Seven coordinate complexes of metal(II) nitrates |
| |
| Institution: | 1. Human Exercise and Training Laboratory, Central Queensland University, Bruce Highway, Rockhampton, QLD 4702, Australia;2. Clinical Biochemistry Laboratory, Central Queensland University, Bruce Highway, Rockhampton, QLD 4702, Australia;3. School of Medical and Applied Sciences, Central Queensland University, Bruce Highway, Rockhampton, QLD 4702, Australia |
| |
| Abstract: | ESR spectra at both X and Q band are reported for manganese(II) ions doped into the seven coordinate complexes M(L)3(NO3)2 (M = Co, Ni, Zn or Cd; L = pyridine or substituted pyridine). The zero field splitting parameters D and λ (= E/D) are deduced. All complexes show considerable deviation from cubic symmetry, as can be expected for a seven coordinate structure. The distinctly lower D value of Ni(Mn)(pyridine)3(NO3)2, as compared to the analogous cobalt and zinc complex, suggests a geometry tending towards an octahedral structure. The steric hindrance by the substituent reduces the D value. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
