Table 2.
Diffussion coefficients (D, m2·s−1) for solutions of TMSS (1mM) and TMSO (1mM) at various concentrations (C, mM) of compounds 1a-c, 2b and 3b at 295 K.
| Entry | Compound (solvent) | C | 1010·Ds | DTMSS/Ds | DTMSO/DTMSS | Δrs |
|---|---|---|---|---|---|---|
| 1 | 1a (CDCl3) | 11.7 | 6.957 | 1.626 | 0.951 | 1.00 |
| 2 | 1a (CDCl3) | 63.0 | 5.180 | 2.135 | 0.955 | 1.31 |
| 3 | 1a (CDCl3:C6D6)a | 5.31 | 6.685 | 1.627 | 0.931 | 1.00 |
| 4 | 1a (CDCl3:C6D6)a | 65.5 | 3.676 | 2.889 | 0.937 | 1.77 |
| 5 | 1a (methanol-d4) | 14.5 | 6.966 | 1.385 | 0.939 | 1.00 |
| 6 | 1a (methanol-d4) | 76.5 | 6.280 | 1.475 | 0.935 | 1.06 |
| 7 | 1a (acetone-d6) | 7.75 | 11.67 | 1.584 | 0.904 | 1.00 |
| 8 | 1a (acetone-d6) | 64.9 | 10.02 | 1.704 | 0.913 | 1.07 |
| 9 | 1c (acetone-d6) | 3.25 | 10.59 | 1.852 | 0.903 | 1.00 |
| 10 | 1c (acetone-d6) | 62.1 | 10.42 | 1.882 | 0.903 | 1.02 |
| 11 | 1b (CDCl3) | 6.92 | 7.894 | 1.599 | 0.930 | 1.19 |
| 12 | 1b (CDCl3) | 30.7 | 4.442 | 2.413 | 0.945 | 1.79 |
| 13 | 1b (CDCl3) | 62.5 | 3.362 | 3.147 | 0.931 | 2.34 |
| 14 | 1b·PF6 (CDCl3) | 6.93 | 5.473 | 1.957 | 0.949 | 1.45 |
| 15 | 1b·PF6 (CDCl3) | 52.3 | 4.346 | 2.444 | 0.948 | 1.82 |
| 16 | 2b (CDCl3) | 7.38 | 5.739 | 1.922 | 0.948 | 1.43 |
| 17 | 2b (CDCl3) | 81.2 | 4.830 | 2.284 | 0.931 | 1.70 |
| 18 | 3b (CDCl3) | 5.82 | 8.542 | 1.345 | 0.928 | 1.00 |
| 19 | 3b (CDCl3) | 87.1 | 7.341 | 1.453 | 0.929 | 1.08 |
a
CDCl3:C6D6 = 8:2