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

Author(s) Xémard, M.; Cordier, M.; Louyriac, E.; Maron, L.; Clavaguéra, C.; Nocton, G.
Journal Dalton Trans
Date Published 2018 Jun 28

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.

DOI 10.1039/c8dt02196a
ISSN 1477-9234
Citation Dalton Trans. 2018.

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