Solid-phase reaction of organometallic derivatives of nitrophenols,P-nitrothiophenol,andP-nitroaniline with bromides,according to the molecular spectroscopy data

The effect of the visualization of the reaction of bromide anion with PhHg- and PPh₃Auderivatives of phthalein has been extended to the organometallic derivatives (M=Hg, Au, Sn, Pb, Sb) of other classes of indicators: nitrophenols, nitrothiophenol, and 4-nitrobenzenesulfonylanilide. On the basis of the analysis of the electronic reflection spectra and the IR spectra it has been found that the changes occurring upon the reaction of these compounds with bromides are determined by the formation of complexes and/or anions and are more pronounced in the latter case. The character of the interaction depends on the dissociation ability of the M-X bonds (which was determined earlier while studying the reaction with DMSO), the ability to form complexes, and on the steric hindrance which has proved to be considerable in the solid-phase reaction (with Br^–).Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1974–1977, November, 1993.