Table 1. ADMET Polymerization of M1–M3a.
| runa | monomer (μmol) | cat. | cat./mol % | solvent (mL) | temp/°C | time/h | yieldb/% | Mnc/g·mol–1 | Mw/Mnc |
|---|---|---|---|---|---|---|---|---|---|
| 1d | M1 (90.5) | Mo | 5.0 | toluene (0.72) | 25 | 6 | 99 | 16000 | 1.79 |
| 2d | M1 (90.5) | Mo | 5.0 | toluene (0.72) | 25 | 8 | 91 | 20800 | 1.73 |
| 3 | M1 (90.5) | Mo | 2.5 | toluene (0.72) | 25 | 6 | 90 | 25100 | 1.43 |
| 4d | M1 (90.5) | Mo | 1.0 | toluene (0.72) | 25 | 6 | 88 | 34400 | 1.49 |
| 5 | M1 (90.5) | Mo | 1.0 | toluene (0.72) | 25 | 6 | 84 | 31100 | 1.89 |
| 6 | M1 (272) | Mo | 1.0 | toluene (0.72) | 25 | 6 | 88 | 46100 | 2.08 |
| 7d | M1 (272) | Mo | 1.0 | toluene (0.72) | 25 | 6 | 91 | 46100 | 1.84 |
| 8 | M1 (272) | Mo | 0.5 | toluene (0.72) | 25 | 3 | 93 | 22600 | 1.93 |
| 9 | M1 (272) | Mo | 0.5 | toluene (0.72) | 25 | 6 | 90 | 48700 | 2.04 |
| 10 | M1 (272) | Mo | 0.5 | toluene (0.72) | 25 | 6 | 84 | 47500 | 1.78 |
| 11 | M1 (543) | Mo | 0.5 | toluene (1.0) | 25 | 6 | 90 | 44500 | 2.23 |
| 12 | M1 (543) | Mo | 0.5 | toluene (1.0) | 25 | 6 | 95 | 44400 | 1.92 |
| 13 | M1 (543) | Mo | 0.5 | toluene (1.0) | 25 | 6 | 91 | 49400 | 2.47 |
| 14e | M2 (272) | Mo | 1.0 | toluene (0.72) | 25 | 6 | 87 | 34800 | 1.87 |
| 15 | M3 (272) | Mo | 1.0 | toluene (0.72) | 25 | 6 | 99 | 67200 | 2.27 |
| 16 | M1 (624) | HG2 | 1.0 | toluene (0.14) | 50 | 5 | 71 | 7100 | 1.58 |
| 17 | M1 (624) | HG2 | 1.0 | toluene (0.14) | 50 | 12 | 86 | 8700 | 1.39 |
| 18 | M1 (624) | HG2 | 1.0 | toluene (0.14) | 50 | 24 | 88 | 14000 | 1.42 |
| 19f | M1 (624) | HG2 | 1.0 | CHCl3 (0.14) | 50 | 24 | 88 | 11000 | 1.21 |
| 20g | M1 (624) | HG2 | 1.0 | [Bmim]PF6 (0.14) | 50 | 16 | 89 | 32200 | 1.87 |
| 21g | M1 (624) | HG2 | 1.0 | [Hmim]TFSI (0.14) | 50 | 16 | 93 | 39200 | 1.95 |
| 22g | M2 (624) | HG2 | 1.0 | [Hmim]TFSI (0.14) | 50 | 16 | 92 | 26000 | 1.95 |
Conditions: (runs 1–15) Mo(CHCMe2Ph)(N-2,6-Me2C6H3)[OC(CH3)(CF3)2]2 (Mo), toluene 0.72 or 1.0 mL, 25 °C, quenched by benzaldehyde (for termination through Wittig-type cleavage37,38) and (runs 16–18) HG2, toluene 0.14 mL, 50 °C (optimized conditions in ref (31)).
Isolated yield (as MeOH insoluble fraction).
GPC data in THF (at 40 °C) vs polystyrene standards.
4-Me3SiOC6H3CHO (runs 1, 24) or ferrocenecarboxaldehyde (run 7) was used instead of benzaldehyde.
Ethylene removal every 5 min (instead of 10 min) at the initial 30 min, see SI.
Cited from ref (31).
Cited from ref (15). RuCl2(IMesH2)(CH-2-OiPr-C6H4) [HG2; IMesH2 = 1,3-bis(2,4,6-trimethylphenyl) imidazolin-2-ylidene, Cy = cyclohexyl]. [Bmim]PF6: 1-n-butyl-3-methyl imidazolium hexafluorophosphate; [Hmim]TFSI: 1-n-hexyl-3-methyl imidazolium bis(trifluoromethanesulfonyl) imide.