In this paper, the relationship between structure and reactivity of nitro - aliphatic acids has been discussed via the stereo effect and electronic structure analysis of nitro-aliphatic acids,respectively. In the nitro-capric acid, a potential energy plot for rotation about the α- C1 - C2 bond is 90.4286 kcal/mol. The electric charge of nitro - aliphatic acid is distributed and expounded the relation between structure and reactivity of nitro- aliphatic acids :Some...