201612-05-7

Basic information

• Product Name: Os₃(CO)11(P(C₆H₅)(CHCH₂)2)
• CAS NO: 201612-05-7
• Molecular Weight: 1040.89
• Mol File: 201612-05-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Os₃(CO)11(P(C₆H₅)(CHCH₂)2)(CAS DataBase Reference)
• NIST Chemistry Reference: Os₃(CO)11(P(C₆H₅)(CHCH₂)2)(201612-05-7)
• EPA Substance Registry System: Os₃(CO)11(P(C₆H₅)(CHCH₂)2)(201612-05-7)

Safety Data

• Hazardous Substances Data: 201612-05-7(Hazardous Substances Data)

Upstream product

• 15696-40-9 dodecacarbonyl triosmium 
• 26681-88-9 divinylphenylphosphine 

Relevant articles and documents

The oxidative addition of a vinylic C-H bond of divinyl(phenyl)phosphine at M3(CO)12 carbonyls (M = RU, Os). Stepwise formation and crystal structure of [(μ-H)RU3(CO)8{PPh(CH=Ch2)2}{μ3-PPh(CH=CH2) (CH=CH)}]

The metal carbonyls M3(CO)12 (M = Ru, Os) react with diphenylvinylphosphine (PPh2CH=CH2) and divinylphenylphosphine (PPh(CH=CH2)2) in n-octane or toluene giving carbonyl substitution products of formulae M3(CO)11L (1, M = Ru; 1′, M = Os), M3(CO)10L (2; 2′) and M3(CO)10L2 (3; 3′) (L = PPh2CH = CH2 or PPh(CH = CH2)2). When M = Os the reactions stop at this stage. When M = Ru oxidative addition of the vinylic C-H bond of one of the phosphinic ligands of complexes 3 occurs to form [(μ-H)Ru3(CO)8(PPh2CH=CH2) {μ3-PPh2(CH=CH)}] (4a) and [(μ-H)Ru3(CO)8{PPh(CH=CH2)2}{μ3-PPh(CH=CH2)(CH=CH)}] (4b), starting from PPh2CH=CH2 and PPh(CH=CH2)2 respectively; this process is favoured by the TLC material and is faster for PPh2CH=CH2 than for PPh(CH=CH2)2. The structure of 4b, determined by X-ray diffraction methods, consists of a triangle of Ru atoms bound to eight terminal carbonyls. The PPh(CH=CH2)2 ligand is σ-bound to one of the Ru atoms through the P atom, whilst the PPh(CH=CH2)(CH=CH) moiety interacts with all of the three metals, being σ-bound to two Ru atoms through the P and C atoms and π-bound to the third Ru atom through the double bond.