Reference

Further examples of a ligand field calculation for the sixfold coordinated complex hexaaquairon(2+)

Further examples of a ligand field calculation for the sixfold coordinated complex hexaaquairon(2+). Spiering, H.; Dezsi, I.; Nagy, D. L. (Phys. Inst., Univ. Erlangen-Nuernberg, Erlangen, Ger.). J. Phys. (Paris), Colloq., (6), 571-4 (English) 1976. CODEN: JPQCAK. DOCUMENT TYPE: Journal CA Section: 73 (Spectra by Absorption, Emission, Reflection, or Magnetic Resonance, and Other Optical Properties) Moessbauer spectra of powder samples of the paramagnetic Fe2+ ion in Fe(BF4)2.6 H2O and dild. in Co(BF4)2. 6 H2O and Co(ClO4)2.6 H2O wre measured at 4.2 K in longitudinal external magnetic fields up to 50 kG. The ligand field symmetry at the Fe-site is mainly D3d. All spectra can be well reproduced within the ligand field theory restricted to the 5T2g subspace of the 5D high spin state and the effective symmetry at the iron site being C2h, the subgroup of D3d. To overcome the large no. 15438-31-0 and 15684-35-2 which are cas registry numbers of chemicals are mentioned. of parameters involved the covalency, the spin-orbit-coupling and the hyperfine consts. are taken to be the same for all compds. owing to the matter of fact that the binding to the iron ion and therefore the mol. orbitals are essentially detd. by the Fe(H2O)62+ complex. The similar C2h-distortions in these compds. and in FeSiF6 . 6 H2O and Fe(ClO4)2 . 6H2O are a hint at the Fe(H2O)62+ complex itself giving rise to the lowering of the D3d symmetry rather than the environment in the crystal. .