Structural elucidation of bipyridine helicate complexes and their precursors by NMR spectroscopy
作者:Rita Annunziata、Maurizio Benaglia、Antonino Famulari、Laura Raimondi
DOI:10.1002/mrc.828
日期:2001.6
1H and 13C NMR assignments of bipyridine helicate complexes and their precursor ligands were achieved using gradient‐based homo‐ and hetero‐correlated 2D experiments. The observed trends in 1H and 13C chemical shift variations [Δδ(H) and Δδ(C)], on passing from the ligands to the complexes, are accounted for on the basis of MO evaluation of atomic charges. Copyright © 2001 John Wiley & Sons, Ltd.
联吡啶螺旋配合物及其前体配体的 1H 和 13C NMR 归属是使用基于梯度的同相关和异相关 2D 实验实现的。观察到的 1H 和 13C 化学位移变化 [Δδ(H) 和 Δδ(C)] 从配体传递到配合物时的趋势是基于对原子电荷的 MO 评估来解释的。版权所有 © 2001 John Wiley & Sons, Ltd.