Table 2. Selected Bond Lengths (Å) and Angles (°) for AM Interactions with the C6-Rings in 1-AM·(Et2O) (AM = Li, Na, K, Rb) and 1-Cs·(THF)2.
| AM = Li | AM = Na | AM = K | AM = Rb | AM = Cs | |
|---|---|---|---|---|---|
| Ct(Ph) | 2.9477(8) | 2.9722(7) | 3.0416(8) | 3.356(1) | |
| Ct(Dipp) | 2.197(3) | 2.7144(7) | 2.9135(6) | 3.0078(7) | 3.2852(9) |
| Ct···Ct (distance) | 5.0335(9) | 5.3067(8) | 5.5037(9) | 6.0513(9) | |
| C6···C6 (angle)a | 43.46(5) | 45.21(4) | 45.50(5) | 51.18(6) | |
| Ct···AM···Ct (angle) | 125.44(2) | 128.74(2) | 130.995(2) | 131.35(2) |
a
Plane normal-to-plane normal angle for mean square planes defined by C6-rings.