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 deuterium isotope effects on the carbon chemical shifts of the aromatic and aliphatic carbon atoms were measured and shown to obey an empirical increment system. The isotope effects over one bond correlate with the C,H spin coupling constants.
合成了带有一个氘原子和一到五个甲基的所有可能的苯的完整系列。测量了氘同位素对芳香族和脂肪族碳原子的碳化学位移的影响,并显示出遵循经验增量系统。一个键上的同位素效应与 C,H 自旋耦合常数相关。