SOLID-PHASE REACTION OF ORGANOMETALLIC DERIVATIVES OF NITROPHENOLS, P-NITROTHIOPHENOL, AND P-NITROANILINE WITH BROMIDES, ACCORDING TO THE MOLECULAR-SPECTROSCOPY DATA

The effect of the visualization of the reaction of bromide anion with PhHg- and PPh3Au-derivatives of phthalein has been extended to the org anometallic derivatives (M = Hg, Au, Sn, Pb, Sb) of other classes of i ndicators: nitrophenols, nitrothiophenol, and 4'-nitrobenzenesulfonyla nilide. On the basis of the analysis of the electronic reflection spec tra and the IR spectra it has been found that the changes occurring up on the reaction of these compounds with bromides are determined by the formation of complexes and/or anions and are more pronounced in the l atter case. The character of the interaction depends on the dissociati on ability of the M-X bonds (which was determined earlier while studyi ng the reaction with DMSO), the ability to form complexes, and on the steric hindrance which has proved to be considerable in the solid-phas e reaction (with Br-).