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Issue 2, 2008

Reductive disproportionation of carbon dioxide to carbonate and squarate products using a mixed-sandwich U(iii) complex

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Abstract

The mixed-sandwich U(III) complexes [U(η-C8H6{SiiPr3-1,4}2)(η-CpR)(THF)] (R = Me5, Me4H) react with CO2 to give free CO and the U(IV) carbonate products [U(η-C8H6{SiiPr3-1,4}2)(η-CpR)]2(μ-η12-CO3)]; the latter has been structurally characterised for R = Me4H; a 25% molar excess of the U(III) reductant gives a mixture of the carbonate and squarate [U(η-C8H6{SiiPr3-1,4}2)(η-C5Me4H)]2(μ-η22-C4O4) products—the first synthesis of an oxocarbon from a CO2 carbon source.

Graphical abstract: Reductive disproportionation of carbon dioxide to carbonate and squarate products using a mixed-sandwich U(iii) complex

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Article information


Submitted
05 Sep 2008
Accepted
24 Oct 2008
First published
11 Nov 2008

Chem. Commun., 2008
Article type
Communication

Reductive disproportionation of carbon dioxide to carbonate and squarate products using a mixed-sandwich U(III) complex

O. T. Summerscales, A. S. P. Frey, F. G. N. Cloke and P. B. Hitchcock, Chem. Commun., 2008
DOI: 10.1039/B815576C

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