give hyperfine couplings in the range amax=0.0018 cm−1, amin=0.0015 cm−1.
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