Small molecule activation with divalent samarium triflate: a synergistic effort to cleave O 2

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 syne...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 47; no. 28; pp. 9226 - 9230
Main Authors Xémard, Mathieu, Cordier, Marie, Louyriac, Elisa, Maron, Laurent, Clavaguéra, Carine, Nocton, Grégory
Format Journal Article
LanguageEnglish
Published England 17.07.2018
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Summary: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.
ISSN:1477-9226
1477-9234
DOI:10.1039/C8DT02196A