We observe some precipitates of iron Salen in pyridine-ethanol solvent. The metal center in the complex seems interacting with pyrimidine to form an adduct (magnetic ?) in turn, we have got confused whether if this is a desirable solvent as the re crystallization to remove magnetite impurities, other than retaining pure products.
Any expertized opinions or literatures will be pretty much appreciated !
Since salens are tetradentate ligands occupying the tetragonal plane of an octahedral coordination, Fe (regardless if it is Fe(II) or Fe(III) will need to additional ligands in the axial position, or at least one. So, clearly pyridine is a good ligand for this job, but probably ethanol as well. This is at least true for the fluid solution. You might obtain a pure [Fe(salen)] complex in the crystalline state without further ligands, but there is no guarantee for this, since six ligands are usually more stable than four.
What is the oxidation state of Fe? What is the pure compound you desire?
Dear prof. Klein,
Thanks for your kind response!
We are trying to obtain pure 1) Fe(Salen) (II) and 2) mu-oxo-Fe(Salen)2 (III), which are monomer and dimer compounds, respectively. It will be very appreciated if you could provide me a comment or some references in this regards.
Best Regards,
- Badges
- Science topic
- Similar topics
- Biological Science
- Zoology
- Invertebrate Zoology
- Arthropods
- Insects