CO2 conversion to isocyanate via multiple N–Si bond cleavage at a bulky uranium(III) complex

Camp, ClémentChatelain, LucileKefalidis, Christos E.Pécaut, JacquesMaron, LaurentMazzanti, Marinella2015-10-062015-10-062015-10-06201510.1039/C5CC06707Chttps://infoscience.epfl.ch/handle/20.500.14299/119604WOS:000363167600025The reaction of the sterically saturated uranium(III) tetrasilylamido complex [K(18c6)][U(N(SiMe3)(2))(4)] with CO2 leads to CO2 insertion into the U-N bond affording the stable U(IV) isocyanate complex [K(18c6)][U(N(SiMe3)(2))(3)(NCO)(2)](n) that was crystallographically characterized. DFT studies indicate that the reaction involves the [2+2] cyclo-addition of a double bond of O=CO to the U-N(SiMe3)(2) bond and proceeds to the final product through multiple silyl migration steps.CO2 conversion to isocyanate via multiple N–Si bond cleavage at a bulky uranium(III) complextext::journal::journal article::research article