24554-47-0

Basic information

• Product Name: Mo(CO)4(P(CH₃)2(C₆H₅))2
• Synonyms: Mo(CO)4(P(CH₃)2(C₆H₅))2
• CAS NO: 24554-47-0
• Molecular Weight: 484.28
• Mol File: 24554-47-0.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Mo(CO)4(P(CH₃)2(C₆H₅))2(CAS DataBase Reference)
• NIST Chemistry Reference: Mo(CO)4(P(CH₃)2(C₆H₅))2(24554-47-0)
• EPA Substance Registry System: Mo(CO)4(P(CH₃)2(C₆H₅))2(24554-47-0)

Safety Data

• Hazardous Substances Data: 24554-47-0(Hazardous Substances Data)

Upstream product

• 16940-66-2 sodium tetrahydroborate 
• 672-66-2 Dimethyl(phenyl)phosphine 
• 13939-06-5 molybdenum hexacarbonyl 
• 22547-54-2 2Mo⁽²⁺⁾*4I^(1-)*8CO=Mo₂I₄(CO)8 
• 12146-37-1 (bicyclo[2.2.1]hepta-2,5-diene)tetracarbonylmolybdenum⁽⁰⁾ 

Downstream Products

• 24554-78-7 Mo(CO)5(P(C₆H₅)(CH₃)2) 

Relevant articles and documents

Complexes of molybdenum(III) and -(IV) with chloride and tertiary phosphine ligands; an omniumgatherium of new and old results

The preparations and structures of four new mixed chloro-tertiary phosphine complexes 1, 3-5 of molybdenum(III) are reported, as well as the structure of two previously known Mo(III) complexes 2, 6 and the structure of an [MoCl6](2-) compound 7. These res

Thermal reaction of Mo2I4(CO)8 with PMe2Ph, PEt2Ph, and pyridine. Formation of metal-metal quadruple bonds vs. disproportionation. X-ray crystal structures of MoI3(PMe2Ph)2(POMe2Ph) and [PHEt2Ph][MoI4(PEt2Ph)2]

The thermal reactions of Mo2I4(CO)8 with PMe2Ph, PEt2Ph, and pyridine (py) have been studied. The reaction with pyridine leads to disproportionation with formation of Mo(CO)3(py)3 and MoI3(py)3. The reactions with the two phosphines in toluene as solvent lead to disproportionation as well as to the formation of the Mo2I4L4 (L = PMe2Ph, PEt2Ph) dimers with metal-metal quadruple bonds. The use of THF as solvent in the PEt2Ph reaction suppresses the formation of the molybdenum(II) dimer in favor of disproportionation. Compounds Mo2I4(PMe2Ph)4 (1) and MoI3(PMe2Ph)2(POMe2Ph) (2) have been isolated from the PMe2Ph reaction in toluene, while the compound [PHEt2Ph][MoI4(PEt2Ph)2] (3) has been obtained from the PEt2Ph reaction in THF. Compounds 2 and 3 have been structually characterized by X-ray diffraction methods. Compound 2: space group Pmn21, a = 13.801 (3) ?, b = 12.303 (3) ?, c = 9.298 (1) ?, V = 1578.7 (8) ?3, Z = 2, R = 0.0516 (Rw = 0.0622) for 1038 data with Fo2 > 3σ(Fo2). Compound 3: space group P21/c, a = 20.144 (6) ?, b = 10.368 (2) ?, c = 19.822 (3) ?, β = 109.37°, V = 3904 (3) ?3, Z = 4, R = 0.0371 (Rw = 0.0540) for 3902 data with Fo2 > 3σ(Fo2). A possible mechanism that interrelates the two different pathways is discussed.