Formation of an observable intermediate during the reduction of [Co (III)(NH3)5CN]2+ by ̇CR1R2(OH) radicals

Ronit Herscu-Kluska; Haim Cohen; Dan Meyerstein

doi:10.1016/j.ica.2005.03.030

Formation of an observable intermediate during the reduction of [Co ^(III)(NH₃)₅CN]²⁺ by ^̇CR¹R²(OH) radicals

Ronit Herscu-Kluska, Haim Cohen, Dan Meyerstein

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

Abstract

^̇CR¹R²OH, Rⁱ = CH ₃ or H, react with the complex [Co^III(NH₃) ₅CN]²⁺ to form an observable intermediate probably via bonding to the nitrogen of the cyanide. This intermediate isomerizes to form a second intermediate. The second intermediate decomposes into Co ²⁺(aq), 5NH₄⁺, CN^- and R ¹R²CO. The plausible structures of the intermediates are discussed. The radicals ^̇CH³, ^̇CH ₂CHO, CH(OH)CO2-, CH2C(CH3)2OH,CO2- and CH3O2 are considerably less reactive towards this complex, the formation of intermediates in their presence is not observed.

Original language	English
Pages (from-to)	2821-2826
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	358
Issue number	9
DOIs	https://doi.org/10.1016/j.ica.2005.03.030
State	Published - 1 Jun 2005
Externally published	Yes

Bibliographical note

Funding Information:
This study was supported in part by a grant from the Israel Atomic Energy Committee. D.M. expresses his thanks to Mrs. Irene Evens for her continuous interest and support.

Keywords

Alkyl radicals
Cobalt complex
Pulse radiolysis

Access to Document

10.1016/j.ica.2005.03.030

Cite this

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title = "Formation of an observable intermediate during the reduction of [Co (III)(NH3)5CN]2+ by{\. }CR1R2(OH) radicals",

abstract = "̇CR1R2OH, Ri = CH 3 or H, react with the complex [CoIII(NH3) 5CN]2+ to form an observable intermediate probably via bonding to the nitrogen of the cyanide. This intermediate isomerizes to form a second intermediate. The second intermediate decomposes into Co 2+(aq), 5NH4+, CN- and R 1R2CO. The plausible structures of the intermediates are discussed. The radicals{\. }CH3,{\. }CH 2CHO, CH(OH)CO2-, CH2C(CH3)2OH,CO2- and CH3O2 are considerably less reactive towards this complex, the formation of intermediates in their presence is not observed.",

keywords = "Alkyl radicals, Cobalt complex, Pulse radiolysis",

author = "Ronit Herscu-Kluska and Haim Cohen and Dan Meyerstein",

note = "Funding Information: This study was supported in part by a grant from the Israel Atomic Energy Committee. D.M. expresses his thanks to Mrs. Irene Evens for her continuous interest and support. ",

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T1 - Formation of an observable intermediate during the reduction of [Co (III)(NH3)5CN]2+ by ̇CR1R2(OH) radicals

AU - Herscu-Kluska, Ronit

AU - Cohen, Haim

AU - Meyerstein, Dan

N1 - Funding Information: This study was supported in part by a grant from the Israel Atomic Energy Committee. D.M. expresses his thanks to Mrs. Irene Evens for her continuous interest and support.

PY - 2005/6/1

Y1 - 2005/6/1

N2 - ̇CR1R2OH, Ri = CH 3 or H, react with the complex [CoIII(NH3) 5CN]2+ to form an observable intermediate probably via bonding to the nitrogen of the cyanide. This intermediate isomerizes to form a second intermediate. The second intermediate decomposes into Co 2+(aq), 5NH4+, CN- and R 1R2CO. The plausible structures of the intermediates are discussed. The radicals ̇CH3, ̇CH 2CHO, CH(OH)CO2-, CH2C(CH3)2OH,CO2- and CH3O2 are considerably less reactive towards this complex, the formation of intermediates in their presence is not observed.

AB - ̇CR1R2OH, Ri = CH 3 or H, react with the complex [CoIII(NH3) 5CN]2+ to form an observable intermediate probably via bonding to the nitrogen of the cyanide. This intermediate isomerizes to form a second intermediate. The second intermediate decomposes into Co 2+(aq), 5NH4+, CN- and R 1R2CO. The plausible structures of the intermediates are discussed. The radicals ̇CH3, ̇CH 2CHO, CH(OH)CO2-, CH2C(CH3)2OH,CO2- and CH3O2 are considerably less reactive towards this complex, the formation of intermediates in their presence is not observed.

KW - Alkyl radicals

KW - Cobalt complex

KW - Pulse radiolysis

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