二氟化膦配位化合物的^（19）F－NMR光谱化学位移规律

SOME REGULARITIES IN ￣(19)F-NMR CHEMICAL SHIFT FOR COORDINATION COMPOUNDS OF PHOSPHINE DIFLUORIDE

本文通过实验和已有的报道，综合了一批Ｎｉ（０）、Ｍｏ（０）、Ａｕ（Ⅰ）、Ｃｕ（Ⅰ）与二氟化膦（ＲＰＦ＿２）形成的配位化合物的~１９Ｆ－ＮＭＲ光谱数据；讨论了此类配合物的~１９Ｆ－ＮＭＲ化学位移的特点和受影响的主要因素；得到了在该类配合物中Ｆ化学位移的改变值△δＦ（＝δ配合物－δ配体）的经验公式。

In this paper, a number of ￣(19)F-NMR spectroscopic data for coordination compounds formed by Ni (0),Mo (0),An (Ⅰ),Cu (Ⅰ) with phosphine difluoride (RPF_2) ligands are reported. The characteristics of ￣(19)F chemical shift and the main factors influencing the chemical shift are discussed. An empirical formula is proposed for ￣(19)F chemical shift variation