16743-46-7

Basic information

• Product Name: tetracarbonyl-bis(diphenylphosphino)methane-chromium(0)
• Synonyms: tetracarbonyl-bis(diphenylphosphino)methane-chromium(0)
• CAS NO: 16743-46-7
• Molecular Weight: 548.435
• Mol File: 16743-46-7.mol
• Article Data: 8

Chemical Properties

• CAS DataBase Reference: tetracarbonyl-bis(diphenylphosphino)methane-chromium(0)(CAS DataBase Reference)
• NIST Chemistry Reference: tetracarbonyl-bis(diphenylphosphino)methane-chromium(0)(16743-46-7)
• EPA Substance Registry System: tetracarbonyl-bis(diphenylphosphino)methane-chromium(0)(16743-46-7)

Safety Data

• Hazardous Substances Data: 16743-46-7(Hazardous Substances Data)

Upstream product

• 62637-93-8 trimethylamine-N-oxide dihydrate 
• 199620-14-9 chromium⁽⁰⁾ hexacarbonyl 
• 2071-20-7 bis-diphenylphosphinomethane 
• 12301-34-7 tetracarbonyl(η2:2-cyclooctadiene)chromium(0) 
• 12146-36-0 tetracarbonylnorbornadienchrom 
• 64345-29-5 [Pd2Cl2(μ-bis(diphenylphosphino)methane)2] 
• 107495-21-6 Cr(CO)4(((C₆H₅)2P)2CH₂)⁽¹⁺⁾*PF₆^(1-)=Cr(CO)4(((C₆H₅)2P)2CH₂)PF₆ 
• 77110-93-1 {(C₂H₅)4N}⁽¹⁺⁾*{Cr(CO)5H}^(1-)={(C₂H₅)4N}{Cr(CO)5H} 
• 13007-92-6 chromium hexacarbonyl 

Downstream Products

• 82328-54-9 [Cr(CO)4(Ph₂PCH(CH₂Ph)PPh₂)] 
• 91382-19-3 Cr(CO)4(P(C₆H₅)2)2CCC₆H₅(OCOC₆H₅) 
• 91382-20-6 Cr(CO)4(P(C₆H₅)2)2CCC₆H₄CH₃(OCOC₆H₄CH₃) 
• 1180651-49-3 (Ph₂PCH(n-hexyl)PPh₂)Cr(CO)4 
• 82328-51-6 [Cr(CO)4(Ph₂PCHMePPh₂)] 
• 167111-53-7 Cr(CO)4((C₆H₅)2PCH(Au(P(C₆H₅)3))P(C₆H₅)2) 
• 76253-55-9 Cr(CO)4(tris(diphenylphosphinomethane)) 
• 81780-06-5 mer-[bis(diphenylphosphino)methane]tricarbonylnitrosylchromium tetrafluoroborate 
• 82339-45-5 [Cr(CO)4(Ph₂PCH(SiMe₃)PPh₂)] 
• 82328-53-8 [Cr(CO)4(Ph₂PCH(CH₂CHCH₂)PPh₂)] 
• 82339-44-4 Tetracarbonyl[isopropylidenbis(diphenylphosphan)]chrom⁽⁰⁾ 
• 82328-13-0 Cr(CO)4(P(C₆H₅)2CH(COC₆H₅)P(C₆H₅)2) 
• 85683-23-4 [Cr(CO)4((C₆H₅)2PCH(CH₂OCH₃)P(C₆H₅)2)] 
• 91382-17-1 Cr(CO)4(P(C₆H₅)2CH(COC₆H₄CH₃)P(C₆H₅)2) 

Relevant articles and documents

Rapid synthesis of Group VI carbonyl complexes by coupling borohydride catalysis and microwave heating

Several Group VI tetracarbonyl phosphine and tertiary amine complexes [M(CO)4 L2, M = Cr, Mo, W, L2 = 2PPh 3, dppm, dppe, dppp, dppb, bpy, phen, dppf] were synthesized in minutes in the microwave at moderate temperature, atmospheric pressure, and utilizing NaBH4 as a catalyst. The reactions were optimized by careful solvent selection. The octahedral complexes were isolated in percent yields ranging from 17 to 95. The lower temperatures, shorter reaction times, benign solvents, and lower pressures as compared to the traditional thermal syntheses provide a rapid, eco-friendly synthetic route to these common Group VI complexes.

Microwave-assisted synthesis of group 6 (Cr, Mo, W) zerovalent organometallic carbonyl compounds

The microwave-assisted synthesis of a series of compounds of the form ML(CO)4 (M = Cr, Mo, W; L = en, bipy, dppm, dppe), results in the reduction of reaction times and an increase in yields over previously published syntheses. Reaction times are reduced by a factor of 5 to over 500.

Ligand substitution kinetics in M(CO)4 (η2:2-1,5-cyclooctadiene) complexes (M=Cr, Mo, W) - Substitution of 1,5-cyclooctadiene by bis(diphenylphosphino)alkanes

The thermal substitution kinetics of 1,5-cyclooctadiene (COD) by bis(diphenylphosphino)alkanes (PP), (C6H5)2P(CH2)nP(C 6H5)2 (n = 1, 2, 3) in M(CO)4(η2:2-COD) complexes (M = Cr, Mo, W), were studied by quantitative FT-IR spectroscopy. The reaction rate exhibits first-order dependence on the concentration of the starting complex, and the observed rate constant depends on the concentration of the leaving COD ligand and on the concentration and the nature of the entering PP ligand. In the proposed mechanism, the rate determining step is the cleavage of one metal-olefin bond of the COD ligand. A rate-law is derived from the proposed mechanism. The evaluation of the kinetic data gives the activation parameters which support an associative mechanism in the transition states. Both the observed rate constant and the activation parameters show little variation with the chain length of the diphosphine ligand.