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.

中文翻译：

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用二价三氟甲磺酸sa激活小分子：裂解O ₂ †的协同作用

二价三氟甲磺酸sa盐不与CO ₂或水反应，但会与痕量的O ₂或N ₂ O反应形成四聚双氧代ox基序。带O的反应₂是图4e ^-还原裂解，其中电子从四个不同的钐中心到来。这突显了切割O ₂的罕见协同作用，这在二价镧系元素络合物中尚无先例。另外，将CO _2添加到四聚体双-氧代中间体中导致形成四聚体双碳酸酯三氟甲磺酸mar。因此，CO ₂与微量O ₂的伴随反应 导致相同的双碳酸酯四聚体组装体。