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Crystalline Diuranium Phosphinidiide and μ-Phosphido Complexes with Symmetric and Asymmetric UPU Cores

Rookes, Thomas M. ; Gardner, Benedict M. ; Balázs, Gábor ; Gregson, Matthew ; Tuna, Floriana ; Wooles, Ashley J. ; Scheer, Manfred ; Liddle, Stephen T.



Abstract

Reaction of [U(Tren(TIPS))(PH2)] (1, Tren(TIPS)=N(CH(2)CH(2)NSiPri(3))(3)) with C6H5CH2K and [U(Tren(TIPS))(THF)][BPh4] (2) afforded a rare diuranium parent phosphinidiide complex [{U(Tren(TIP)S)}(2)(mu-PH)] (3). Treatment of 3 with C6H5CH2K and two equivalents of benzo-15-crown-5 ether (B15C5) gave the diuranium mu-phosphido complex [{U(Tren(TIPS))}2(mu-P)][K(B15C5)(2)] (4). Alternatively, ...

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