132854-92-3

Upstream product

• 115338-91-5 trans-CH₃OIr(CO)(P(p-tolyl)3)2 
• 115338-91-5 Ir(CO)(OCH₃)(P(C₆H₄CH₃)3)2 

Downstream Products

• 42482-33-7 trans-Ir(CO)I(P(p-tolyl)3)2 
• 28195-56-4 trans-carbonylchloro-bis(tri-(p-tolyl)phosphine)iridium(I) 
• 129540-38-1 Ir(CO)(Cl)2(H)(P(C₆H₄CH₃)3)2 
• 136762-80-6 trans-Ir(OC(O)CH₃)(CO)(P(p-tolyl)3)2 
• 136762-81-7 H₃Ir(CO)(P(C₆H₄CH₃)3)2 
• 132854-93-4 Ir(CO)(OH)(SO₄)(P(C₆H₄CH₃)3)2 

Relevant academic research and scientific papers

Displacement of hard bases from a soft center by a soft ligand: Reaction of Ir(CO)(OH)(SO4)L2 (L = PPh3, P(p-tolyl)3) with CO and the crystal structure of [Ir(CO)3PPh3]2+[HSO4 -]·1/3H2O

The iridium(III) complexes Ir(CO)(OH)(SO4)L2, L = PPh3, P(p-tolyl)3, have been prepared and shown to react with CO, yielding the iridium(I) species [Ir(CO)3L2+][HSO4-] (L = PPh3, P(p-tolyl)3) and CO2. The species [Ir(CO)3(PPh3)2+][HSO 4-]·1/3H2O crystallizes in the centrosymmetric rhombohedral space group R3 [C3i2; No. 148]. Cell parameters (for the hexagonal setting) are a = 40.938 (7) A?, c = 11.850 (2) A?, V = 17199 A?3, and Z = 18. Diffraction data (Mo Kα?, 2θ = 4.0-45.0°) were collected on a Syntex P21 diffractometer, and the structure was refined to RF = 6.1% for all 4772 unique data (RF = 4.2% for those 3673 data with |Fo| > 6.0σ (|Fo|)).

Bond-forming reactions to a coordinated hydroxo group: Reaction of trans-Ir(CO)(OH)(P(p-tolyl)3)2 with MeI, EtI, HCl, CH3C(O)Cl, and H2

Reactions of trans-Ir(CO)(OH)(P(p-tolyl)3)2 with MeI, EtI, HCl, and CH3C(O)Cl lead to the formation of bonds between the hydroxide and the adding group. For MeI and EtI addition, where the alcohols are formed, the reactions occur by oxidative addition followed by reductive elimination to form the carbon-oxygen bond. Reaction with HCl proceeds very rapidly by protonation of the hydroxide to eliminate H2O. The reaction of trans-Ir(CO)(OH)(P(p-tolyl)3)2 with acetyl chloride gives a mixture of products from initial attack of acetyl chloride on the hydroxide to produce acetic acid. Subsequent oxidative addition of the acid produces an acetate complex. Reaction of trans-Ir(CO)(OH)(P(p-tolyl)3)2 with H2 produces the trihydride H3Ir(CO)(P(p-tolyl)3)2 and H2O. This reaction is partially reversible; treatment of the trihydride with H2O produces the hydroxy complex. The reactions reported here are among the first that exhibit bond formation to a metal-bound hydroxo group.