2,2-Dinitroethene-1,1-Diamine

2,2-Dinitroethene-1,1-diamine (FOX-7) is a compound synthesized in 1998 with a simple structure but very unusual properties. One part of the molecule bears two geminal electron-withdrawing nitro groups as a strong oxidation center and the opposite part is represented by two electron-donating amino groups. This combination creates a so called push-pull effect of electrons. The electron distribution is unbalanced enabling intramolecular electron transfer reactions, what is typical for energetic material. Many studies appeared during last decade dealing with synthesis, physical properties, solubility, spectroscopic properties, acidobasic and redox properties, X-ray structure studies, reactivity, thermochemical properties, analytical reactions, quantum chemical calculations, energetic properties etc. The presented review article gives an overview of the papers devoted to the title compound.