Uranium and thorium complexes of the phosphaethynolate ion

Clément Camp (1) , Nicholas Settineri (1) , Julia Lefèvre (2) , Andrew R Jupp (3) , José M Goicoechea (3) , Laurent Maron (2) , John Arnold (1)

1 Department of Chemistry [Berkeley]
2 LPCNO - Laboratoire de physique et chimie des nano-objets
3 Department of Chemistry [Oxford]

Newtris-amidinate actinide (Th, U) complexes containing a rare O-bound terminal phosphaethynolate(OCP) ligand were synthesized and fully characterized. The cyanate (OCN) and thiocyanate (SCN)analogs were prepared for comparison and feature a preferential N-coordination to the actinide metals.The Th(amid)3(OCP) complex reacts with Ni(COD)2to yield the heterobimetallic adduct (amid)3Th(m-h1(O):h2(C,P)-OCP)Ni(COD) featuring an unprecedented reduced (OCP) bent fragment bridging the twometals.

Domaines: Chimie

Clément Camp, Nicholas Settineri, Julia Lefèvre, Andrew R Jupp, José M Goicoechea, et al.. Uranium and thorium complexes of the phosphaethynolate ion. Chemical Science, 2015, 6 (11), pp.6379--6384. ⟨10.1039/c5sc02150b⟩. ⟨hal-01877473⟩