Charge-Transfer Molecular Compounds in Biological Systems

概要

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In order to investigate the feature of the charge-transfer molecular compound formed in biological environment, we develop a simple theory on the charge-transfer molecular compound in a local field; the polarization or the dipole moment, the binding energy and the maximum wave length and the oscillator strength of the spectrum are estimated as functions of the strength of the local field. In the biological system the local field consists of the Coulombic field due to free charges and permanent dipoles in the structural biopolymers and the reaction field due to the polarization induced in the surrounding medium by the dipole moment of the compound. By the additional effect of these two sorts of local fields the compound in biological system can be polarized strongly. Especially, an interesting phenomenon can be expected where the polarization and the absorption maximum change discontinuously for the variation of te Coulombic field or the dielectric constant of the medium. Such a strongly polarized state is considered as the first important stage of the biochemical reaction and the abrupt polarization initiated by a small change of the Coulombic field or of the dielectric constant of the surroundings seems to suggest a control mechanism in the biological functions.
理論物理学刊行会の論文
1967-07-31