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用1 H ,1 3CNMR和多种二维核磁共振谱表征了本系列化合物的结构 ,完成了1 H和1 3CNMR谱带的归属 ,测定了氟原子对各质子和碳原子的偶合常数 ,探讨了影响偶合常数大小的因素。
The structures of the compounds were characterized by 1 H, 13CNMR and many kinds of two-dimensional nuclear magnetic resonance spectroscopy, and the assignments of 1 H and 13CNMR bands were completed. The coupling constants of fluorine atoms to protons and carbon atoms were determined. Factors that influence the size of the coupling constant.