The reactions of the Cu(II)-nitrilotris(methylenephosphonic acid) complex with alkyl radicals in aqueous solutions

Guy Yardeni; Dan Meyerstein; Elena Mikhailovich-Jivin; Lioubov Kats; Haim Cohen; Israel Zilbermann; Eric Maimon

doi:10.1016/j.ica.2020.119759

The reactions of the Cu(II)-nitrilotris(methylenephosphonic acid) complex with alkyl radicals in aqueous solutions

Guy Yardeni
, Dan Meyerstein
, Elena Mikhailovich-Jivin
, Lioubov Kats
, Haim Cohen
, Israel Zilbermann
, Eric Maimon

מדעי הכימיה

פרסום מחקרי: פרסום בכתב עת › מאמר › ביקורת עמיתים

תקציר

The reactions of the radicals [rad]R, [rad]R = [rad]CH₃ or [rad]CH₂OH, with the complex Cu^II(ntp)(H₂O) were studied. The kinetics of formation of the transient complexes (ntp)Cu^III-R fit pseudo first order rate laws. The mechanism of decomposition of the transient complex (ntp)Cu^III-CH₃ at pH ≥ 7 involves homolysis of the Cu^III-C bond. However, at pH < 6 the decomposition mechanisms of the transient complexes (ntp)Cu^III-R involve inter-molecular electron transfer to Cu^II(ntp)(H₂O) and slow intra-molecular electron transfer.

שפה מקורית	אנגלית
מספר המאמר	119759
כתב עת	Inorganica Chimica Acta
כרך	511
מזהי עצם דיגיטלי (DOIs)	https://doi.org/10.1016/j.ica.2020.119759
סטטוס פרסום	פורסם - 1 אוק׳ 2020

גישה למסמך

10.1016/j.ica.2020.119759

קבצים וקישורים אחרים

Link to publication in Scopus

פורמט ציטוט ביבליוגרפי

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title = "The reactions of the Cu(II)-nitrilotris(methylenephosphonic acid) complex with alkyl radicals in aqueous solutions",

abstract = "The reactions of the radicals [rad]R, [rad]R = [rad]CH3 or [rad]CH2OH, with the complex CuII(ntp)(H2O) were studied. The kinetics of formation of the transient complexes (ntp)CuIII-R fit pseudo first order rate laws. The mechanism of decomposition of the transient complex (ntp)CuIII-CH3 at pH ≥ 7 involves homolysis of the CuIII-C bond. However, at pH < 6 the decomposition mechanisms of the transient complexes (ntp)CuIII-R involve inter-molecular electron transfer to CuII(ntp)(H2O) and slow intra-molecular electron transfer.",

keywords = "Alkyl radicals, Inter- and intra-molecular electron transfer, Ntp complexes, Pulse-radiolysis",

author = "Guy Yardeni and Dan Meyerstein and Elena Mikhailovich-Jivin and Lioubov Kats and Haim Cohen and Israel Zilbermann and Eric Maimon",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = oct,

day = "1",

doi = "10.1016/j.ica.2020.119759",

language = "אנגלית",

volume = "511",

journal = "Inorganica Chimica Acta",

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TY - JOUR

T1 - The reactions of the Cu(II)-nitrilotris(methylenephosphonic acid) complex with alkyl radicals in aqueous solutions

AU - Yardeni, Guy

AU - Meyerstein, Dan

AU - Mikhailovich-Jivin, Elena

AU - Kats, Lioubov

AU - Cohen, Haim

AU - Zilbermann, Israel

AU - Maimon, Eric

PY - 2020/10/1

Y1 - 2020/10/1

N2 - The reactions of the radicals [rad]R, [rad]R = [rad]CH3 or [rad]CH2OH, with the complex CuII(ntp)(H2O) were studied. The kinetics of formation of the transient complexes (ntp)CuIII-R fit pseudo first order rate laws. The mechanism of decomposition of the transient complex (ntp)CuIII-CH3 at pH ≥ 7 involves homolysis of the CuIII-C bond. However, at pH < 6 the decomposition mechanisms of the transient complexes (ntp)CuIII-R involve inter-molecular electron transfer to CuII(ntp)(H2O) and slow intra-molecular electron transfer.

AB - The reactions of the radicals [rad]R, [rad]R = [rad]CH3 or [rad]CH2OH, with the complex CuII(ntp)(H2O) were studied. The kinetics of formation of the transient complexes (ntp)CuIII-R fit pseudo first order rate laws. The mechanism of decomposition of the transient complex (ntp)CuIII-CH3 at pH ≥ 7 involves homolysis of the CuIII-C bond. However, at pH < 6 the decomposition mechanisms of the transient complexes (ntp)CuIII-R involve inter-molecular electron transfer to CuII(ntp)(H2O) and slow intra-molecular electron transfer.

KW - Alkyl radicals

KW - Inter- and intra-molecular electron transfer

KW - Ntp complexes

KW - Pulse-radiolysis

UR - https://www.scopus.com/pages/publications/85086092254

U2 - 10.1016/j.ica.2020.119759

DO - 10.1016/j.ica.2020.119759

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AN - SCOPUS:85086092254

SN - 0020-1693

VL - 511

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

M1 - 119759

ER -

The reactions of the Cu(II)-nitrilotris(methylenephosphonic acid) complex with alkyl radicals in aqueous solutions

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