178691-66-2Relevant academic research and scientific papers
On the reaction of KPPh2 with Fe(CO)5 and Fe(CO)4CS; molecular structure of [(CO)4FePPh2]-
Petz, Wolfgang,Weller, Frank
, p. 715 - 721 (2007/10/03)
Fe(CO)5 reacts with [PPh2]- in THF at -78 °C to give the adduct [(CO)4FeCOPPh2]- (3) which decomposes at elevated temperature to give [(CO)4FePPh2]- (1), [Fe2(CO)8]2- (2) and (Ph2P)2 probably via a radical mechanism. Attempts to transfer 3 with the electrophiles MeSO3CF3 or Me3SnCl into the corresponding carbenes have failed and Fe(CO)5 along with Ph2PMe and Me3SnPPh2, respectively, are formed. 1 adds one equivalent of CS2 to generate [(CO)4FePPh2CS2]- (4). The [K-18-Krone-6] salt of 1 crystallizes in the triclinic space group P 1 with the unit cell parameters a = 929.5(2), b =1112.1 (2), c - 2017.9(4) pm, α = 100.29(3)°; β = 94.07(3)°; γ = 114.58(3)°. The existence of 3 is established by low temperature 31P NMR spectroscopy.
