Table 2. Selected bond distances in Å, angles in ° and 31P NMR chemical shifts in ppm for P(BIM), [P(BIMEt3)][OTf]3 and [PF2(BIMEt3)][OTf]3.
| P(BIM) | [P(BIMEt3)]3+ | [PF2(BIMEt3)]3+ | |
| P–N2 | 1.7281(11) | 1.7279(16) | 1.791(13) |
| 1.7159(11) | 1.7352(16) | 1.798(13) | |
| 1.7201(11) | 1.7364(16) | 1.773(13) | |
| 1.7246(12) | |||
| 1.7137(11) | |||
| 1.7242(12) | |||
| P–N1 | 2.912(2) | 2.866(2) | 1.893(13) |
| 2.938(2) | |||
| P–OTf | — | 3.591(2) | — |
| 3.922(2) | |||
| 3.584(2) | |||
| P–F | — | — | 1.604(9) |
| 1.577(9) | |||
| 31P δ | 44.7 (s) | 56.1 (s) | –127.8 (dd) |
| °ΣP | 319.48 | 320.2 | — |
| 317.75 | |||
| °ΣN1 | 353.77 | 350.5 | 328.0 |
| 355.85 |