title: Molecular connectivity and steric parameters.
abstract: The possible relationship between molecular connectivity indexes, mchi, and Es, a thermodynamically derived parameter used to estimate steric effects in organic reactions and sometimes used in biological structure-activity relationships, was investigated. The extended chi terms, 2chi, 3chi, and 4chi, were correlated significantly to Es (r = 0.961). Aralkyl esters deviated from the correlations, possibly due to intramolecular interactions.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002627:Chemistry, Physical; D004952:Esters; D006868:Hydrolysis; D008956:Models, Chemical; D008968:Molecular Conformation; D013329:Structure-Activity Relationship
chemical_list: D004952:Esters