14741-34-5Relevant articles and documents
Heterometallic Cu2Fe and Zn2Fe2Complexes Derived from [Fe(CO)4]2-and Cu/Fe Bifunctional N2O Activation Reactivity
Lakliang, Yutthana,Mankad, Neal P.
, p. 2043 - 2046 (2020)
The synthesis and characterization of two heterometallic clusters, [(IPr)Cu]2Fe(CO)4 (1) and [(IPr)ZnFe(CO)4]2 (2), derived from Collman's reagent are reported. Methylation of 1 with CH3I to produce (IPr)CuI and (IPr)CuFe(Me)(CO)4 (3) was used to calibrate the relative reactivity of 1 to the previously studied analogue (IPr)Cu-FeCp(CO)2. Bifunctional N2O activation by 1 resulted in oxidation of a CO ligand to carbonate rather than the more typically observed CO2, producing [(IPr)Cu]2(μ-CO3) (4) stoichiometrically along with an iron byproduct that was trapped with PPh3 as trans-Fe(CO)3(PPh3)2.
Photochemistry of thin amorphous films of Fe(CO)4PPh3 on Si(111) surfaces
Blair, Sharon L.,Hill, Ross H.
, p. 63 - 73 (1998)
The photochemical reactions of Fe(CO)4PPh3 and Fe(CO)3(PPh3)2 as amorphous films on silicon surfaces are presented. The mechanism of the reaction of Fe(CO)4PPh3 in the films has been studied in some detail. Initial CO loss leads to a thermally unstable intermediate, Fe(CO)3PPh3, which decomposes in the film leading to the production of iron. In thick films photoproduced CO remains trapped in the film and may react with Fe(CO)3PPh3, regenerating the starting material. Further evidence for this intermediate arises from experiments conducted with PPh3 added to the film. In these films the initial photoproduct is trapped by PPh3 yielding Fe(CO)3(PPh3)2. A quantitative study of the quantum yield efficiency in these films was undertaken. The Fe(CO)3(PPh3)2 films are photosensitive undergoing CO loss to yield Fe(CO)2(PPh3)2, as demonstrated by its trapping, by PPh3, to form Fe(CO)2(PPh3)3. Extended photolysis of Fe(CO)3(PPh3)2 films, including those containing photoproduced Fe(CO)2(PPh3)3, results in the formation of iron. The surface photochemistry of both Fe(CO)4PPh3, and Fe(CO)3(PPh3)2 are shown to be compatible with standard lithography. Patterns of 1×100 μm lines of iron oxide were easily produced on a silicon surface.
Expedient synthesis of (Ph3P)2Fe(CO)3
Brunet, J. J.,Kindela, F. B.,Neibecker, D.
, p. 209 - 212 (1989)
A one-step, high yield synthesis of highly pure (Ph3P)2Fe(CO)3 from KHFe(CO)4 and Ph3P in ethanol is described.
Iron pentacarbonyl in alkoxy- and aminocarbonylation of aromatic halides
Babjak, Matej,Caletková, O?ga,?uri?ová, Diana,Gracza, Tibor
supporting information, p. 2579 - 2584 (2015/01/09)
We have identified reaction conditions for a Heck-type carbonylation based on [Fe(CO)5]. Preliminary optimization of alkoxycarbonylation on 2-bromonaphthalene defined functioning composition of the reaction mixture which was then applied on a small set of (hetero)aromatic halides. Respective aminocarbonylation of these halides with different amines, including aniline and benzotriazole, was accomplished with reasonable results.
Iron-catalyzed hydrogen production from formic acid
Boddien, Albert,Loges, Bjoern,Gaertner, Felix,Torborg, Christian,Fumino, Koichi,Junge, Henrik,Ludwig, Ralf,Beller, Matthias
, p. 8924 - 8934 (2010/08/21)
Hydrogen represents a clean energy source, which can be efficiently used in fuel cells generating electricity with water as the only byproduct. However, hydrogen generation from renewables under mild conditions and efficient hydrogen storage in a safe and reversible manner constitute important challenges. In this respect formic acid (HCO2H) represents a convenient hydrogen storage material, because it is one of the major products from biomass and can undergo selective decomposition to hydrogen and carbon dioxide in the presence of suitable catalysts. Here, the first light-driven iron-based catalytic system for hydrogen generation from formic acid is reported. By application of a catalyst formed in situ from inexpensive Fe3(CO)12, 2,2′:6′2′′-terpyridine or 1,10-phenanthroline, and triphenylphosphine, hydrogen generation is possible under visible light irradiation and ambient temperature. Depending on the kind of N-ligands significant catalyst turnover numbers (>100) and turnover frequencies (up to 200 h-1) are observed, which are the highest known to date for nonprecious metal catalyzed hydrogen generation from formic acid. NMR, IR studies, and DFT calculations of iron complexes, which are formed under reaction conditions, confirm that PPh3 plays an active role in the catalytic cycle and that N-ligands enhance the stability of the system. It is shown that the reaction mechanism includes iron hydride species which are generated exclusively under irradiation with visible light.
