Bromination and Nitration of Some Mixed Ligand Acetylacetonatocobalt(iii) Complexes

Four kinds of mixed ligand acetylacetonatocobalt(III) complexes ((NH3)4-, (en)2-, α-trien-, and β-trien-complexes) have been substituted with bromine, and five (the above four and fac(N)-i-DTMA-complex) have been substituted with nitro group at the central methine of the ligand. The brominated and the nitrated complexes have been isolated and identified by means of the electronic absorption spectra and the NMR spectra.