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. La-distorsion-de, estimation du paramètre (formule II.1) [14] Par rapport à l'octaèdre parfait ( = 0°), la valeur obtenue ( = 92°) indique une forte distorsion. Cette valeur suggère également que l'ion Fe(II) de la forme hydratée se trouve dans l'état BS. La valeur des complexes [Fe(bpp) 2 ]X 2 ·solv dans l'état BS est en général, p.90

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