title: [Application of Verloop parameters. Comparison with other steric parameters and problems of choice of parameter].
abstract: Verloop's steric parameters. L, B1, B2, B3, B4, were tested in five groups of molecules, generally successfully, These were compared with classical steric parameters: indices of molecular connectivity, Taft's Es parameter, Van der Waals radii and molecular refraction. Some rules have been developed to decide which parameters to use for various types of substituent.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D008968:Molecular Conformation; D013329:Structure-Activity Relationship
vernacular_title: Application des paramètres de Verloop. Comparaison avec les autres paramétres steriques, problemes de leur choix.