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Issue 28, 2018
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Small molecule activation with divalent samarium triflate: a synergistic effort to cleave O2

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Abstract

The divalent samarium triflate salt does not react with CO2 or water, but does react with traces of O2 or N2O to form a tetrameric bis-oxo samarium motif. The reaction with O2 is a 4e reductive cleavage where the electrons are coming from four different samarium centers. This highlights a rare synergistic effect for cleaving O2, which has no precedent in divalent lanthanide complexes. Additionally, the addition of CO2 to the tetrameric bis-oxo intermediate leads to the formation of a tetrameric bis-carbonate samarium triflate. Thus, the concomitant reaction of CO2 with traces of O2 leads to the same bis-carbonate tetrameric assembly.

Graphical abstract: Small molecule activation with divalent samarium triflate: a synergistic effort to cleave O2

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Publication details

The article was received on 29 May 2018, accepted on 16 Jun 2018 and first published on 18 Jun 2018


Article type: Communication
DOI: 10.1039/C8DT02196A
Dalton Trans., 2018,47, 9226-9230

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    Small molecule activation with divalent samarium triflate: a synergistic effort to cleave O2

    M. Xémard, M. Cordier, E. Louyriac, L. Maron, C. Clavaguéra and G. Nocton, Dalton Trans., 2018, 47, 9226
    DOI: 10.1039/C8DT02196A

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