Electron Spin Resonance Study of Mn(CN)_5NO^(2-) in a Single Crystal

McNEIL, RAYNOR and SYMONS recently reported the e.s.r. spectra of Mn(CN)_5NO^(2-) in liquid solutions at room temperature and in frozen glasses at 77ºK. In their experiments they did not detect any hyperfine splittings due to ^(14)N of the NO group and estimated that both A_⊥(^(14)N) and A_(II)(^(14)N) are smaller than 1.9 gauss.