Table 1. 31P NMR Chemical Shifts (ppm) of Complexes of the Type 2Ma (M = Ni, Pd,14 Pt) in C6D6a.
M |
anti |
syn |
||
---|---|---|---|---|
PMe3 | μ-2-C6F4PPh2 | PMe3 | μ-2-C6F4PPh2 | |
Ni | –15.0 | –3.6 | –15.0 | –9.4 |
Pd | –19.1 | –2.9 | –18.7 | –8.4 |
Pt | [−24.4 (2700)b] | [−5.4 (160)b] | –24.6 (2700) | –11.1 (90) |
JPt,P (Hz) coupling constants are given in brackets.
31P NMR shifts of the anti-isomer were observed in CDCl3 solution.