209673-90-5Relevant academic research and scientific papers
New CpCrCl2(PR3) complexes: Physical properties and reduction chemistry
Bender-Gresse, Matthieu,Collange, Edmond,Poli, Rinaldo,Mattamana, Sundeep
, p. 1115 - 1119 (1998)
Compounds CpCrCl2L (L = PMe2Ph, 1; PMePh2, 2; PPh3, 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 that 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).
