Nadir Jori, Juan J Moreno, R A Keerthi Shivaraam, Thayalan Rajeshkumar, Rosario Scopelliti, Laurent Maron, Jesús Campos, Marinella Mazzanti
End-on binding of dinitrogen to low valent metal centres is common in transition metal chemistry but remains extremely rare in f-elements chemistry. In particular, heterobimetallic end-on N2 bridged complexes of lanthanides are unprecedented despite their potential relevance in catalytic reduction of dinitrogen. Here we report the synthesis and characterization of a series of N2 bridged heterobimetallic complexes of U(iii), Ln(iii) and Ln(ii) which were prepared by reacting the Fe dinitrogen complex [Fe(depe)2 (N2 )] (depe = 1,2-bis(diethylphosphino)-ethane), complex A with [MIII {N(SiMe3 )2 }3 ] (M = U, Ce, Sm, Dy, Tm) and [LnII {N(SiMe3 )2 }2 ], (Ln = Sm, Yb)...
May 8, 2024: Chemical Science