An increment system for deuterium isotope effects on13C chemical shifts of methylated benzenes
作者:Stefan Berger、Bernd W. K. Diehl
DOI:10.1002/mrc.1260241210
日期:1986.12
The complete series of all possible benzenes bearing one deuterium atom and one to five methyl groups was synthesized. The deuteriumisotopeeffects on the carbon chemicalshifts of the aromatic and aliphatic carbon atoms were measured and shown to obey an empirical increment system. The isotopeeffects over one bond correlate with the C,H spin coupling constants.