ARNOLD B. THIGPEN, JR., AND RICHARD FUCHS' ... Department of Chemistry, University of Houston, Houston, Texas 77004 Received July S, 1968 ... A number of investigators have attempted to evaluate the factors involved in the transmission of substituent effects to a functional group.2 The relative transmission by various groups interposed between an aromatic ring and a functional group have been assessed by a comparison of Hammett p values for a given ...