56557-01-8

Upstream product

• 21050-13-5 bis(triphenylphosphine)iminium chloride 
• 117678-68-9 dodecacarbonyltetrairidium 
• 13463-40-6 iron pentacarbonyl 
• 134681-82-6 3{N(P(C₆H₅)3)2}⁽¹⁺⁾*FeIr₅(CO)15^(3-)={N(P(C₆H₅)3)2}3{FeIr₅(CO)15} 

Downstream Products

• 106724-90-7 [N(PPh₃)2][IrCl₂(CO)2] 
• 125519-30-4 ((C₆H₅)3P)2N⁽¹⁺⁾*IrCl₃(CO)2(COCH₂(C₆H₅))^(1-) = (((C₆H₅)3P)2N)(IrCl₃(CO)2(COCH₂(C₆H₅))) 
• 125519-28-0 all cis-{(Ph₃P)2}{IrBr₂(CO)2(CH₂Ph)2} 
• 125540-48-9 all cis-{(Ph₃P)2}{IrBr₂(CO)2(CH₂CO₂Me)2} 
• 134681-85-9 2{N(P(C₆H₅)3)2}⁽¹⁺⁾*{HFeIr₅(CO)15}^(2-)={N(P(C₆H₅)3)2}2{HFeIr₅(CO)15} 
• 134681-82-6 3{N(P(C₆H₅)3)2}⁽¹⁺⁾*FeIr₅(CO)15^(3-)={N(P(C₆H₅)3)2}3{FeIr₅(CO)15} 
• 220115-46-8 [PtIrCl(CO)2(μ-dppm)] 
• 220115-49-1 [PrIr2(CO)4(μ-CO)(μ-dppm)2] 

Relevant academic research and scientific papers

Organometallic chemistry on the basic magnesium oxide surface: Formation of [HIr4(CO)11]-, [Ir6(CO)15]2-, and [Ir8(CO)22]2-

Samples prepared by adsorption of [Ir(CO)2(acac)] on partially dehydroxylated MgO and on hydrated MgO were treated in CO at room temperature to form supported [HIr4(CO)11]- and [Ir8(CO)22]2-, respectively. A sample prepared by adsorption of [Ir4(CO)12] on partially dehydroxylated MgO was treated with water-saturated helium at room temperature to form [Ir6(CO)15]2- on the MgO surface. Each of these anions was extracted in high yield into solution by cation metathesis with [PPN][Cl]. Consecutive formation of [HIr4(CO)11], [Ir8(CO)22]2, and [Ir6(CO)15]2- on the MgO surface was observed as the temperature of the carbonylalion reaction was increased from 25 to 200°C. The organometallic chemistry occurring on the basic MgO surface is similar to that occurring in basic solution.

Iron-iridium mixed-metal carbonyl clusters. 3. 2 Synthesis, chemical characterization, electrochemical behavior, and solid-state structures of [NEt4]3[FeIr5(CO)15], [NMe3(CH2Ph)]2[HFeIr5(CO) 15], and [NMe3(CH2Ph)][FeIr5 ...

Full title: Iron-iridium mixed-metal carbonyl clusters. 3. 2 Synthesis, chemical characterization, electrochemical behavior, and solid-state structures of [NEt4]3[FeIr5(CO)15], [NMe3(CH2Ph)]2[HFeIr5(CO) 15], and [NMe3(CH2Ph)][FeIr5(CO)16]. Spectroscopic and chemical evidence for the existence of [HFe3Ir(CO)12]2-, [H2Fe3Ir(CO)12]-, and [H2FeIr5(CO)15]-. The reaction of [HFe(CO)4]- with Ir(CO)3Br (in molar ratio 3:1) produced [HFe3Ir(CO)12]2- (1), which reacts with acids to yield the dihydride complex [H2Fe3Ir(CO)12]- (2). The salt [NEt4]2[HFe3Ir(CO)12] crystallizes in the orthorhombic space group Pnma, with a = 20.346 (7) ?, b = 15.135 (2) ?, c = 11.807 (5) ?, V = 3636 (1) ?3, and Z = 4; a full structural determination was prevented by the poor quality of the crystals. The reaction of [FeIr4(CO)15]2- with [Ir(CO)4]-, in refluxing acetonitrile, has yielded the new compound [FeIr5(CO)15]3- (3). The trianion reacts with stoichiometric amount of H+ to form [HFeIr5(CO)15]2- (4) and with acids in excess to yield the corresponding dihydride derivative [H2FeIr5(CO)15]- (5), which, at room temperature, is not stable and is readily transformed into [FeIr5(CO)14]- (6). The salts of 3, 4, and 6 were characterized by single-crystal X-ray analyses. [NEt4]3[FeIr5(CO)15] crystallizes in the triclinic space group P1, with a = 18.827 (5) ?, b = 19.476 (6) ?, c = 18.064 (5) ?, α = 117.06 (3)°, β = 90.76 (2)°, γ = 61.71 (2)°, and Z = 4. The octahedral carbonyl cluster contains 12 terminal and three edge-bridging carbonyl groups. [NMe3(CH2Ph)]2[HFeIr5(CO) 15] crystallizes in the triclinic space group P1, with a = 10.218 (3) ?, b = 10.989 (4) ?, c = 20.757 (5) ?, α = 101.07 (2)°, β = 97.61 (2)°, γ = 108.13 (2)°, and Z = 2. The octahedral metal framework of the hydrido carbonyl cluster is surrounded by 11 terminal and four edge-bridging carbonyl groups; the hydrogen atom was located from the X-ray data and it is terminally bonded to iridium with a Ir-H distance of 1.60 (9) ?. [NMe3-(CH2Ph)][FeIr5(CO)16] crystallizes in the triclinic space group P1, with a = 9.727 (2) ?, b = 16.296 (2) ?, c = 22.056 (2) ?, α = 79.99 (2)°, β = 80.61 (2)°, γ = 83.83 (1)°, and Z = 4. The metal carbonyl cluster possess a metal cage based on an octahedral unit surrounded by 12 terminal and four face bridging carbonyl groups. The electrochemical study of the redox propensity of [FeIr5(CO)16]- and [FeIr5(CO)15]3- allowed us to elucidate the mechanistic aspects of their interconversion.

NEW SYNTHESES OF THE (-) AND (-) ANIONS

The (-) and (-) anions have been synthesized by reduction (in alkaline medium under carbon monoxide atmosphere) of , Rh4(CO)12, Rh6(CO)16, and Ir4(CO)12 or directly from RhCl3*xH2O and IrCl3*xH2O.Several reducing systems such as KOH in dimethyl sulphoxide or dimethylformamide, sodium anthracene or sodium benzophenone ketyl in tetrahydrofuran solution and KOH or ButOK in 1,2-dimethoxyethane have been employed.The first two reducing systems gave the best results.The anions obtained have usually been isolated as salts of the μ-nitrido-bis(triphenylphosphorus)(+1) cation.