Lettre à l'éditeur
Résumé : THE hindrance of rotation about single bonds has recently attracted considerable interest1-3 because it greatly influences the physical and chemical properties of many organic molecules. The importance of rotations about single bonds in synthetic and biological macromolecules has also been emphasized and successful attempts have been made to derive the most stable conformations of linear macromolecules considering this effect4-10. © 1967 Nature Publishing Group.