21209-82-5Relevant 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 (2008/10/09)
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.
Synthesis, structure, and reactivity of a bridging difluorocarbene complex, [CpFeIr(Cl)(CO)2(PMe2Ph)2(μ-CO)(μ-CF 2)][BF4]·CH2Cl2
Crespi, Ann M.,Sabat, Michal,Shriver, Duward F.
, p. 812 - 816 (2008/10/08)
A heterobimetallic complex with a CF2 bridge, [CpFeIr(CO)2(PMe2Ph)2(μ-CO)(μ-CF 2)][BF4] (1a), was prepared by the oxidative addition of [CpFe(CO)2(CF2)]+ to Ir(Cl)(CO)(PMe2Ph)2. The [BPh4]- salt of the dimetal compound 1a undergoes a Lewis acid displacement with BCl3 to generate the BCl3 adduct of Ir(Cl)(CO)(PMe2Ph)2 and [CpFe(CO)2(CF2)][BPh4]. The crystal structure of 1a reveals a nearly symmetric CF2 bridge between Fe and Ir, whereas a CO ligand is in a semibridging position between these two metal atoms. Crystal data: monoclinic, space group P21/n, a = 9.308 (2) A?, b = 16.447 (3) A?, c = 20.997 (4) A?, β = 98.69 (2)°; Z = 4; 388 parameters were refined on 4901 reflections with I > 3σ(I) to yield R = 0.036 and Rw = 0.049.
