195Pt and 1H NMR has been used to show that addition of chlorine and bromine to [Pt(CN)4]2_ in presence of perchloric acid in water results in cyanide and water scrambling with formation of eleven complexes of the type [Pt(CN)4-nCl(H2O)n+1](n-1)+ (n=0, 1, 2, 3, 4). Addition of NBu4OH ...

The effect of copper and its compounds on halogenation dehalogenation aromatic will be discussed in the proposed article. Cu oxidized to appropriate halides is an effective catalyst not only for synthesis halogenated benzenes or their derivatives as desired organic fine chemicals, but also undesirable formation thermodynamically stable very toxic polychlorinated polybrominated such biphenyls, d...