Crystals of dinitrobromobenzene C6H3Br(N02)2 and an isomorphous 50% mixture of C6H3Br(NO2)2 and C6H3Cl(NO2)2

Abstract

The named crystals were given to me for crystallographic study by Professor N.S. Kurnakov, who obtained them for the first time. The author carried out: goniometric studies, optical studies and studies of crystal isomorphism. See the article for results and pictures.