Electron spin resonance spectra of manganese(II) ions in the double-stranded chain polymers CdLX2(L = pyridine or methylpyridine; X = Cl or Br)

Abstract

E.s.r. spectra at X and Q band are reported for manganese(II) ions doped into CdLX₂(L = pyridine or 3- or 4-methylpyridine; X = Cl or Br). The zero-field splitting parameters D and λ(=E/D) are obtained. For the chlorides D is in the range –0.0576 to –0.0631 cm^–1, with λ= 0.04 ± 0.01, while for the bromides |D|=ca. 0.185 cm^–1, with λ= 0.07 ± 0.01. These figures support the proposed double-stranded polymeric structure, which may readily be identified from the form of the spectrum.