6533b7d3fe1ef96bd12600a5
RESEARCH PRODUCT
New CpCrCl2(PR3) complexes: physical properties and reduction chemistry
Rinaldo PoliSundeep P. MattamanaMatthieu Bender-gresseEdmond Collangesubject
Inorganic chemistry010402 general chemistry01 natural sciencesRedoxChloridelaw.inventionInorganic Chemistrychemistry.chemical_compoundCpCrCl2lawMaterials ChemistrymedicineRedistribution (chemistry)[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistryElectron paramagnetic resonance010405 organic chemistryChemistryreduction chemistryCurie-Weiss behaviorChromocene0104 chemical sciencesCrystallographyUnpaired electronProton NMRPhosphinemedicine.drugdescription
Abstract Compounds CpCrCl2L ( L = PMe 2 Ph , 1 , PMePh 2 , 2 ; PPh 3 , 3 ) have been prepared. Their magnetic moment is in accord with the presence of three unpaired electron and a variable temperature 1H NMR investigation of 1 shows Curie-Weiss behavior. The 1H NMR, EPR and UV-visible spectra are in agreement with those of other previously reported compounds of the same family. An electrochemical investigation shows the accessibility of an irreversible reduction process. A parallel sodium reduction investigation of complexes CpCrCl2L (L = PMe3 and η1-dppe) suggests tjat the reduction process is followed by immediate chloride loss, and then by a ligand redistribution process to afford chromocene and unstable inorganic phosphine complexes of Cr(II).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-01-01 |