Alkali salts of nitranilic and cyanochloranilic acids

Abstract

Series of novel alkali salts of nitranilic acid (3, 6-dinitro-2, 5-dihydroxyquinone) and cyanochloranilic acid (3-cyano-6-chloro-2, 5-dihydroxyquinone), and also of neutral cyanochloranilic acid dihydrate, were prepared and their structures were studied. The nitranilate dianion revealed a considerable conformational flexibility of nitro groups. Steric and inductive effects exerted by different substituents (nitro, cyano and chloro) and their influence on molecular geometry and crystal packing are discussed.