84622-99-1

Upstream product

• 18475-84-8 iron(II) carbonyl dibromide 
• 15739-18-1 tris(triphenylphosphine)dicarbonyliron⁽⁰⁾ 
• 36673-36-6 dibromobis(triphenylphosphine)nickel(II) 
• 13463-40-6 iron pentacarbonyl 
• 13462-88-9 nickel dibromide 
• 16594-62-0 (CO)3Fe(P(C₆H₅)3)2Br⁽¹⁺⁾*FeCl₃Br^(1-)={(CO)3Fe(P(C₆H₅)3)2Br}FeCl₃Br 
• 16592-02-2 (CO)3Fe(P(C₆H₅)3)2Br⁽¹⁺⁾*AlCl₃Br^(1-)={(CO)3Fe(P(C₆H₅)3)2Br}AlCl₃Br 
• 15739-18-1 (CO)2Fe(P(C₆H₅)3)3 

Downstream Products

• 16592-02-2 (CO)3Fe(P(C₆H₅)3)2Br⁽¹⁺⁾*AlCl₃Br^(1-)={(CO)3Fe(P(C₆H₅)3)2Br}AlCl₃Br 
• 16594-62-0 (CO)3Fe(P(C₆H₅)3)2Br⁽¹⁺⁾*FeCl₃Br^(1-)={(CO)3Fe(P(C₆H₅)3)2Br}FeCl₃Br 
• 85987-04-8 (t-butylisocyanide)dicarbonyldibromo(triphenylphosphine)iron(II) 
• 85987-05-9 (cyclohexylisocyanide)dicarbonyldibromo(triphenylphosphine)iron(II) 
• 86015-65-8 triphenylphosphine(phenylisocyanide)dicarbonyldibromoiron(II) 
• 86015-70-5 bis(ethylisocyanide)carbonyldibromo(triphenylphosphine)iron(II) 
• 86015-62-5 triphenylphosphine(ethylisocyanide)dicarbonyldibromoiron(II) 
• 85987-03-7 bis(n-propylisocyanide)carbonyldibromo(triphenylphosphine)iron(II) 
• 86015-63-6 triphenylphosphine(n-propylisocyanide)dicarbonyldibromoiron(II) 
• 86015-64-7 triphenylphosphine(n-butylisocyanide)dicarbonyldibromoiron(II) 
• 86015-69-2 bis(methylisocyanide)carbonyldibromo(triphenylphosphine)iron(II) 
• 86015-61-4 triphenylphosphine(methylisocyanide)dicarbonyldibromoiron(II) 
• 14741-34-5 tricarbonyl bis(triphenylphosphine) iron 

Relevant academic research and scientific papers

Alkyl and η2-acyl complexes of iron(II)

The reduction with sodium amalgam in acetonitrile (MeCN) of [Fe(CO)2L2X2] (X = Cl, Br, I; L = PMe3, PMe2Ph,P(n-Bu)3, PMePh2, P(i-Bu)3, P(i-Pr)3, PEtPh2, PPh3) gives a mixture of two different complexes in equilibrium. One is probably the cluster complex [Fe(CO)2L2]3, isoelectronic with [Fe3(CO)12]; the other is the complex [Fe(CO)2L2(MeCN)]. The mixture in equilibrium reacts with RI (R = CH3, C2H6) to give oxidative addition products. With L = PMe3, PMe2Ph, and P(n-Bu)3 the products are the alkyl complexes [Fe(CO)2L2(R)I]. With L = PMePh2, PEtPh2, P(i-Bu)3, and PPh3 the reaction products are the η2-acyl complexes [Fe(CO)L2(η-COR)I]. Complex [Fe(CO)PMePh2)2(η2-COCH 3)I·2CH2Cl2] was analyzed by the single-crystal X-ray diffraction method. It crystallizes in the monoclinic space group P21/n with lattice parameters a = 23.603 (4) A?, b = 12.256 (3) A?, c = 12.318 (3) A?, and β = 97.08 (2)°; it contains four molecules per cell. The structure was solved by using 2642 observed reflections and refined to Rw = 0.062. The electronic and steric features of the phosphine ligands, which stabilize the η2-acyl structure, are discussed, the steric hindrance appearing to be the most important factor for the same metal. The effect of the nature of the metal is also discussed, the stability of the η2-acyl structure being correlated with the number of the d electrons on the metal in its formal oxidation state.

Some Reactions of Tris(Triphenylphosphine)-dicarbonyliron(0)

Tris(triphenylphosphine)-dicarbonyliron(0) (I) undergoes substitution reactions with trimethylphosphite, pyridine, dimethyl sulphoxide and methylisocyanide.Substitution takes place via dissociation of I to a coordinatively unsaturated 16 electron complex, which is a highly reactive unstable intermediate.Both steric and electronic factors play a prominent role in deciding the feasibility of the reaction.Steric factor is expressed in terms of τ, the cone angle of the ligand, and electronic factor in terms of A1 mode of CO stretching frequency in Ni(CO)3L, where L is ligand for which the electronic factor is expressed in terms of νCO.Ligands with cone angle τ, greater than that of triphenylphosphine e.g. t-butylphosphine, do not react.In the reaction of I with molecular hydrogen and bromine, oxidative addition takes place.Diphenylacetylene forms two isomers, whereas carbon disulphide forms a ?-complex on reaction with I.