REAKTIONEN AN KOMPLEXGEBUNDENEN LIGANDED. XXXVI. SYNTHESE UND OXIDATIONSVERHALTEN VON M(CO)5-KOMPLEXEN (M = Cr, Mo, W) MIT AMIN- UND BENZOCHINONDIIMIN-LIGANDEN

Article abstract of DOI:10.1016/0022-328X(84)80723-8

The oxidation of yellow Cr(CO)5NH2R complexes (NH2R = aniline, m-toluidine, 3,5-xylidine, m-anisidine) with Pbac4 gives deep blue to deep purple coloured compounds, which have been identified as the respective complexes.Oxidation of the p-phenylenediamine complex yields <(OC)5CrHN=C6H5=NHCr(CO)5>, which is also deep blue.The binuclear blue complex <2HN=C6H4=NC6H5> is obtained by treating Cr(CO)5THF with the free ligand in THF/hexane; it dissociates rapidly in acetone to form and Cr(CO)5.Analogous Mo(CO)5 and W(CO)5 complexes could not be obtained.The oxidation of W(CO)5(m-anisidine)> by I2 yields 2.All the compounds were characterized by spectroscopic methods as well as by elemental analysis.