Table 5.
Comparison of calculated and observed radii of copper(I) amide aggregates in [D6]benzene solutions determined using 1H DOSY NMR. Percentage differences from expected rcalc values were calculated for robs values. Three robs values are given as there were three distinct sets of resonances with different diffusion coefficients for complexes 3 and 4.
| Complex | rcalc [Å] | robs at 0.05 m [Å] | robs at 0.20 m [Å] | |||
|---|---|---|---|---|---|---|
| Pentamer | 6.04 | 5.88 (−2.7 %) | 5.80 (−4.0 %) | |||
| 3 | Tetramer | 5.65 | 5.65 (+0.1 %) | 5.68 (+0.7 %) | ||
| Trimer | 5.15 | 5.45 (+6.0 %) | 5.38 (+4.4 %) | |||
| Pentamer | 6.37 | 6.16 (−3.3 %) | 6.16 (−3.4 %) | |||
| 4 | Tetramer | 5.89 | 5.89 (+0.0 %) | 5.89 (+0.0 %) | ||
| Trimer | 5.38 | 5.55 (+3.2 %) | 5.65 (+5.2 %) |