Fine Structures of Iron Ions in Hemoproteins

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概要

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• Energy levels and eigenfunctions of various SΓ states for d^5 and d^6 in a ligand field of the tetragonal symmetry are calculated. Then the spin-orbit interaction is taken account of and the fine structures of ground SΓ states, mainly those of high spin states, are investigated in order to give the basis to analyze magnetic measurements on hemoproteins. For Fe^<3+>, the spin Hamiltonian DS_Z^2 is derived from perturbation calculation and the values of ligand field parameters X, Y and Z are discussed from the experimental value of D for ferric myoglobin. Biquardratic terms of spin Hamiltonian are also derived. For Fe^<2+>, temperature dependences of the effective magnetic moment are discussed in detail for various cases of ligand field strength. In ferrous hemoglobin, the lowest quintet state seems to be separated from other quintet states by energies much larger than the spin-orbit interaction and the ligand field seems to be considerably different from that in the ferric form.

• 社団法人日本物理学会の論文
• 1968-04-05

著者

• Otsuka Jinya

  Department Of Physics Faculty Of Engineering Science Osaka University

• Otsuka Jinya

  Department Of Applied Biological Science Science University Of Tokyo

関連論文

• Heitler-London Calculation on the Bonding of Oxygen to Hemoglobin. : III. Singlet States in the Case of O-O Axis Inclined to Heme Plane
• Heitler-London Calculation on the Bonding of Oxygen to Hemoglobin. : II. Explanation of the Diamagnetism of Oxyhemoglobin for the Parallel Arrangement of O_2 to the Heme
• Heitler-London Calculation on the Bonding of Oxygen to Hemoglobin. : I. Singlet States in the Case of O-O Axis Parallel to Heme Plane
• Electrostatic Interaction of d^n Systems in Tetragonal Fields
• Asymptotic Property of Probability Distribution in the Relaxation from an Unstable Point : Path Integral Approach
• Fine Structures of Iron Ions in Hemoproteins

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