【摘要】 合成了一系列不同长度柔韧烷氧链相连的单核铁双卟啉配合物，观察了轴向配体咪唑加入其氯仿溶液前后的可见光谱的变化。结果表明，在波长６８０ｎｍ处，吸收峰强度与开放式和闭合式构象的平衡有关。随着烷氧链长度的增加，单核铁双卟啉配合物在溶液中的构象平衡由开放式向闭合式移动。更多还原

【Abstract】 A series of iron(Ⅲ) metal porphyrin dimers linked with flexible alkoxyl chain at para position of two phenyl rings have been synthesized and characterized.An equilibrium of two conformations of porphyrin dimers(open and closed)has been studied by visible spectra.The intensity of absorption band 680 nm relates to equilibrium of two conformations.With the increase of the length of the alkoxyl chain,the closed conformation forms more easily.With the addition of axial ligand,the ferric ion of the dimers tends to bind with imidazole,and the intensity of the band 680 nm gradually decreases and disappears.更多还原