Aspects of conformation in ring-substituted 2,4,6-trinitroanilines deduced from absorption spectra
Abstract
From the relative absorption intensities of two characteristic bands in the ultraviolet spectra of 2,4,6-trinitroaniline and its derivatives, it is possible to estimate angles of twist from planarity of the 2-, 4-, and 6-nitro-substituents. In at least one instance, such estimates correspond closely to angles observed in a total crystal structure determination. Other aspects of the spectra are also discussed.