Asymmetric ruthenium(II) complexes of a flexible aminomethylpyridine derivative exhibit diastereotopic ligand methylene protons, as measured by NMR spectroscopy; binding of external anions renders these protons equivalent possibly by increasing dynamically averaged symmetry; the amount of anion needed to raise average symmetry correlates to the anion binding constant.
通过核磁共振波谱测量,柔性
氨甲基
吡啶衍生物的不对称
钌(II)配合物表现出非对映
配体亚甲基质子;外部阴离子的结合可能通过增加动态平均对称性使这些质子等效;提高平均对称性所需的阴离子量与阴离子结合常数相关。