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Photoreduction of ferricytochrome c in the presence of potassium ferrocyanide†
Photochemical & Photobiological Sciences ( IF 2.7 ) Pub Date : 2018-09-17 00:00:00 , DOI: 10.1039/c8pp00286j Dmitry Malyshka 1, 2, 3, 4 , Reinhard Schweitzer-Stenner 1, 2, 3, 4
Photochemical & Photobiological Sciences ( IF 2.7 ) Pub Date : 2018-09-17 00:00:00 , DOI: 10.1039/c8pp00286j Dmitry Malyshka 1, 2, 3, 4 , Reinhard Schweitzer-Stenner 1, 2, 3, 4
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Ferricytochrome c has been previously shown to photoreduce in the presence of ferrocyanide anions, but the process has been poorly understood. Here, we propose a kinetic model for this phenomenon and support it with resonance Raman measurements that show a clear dependence of photoreduction on the concentration of mixture components and laser power. Our data are consistent with the photoreduction process that is driven by photoexcitation of the heme followed by an electron transfer from the excited state of the heme macrocycle to the heme iron. Concomitantly, the hole in the heme ground state is filled with an electron transferred from a ferrocyanide ion residing in the heme pocket.
中文翻译：
高铁的光还原Ç在亚铁氰化钾的存在下†
先前已经证明在亚铁氰化物阴离子的存在下铁细胞色素c会光还原，但是对该过程的了解却很少。在这里，我们为这种现象提出了一个动力学模型，并通过共振拉曼测量来支持它，该测量显示出光还原对混合物成分浓度和激光功率的明显依赖性。我们的数据与由血红素的光激发，随后电子从血红素大环的激发态转移到血红素铁驱动的光还原过程一致。伴随地，在血红素基态的孔中填充有从存在于血红素袋中的亚铁氰化物离子转移来的电子。
更新日期：2018-09-17
中文翻译：
高铁的光还原Ç在亚铁氰化钾的存在下†
先前已经证明在亚铁氰化物阴离子的存在下铁细胞色素c会光还原，但是对该过程的了解却很少。在这里，我们为这种现象提出了一个动力学模型，并通过共振拉曼测量来支持它，该测量显示出光还原对混合物成分浓度和激光功率的明显依赖性。我们的数据与由血红素的光激发，随后电子从血红素大环的激发态转移到血红素铁驱动的光还原过程一致。伴随地，在血红素基态的孔中填充有从存在于血红素袋中的亚铁氰化物离子转移来的电子。
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