Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform

Not so elusive: [FeII(CN)5(HNO)]3- has been characterized spectroscopically after the two-electron reduction of nitroprusside (see scheme). The complex is stable at pH 6, slowly decomposing to [Fe(CN)6]4- and N2O. It is deprotonated at increasing pH value with oxidation of bound NO- to [Fe II(CN)5(N...

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Autores principales: Montenegro, Andrea Constanza, Slep, Leonardo Daniel, Roncaroli, Federico, Murgida, Daniel Horacio, Bari, Sara Elizabeth, Olabe Iparraguirre, Jose Antonio
Publicado: 2009
Materias:
Cyanides
Iron
Nitrogen oxides
Nitroxyl complex
Redox chemistry
Aqueous solutions
Heme iron
Pentacyanoferrate
pH value
Redox state
Redox-active
Two-electron reduction
Iron oxides
Nitric oxide
Porphyrins
Iron compounds
ferrous ion
nitric oxide
nitroprusside sodium
pentacyanoferrate (II)
chemistry
infrared spectroscopy
nuclear magnetic resonance spectroscopy
oxidation reduction reaction
Ferrous Compounds
Magnetic Resonance Spectroscopy
Nitric Oxide
Nitroprusside
Oxidation-Reduction
Spectroscopy, Fourier Transform Infrared
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14337851_v48_n23_p4213_Montenegro
http://hdl.handle.net/20.500.12110/paper_14337851_v48_n23_p4213_Montenegro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_14337851_v48_n23_p4213_Montenegro
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spelling paper:paper_14337851_v48_n23_p4213_Montenegro2023-06-08T16:14:20Z Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform Montenegro, Andrea Constanza Slep, Leonardo Daniel Roncaroli, Federico Murgida, Daniel Horacio Bari, Sara Elizabeth Olabe Iparraguirre, Jose Antonio Cyanides Iron Nitrogen oxides Nitroxyl complex Redox chemistry Aqueous solutions Heme iron Nitroxyl complex Pentacyanoferrate pH value Redox chemistry Redox state Redox-active Two-electron reduction Cyanides Iron oxides Nitric oxide Nitrogen oxides Porphyrins Iron compounds ferrous ion nitric oxide nitroprusside sodium pentacyanoferrate (II) chemistry infrared spectroscopy nuclear magnetic resonance spectroscopy oxidation reduction reaction Ferrous Compounds Magnetic Resonance Spectroscopy Nitric Oxide Nitroprusside Oxidation-Reduction Spectroscopy, Fourier Transform Infrared Not so elusive: [FeII(CN)5(HNO)]3- has been characterized spectroscopically after the two-electron reduction of nitroprusside (see scheme). The complex is stable at pH 6, slowly decomposing to [Fe(CN)6]4- and N2O. It is deprotonated at increasing pH value with oxidation of bound NO- to [Fe II(CN)5(NO)]3-. [FeII(CN) 5 (HNO)]3- is the first non-heme iron-nitroxyl complex prepared in aqueous solution that is reversibly redox-active under biologically relevant conditions. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA. Fil:Montenegro, A.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Slep, L.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Roncaroli, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Murgida, D.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bari, S.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Olabe, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14337851_v48_n23_p4213_Montenegro http://hdl.handle.net/20.500.12110/paper_14337851_v48_n23_p4213_Montenegro
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cyanides
Iron
Nitrogen oxides
Nitroxyl complex
Redox chemistry
Aqueous solutions
Heme iron
Nitroxyl complex
Pentacyanoferrate
pH value
Redox chemistry
Redox state
Redox-active
Two-electron reduction
Cyanides
Iron oxides
Nitric oxide
Nitrogen oxides
Porphyrins
Iron compounds
ferrous ion
nitric oxide
nitroprusside sodium
pentacyanoferrate (II)
chemistry
infrared spectroscopy
nuclear magnetic resonance spectroscopy
oxidation reduction reaction
Ferrous Compounds
Magnetic Resonance Spectroscopy
Nitric Oxide
Nitroprusside
Oxidation-Reduction
Spectroscopy, Fourier Transform Infrared
spellingShingle Cyanides
Iron
Nitrogen oxides
Nitroxyl complex
Redox chemistry
Aqueous solutions
Heme iron
Nitroxyl complex
Pentacyanoferrate
pH value
Redox chemistry
Redox state
Redox-active
Two-electron reduction
Cyanides
Iron oxides
Nitric oxide
Nitrogen oxides
Porphyrins
Iron compounds
ferrous ion
nitric oxide
nitroprusside sodium
pentacyanoferrate (II)
chemistry
infrared spectroscopy
nuclear magnetic resonance spectroscopy
oxidation reduction reaction
Ferrous Compounds
Magnetic Resonance Spectroscopy
Nitric Oxide
Nitroprusside
Oxidation-Reduction
Spectroscopy, Fourier Transform Infrared
Montenegro, Andrea Constanza
Slep, Leonardo Daniel
Roncaroli, Federico
Murgida, Daniel Horacio
Bari, Sara Elizabeth
Olabe Iparraguirre, Jose Antonio
Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform
topic_facet Cyanides
Iron
Nitrogen oxides
Nitroxyl complex
Redox chemistry
Aqueous solutions
Heme iron
Nitroxyl complex
Pentacyanoferrate
pH value
Redox chemistry
Redox state
Redox-active
Two-electron reduction
Cyanides
Iron oxides
Nitric oxide
Nitrogen oxides
Porphyrins
Iron compounds
ferrous ion
nitric oxide
nitroprusside sodium
pentacyanoferrate (II)
chemistry
infrared spectroscopy
nuclear magnetic resonance spectroscopy
oxidation reduction reaction
Ferrous Compounds
Magnetic Resonance Spectroscopy
Nitric Oxide
Nitroprusside
Oxidation-Reduction
Spectroscopy, Fourier Transform Infrared
description Not so elusive: [FeII(CN)5(HNO)]3- has been characterized spectroscopically after the two-electron reduction of nitroprusside (see scheme). The complex is stable at pH 6, slowly decomposing to [Fe(CN)6]4- and N2O. It is deprotonated at increasing pH value with oxidation of bound NO- to [Fe II(CN)5(NO)]3-. [FeII(CN) 5 (HNO)]3- is the first non-heme iron-nitroxyl complex prepared in aqueous solution that is reversibly redox-active under biologically relevant conditions. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
author Montenegro, Andrea Constanza
Slep, Leonardo Daniel
Roncaroli, Federico
Murgida, Daniel Horacio
Bari, Sara Elizabeth
Olabe Iparraguirre, Jose Antonio
author_facet Montenegro, Andrea Constanza
Slep, Leonardo Daniel
Roncaroli, Federico
Murgida, Daniel Horacio
Bari, Sara Elizabeth
Olabe Iparraguirre, Jose Antonio
author_sort Montenegro, Andrea Constanza
title Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform
title_short Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform
title_full Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform
title_fullStr Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform
title_full_unstemmed Three redox states of nitrosyl: NO+, NO•, and NO-/HNO interconvert reversibly on the same pentacyanoferrate(II) platform
title_sort three redox states of nitrosyl: no+, no•, and no-/hno interconvert reversibly on the same pentacyanoferrate(ii) platform
publishDate 2009
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14337851_v48_n23_p4213_Montenegro
http://hdl.handle.net/20.500.12110/paper_14337851_v48_n23_p4213_Montenegro
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