66701-87-9Relevant academic research and scientific papers
SYNTHESIS AND THERMOCHEMISTRY OF HFMo(CO)3C5Me5; COMPARISON OF CYCLOPENTADIENYL AND PENTAMETHYLCYCLOPENTADIENYL LIGANDS
Nolan, Steven P.,Hoff, Carl D.,Landrum, John T.
, p. 357 - 362 (1985)
Toluenemolybdenum tricarbonyl reacts quantitatively with pentamethylcyclopentadiene in THF at room temperature yielding HMo(CO)3C5Me5.The heat given off in this reaction has been measured by solution calorirmetry and indicates there is little difference i
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]
Cotton, F. Albert,Poli, Rinaldo
, p. 3624 - 3629 (2008/10/08)
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.
