Table 2. Average number of DPT ligand at pole positions per particle.
NP* | Diameter (nm) | Average ligand no. per NP† | DPTpole:DPTall | DPTpole per NP‡ |
---|---|---|---|---|
Au-DPT0.26DDT0.74 | 4.87±0.82 | 458 | 1: 15.5 | 7.6 (5.4–10.2) |
Au-DPT0.29DDT0.71 | 4.42±1.07 | 382 | 1: 22.1 | 5.1 (3.1–7.6) |
Au-DPT0.30DDT0.70 | 5.03±0.71 | 486 | 1: 16.8 | 8.6 (6.4–11.1) |
Au-DPT0.37DDT0.63 | 4.93±0.95 | 468 | 1: 24.2 | 7.2 (4.8–10.0) |
Au-DPT0.37DDT0.63 | 4.76±1.10 | 439 | 1: 23.3 | 7.0 (4.3–10.4) |
Au-DPT0.40DDT0.60 |
4.76±0.88 |
439 |
1: 25.7 |
6.9 (4.7–9.4) |
DDT, dodecanethiol; DPT, diphenyl thiol; NP, nanoparticle.
*Ligand composition measured by 1H NMR after decomposing the core.
†Calculated from quadratic function fit of reported data about ligand number per particle33.
‡Parentheses shows the range of DPT per particle after considering the particle size deviation. See supporting information Table 1 for details of calculation.