Substituent effects on13C and15N chemical shifts in triazenes studied by principal components multivariate data analysis
作者:W. J. Dunn、C. Lins、G. Kumar、T. Manimaran、S. Grigoras、U. Edlund、S. Wold
DOI:10.1002/omr.1270210710
日期:1983.7
AbstractPrincipal components analysis was applied to the 13C and 15N chemical shift data on a series of fifteen 1‐(para‐substituted‐phenyl)‐3‐acetyl‐3‐methyltriazenes. It was found that the halogen‐substituted triazenes formed a class, based on substituent effects, which was different from the remaining eleven triazenes. A one‐component model described the halogen class, whereas a two‐component model was necessary for a description of the second class. In the second class, substituents tended to cluster to form groups depending on their electronic character.