146925-19-1

Basic information

• Product Name: (RhCl(CO)(P(C₆H₅)2CH₂P(C₆H₅)2))2
• CAS NO: 146925-19-1
• Molecular Weight: 1101.53
• Mol File: 146925-19-1.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: (RhCl(CO)(P(C₆H₅)2CH₂P(C₆H₅)2))2(CAS DataBase Reference)
• NIST Chemistry Reference: (RhCl(CO)(P(C₆H₅)2CH₂P(C₆H₅)2))2(146925-19-1)
• EPA Substance Registry System: (RhCl(CO)(P(C₆H₅)2CH₂P(C₆H₅)2))2(146925-19-1)

Safety Data

• Hazardous Substances Data: 146925-19-1(Hazardous Substances Data)

Upstream product

• 2071-20-7 bis-diphenylphosphinomethane 
• 12092-47-6 di-μ-chloro-bis(1,5-cyclooctadiene)dirhodium 
• 71647-01-3 Rh₂Cl(CO)2CO((C₆H₅)2PCH₂P(C₆H₅)2)2⁽¹⁺⁾*Cl^(1-)=[Rh₂Cl(CO)2CO((C₆H₅)2PCH₂P(C₆H₅)2)2]Cl 

Downstream Products

• 98535-90-1 {Rh2(μ-pyrazolato)(CO)2(μ-Ph2PCH2PPh2)2}Cl 
• 98536-00-6 {Rh2(μ-4-bromopyrazolato)(CO)2(μ-Ph2PCH2PPh2)2}ClO4 

Relevant articles and documents

Rhodium(I) macrocyclic and cage-like structures containing diphosphine bridging ligands

Abstract: Three series of rhodium organometallic complexes, mono-(1c, 2c, 5c, 6c), di-(1a-6a) and tetranuclear (1b, 5b, 6b), containing six different diphosphines 1,1′-bis(diphenylphosphino)methane or dppm (1), 1,2-bis(diphenylphosphino)ethane or dppe (2), 1,4-bis(diphenylphosphino)butane or dppb (3), bis(diphenylphosphino)acetylene or dppa (4), 1,2-bis(diphenylphosphino)benzene or dppbz (5) and 4,5-bis(diphenylphosphino)-9,9′-dimethylxanthene or xantphos (6) were successfully synthesised. These Rh(I) complexes were characterised by conventional techniques. The influence of the flexibility/rigidity of these P-donor ligands was carefully analysed, including their effect on both synthesis and catalysis. The luminescent properties of the dinuclear and tetranuclear complexes were investigated, and only those containing dppa, dppbz and xantphos displayed luminescence. Structures of the dinuclear complexes were modelled by using DFT methods in order to elucidate the most reasonable conformation. The different types of complexes were applied in the catalytic hydrogenation of (E)-4-phenylbut-3-en-2-one, showing high activity and similar catalytic behaviour. No cooperative effect could be inferred. Graphical Abstract: Three series of 1D, 2D and 3D rhodium complexes were successfully synthesised, and their emission properties were analysed. The large number of isomeric forms of the 2D were analysed by DFT methods. Their use in catalytic hydrogenation of (E)-4-phenylbut-3-en-2-one was studied showing high selectivity towards the formation of 4-phenylbutan-2-one.[Figure not available: see fulltext.]

Molecular A-frames. Identification and characterization of the rhodium A-frame precursor complex bis(μ-hydrido)dicarbonylbis(bis(diphenylphosphino) methane)dirhodium, Rh2(μ-H)2(CO)2(dppm)2

The product of the borohydride reduction of Rh2Cl2(CO)2(dppm)2 has been reinvestigated and characterized as the dihydrido species Rh2(μ-H)2(CO)2(dppm)2. Under vacuum or N2, the complex rapidly loses H2 as it undergoes a first-order decomposition. The decomposition is inhibited by H2, and solutions of the complex under H2 are somewhat stabilized. Under D2 the rapid formation of HD is observed. Solutions of the complex under H2 react cleanly with various substrates. With HCl, the quantitative conversion to Rh2Cl2(CO)2(dppm)2 is observed. The complex reacts with HBr to form Rh2Br2(CO)2(dppm)2 and the new complex [Rh2(μ-H)(μ-CO)Br2(dppm)2]Br. Methyl iodide reacts with the complex to form 1 equiv of CH4 and the new complex Rh2(μ-H)(μ-I)(CO)2(dppm)2.