253674-00-9Relevant academic research and scientific papers
A high-yield synthetic approach to trans-[Ir(ER3)2(CO)X] (ER3=PMe3, PEt3, PPhMe2, PPh2Me, P(OMe)3, AsMe3, AsEt3, AsPh3, SbPh3; X=Cl, Br)
Field, Leslie D.,Lawrenz, Eric T.,Ward, Antony J.
, p. 3031 - 3034 (1999)
The complex [Ir(CO)2X2][NBu4] (X=Cl, Br) forms Vaska-type complexes, trans-[Ir(ER3)2(CO)X], when treated with two equivalents of aryl- or alkyl-phosphines, arsines, or stibines under a CO atmosphere. The synthesis is general for a wide range of phosphines, arsines, or stibines irrespective of the cone angle. For small cone-angle ligands, the initial addition of ligand to [Ir(CO)2X2][NBu4] is performed at low temperature. The synthesis and characterisation of three new Vaska-type complexes trans-[Ir(P(OMe)3)2(CO)Cl], trans-[Ir(AsMe3)2(CO)Cl], and trans-[Ir(AsEt3)2(CO)Cl] is also reported. Elsevier Science Ltd.
