Conversion of Electron Configuration of Iron Ion through Core Contraction of Porphyrin: Implications for Heme Distortion

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• 作者：Zaichun Zhou ; Qiuhua Liu ; Ziqiang Yan ; Ge Long ; Xi Zhang ; Chenzhong Cao ; Rongqing Jiang
• 刊名：Organic Letters
• 出版年：2013
• 出版时间：February 1, 2013
• 年：2013
• 卷：15
• 期：3
• 页码：606-609
• 全文大小：275K
• 年卷期：v.15,no.3(February 1, 2013)
• ISSN：1523-7052

文摘

It was demonstrated experimentally that nonplanar iron porphyrins can be induced to undergo a conversion in their electronic configuration to form a cross-hybrid transition by compressing the macrocyclic core size for the central metal ion. A series of monostrapped iron porphyrins were used as model systems, and their electronic properties were probed using electron spin resonance and differential spectral analyses. These results indicate that the formation of a cross-hybrid transition stage is related to the stability of the high-valence state and potent oxidizing ability of the central iron ion.