Decreased electron transfer rates of manganese porphyrins with conformational distortion of the macrocycle

Shunichi Fukuzumi; Ikuo Nakanishi; Jean Michel Barbe; Roger Guilard; Eric Van Caemelbecke; Ning Guo; Karl M. Kadish

doi:10.1002/(SICI)1521-3773(19990401)38:7<964::AID-ANIE964>3.0.CO;2-O

Decreased electron transfer rates of manganese porphyrins with conformational distortion of the macrocycle

Shunichi Fukuzumi, Ikuo Nakanishi, Jean Michel Barbe, Roger Guilard, Eric Van Caemelbecke, Ning Guo, Karl M. Kadish

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Slow electron transfer to manganese(III) porphyrins results when the macrocycle deviates from planarity. This was demonstrated by measuring the kinetics of homogeneous electron transfer from a series of semiquinone radical anions to synthetic manganese porphyrins (shown schematically; R¹ =H, Cl, F; R²=H, F). Three of the four porphyrins studied have nonplanar macrocycles. These results could have implications for the role of manganese in biological electron transfer processes.

Original language	English
Pages (from-to)	964-966
Number of pages	3
Journal	Angewandte Chemie - International Edition
Volume	38
Issue number	7
DOIs	https://doi.org/10.1002/(SICI)1521-3773(19990401)38:7<964::AID-ANIE964>3.0.CO;2-O
State	Published - 1 Apr 1999

Keywords

Conformation analysis electron transfer kinetics
Manganese
Porphyrinoids

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10.1002/(SICI)1521-3773(19990401)38:7<964::AID-ANIE964>3.0.CO;2-O

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title = "Decreased electron transfer rates of manganese porphyrins with conformational distortion of the macrocycle",

abstract = "Slow electron transfer to manganese(III) porphyrins results when the macrocycle deviates from planarity. This was demonstrated by measuring the kinetics of homogeneous electron transfer from a series of semiquinone radical anions to synthetic manganese porphyrins (shown schematically; R1 =H, Cl, F; R2=H, F). Three of the four porphyrins studied have nonplanar macrocycles. These results could have implications for the role of manganese in biological electron transfer processes.",

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T1 - Decreased electron transfer rates of manganese porphyrins with conformational distortion of the macrocycle

AU - Fukuzumi, Shunichi

AU - Nakanishi, Ikuo

AU - Barbe, Jean Michel

AU - Guilard, Roger

AU - Van Caemelbecke, Eric

AU - Guo, Ning

AU - Kadish, Karl M.

PY - 1999/4/1

Y1 - 1999/4/1

N2 - Slow electron transfer to manganese(III) porphyrins results when the macrocycle deviates from planarity. This was demonstrated by measuring the kinetics of homogeneous electron transfer from a series of semiquinone radical anions to synthetic manganese porphyrins (shown schematically; R1 =H, Cl, F; R2=H, F). Three of the four porphyrins studied have nonplanar macrocycles. These results could have implications for the role of manganese in biological electron transfer processes.

AB - Slow electron transfer to manganese(III) porphyrins results when the macrocycle deviates from planarity. This was demonstrated by measuring the kinetics of homogeneous electron transfer from a series of semiquinone radical anions to synthetic manganese porphyrins (shown schematically; R1 =H, Cl, F; R2=H, F). Three of the four porphyrins studied have nonplanar macrocycles. These results could have implications for the role of manganese in biological electron transfer processes.

KW - Conformation analysis electron transfer kinetics

KW - Manganese

KW - Porphyrinoids

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Decreased electron transfer rates of manganese porphyrins with conformational distortion of the macrocycle

Abstract

Keywords

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