| Pt complexes (μmol of Pt atom) | Reaction time (h) | H2 (μmol) | TONb |
| TMA-P-Pt (0.5) | 1 5 | 58.7 189.4 | 235 758 |
| TMA-Si-Pt (0.5) | 1 5 | 34.3 130.4 | 137 522 |
| TMA-Ge-Pt (0.5) | 1 5 | 57.0 162.9 | 228 651 |
| TMA-P-Pt (1.0) | 1 5 | 84.6 252.6 | 167 505 |
| TMA-Si-Pt (1.0) | 1 5 | 56.0 166.2 | 112 332 |
| TMA-Ge-Pt (1.0) | 1 5 | 76.7 193.8 | 153 388 |
| TMA-P-Pt (2.0) | 1 5 | 90.2 301.4 | 90 301 |
| TMA-Si-Pt (2.0) | 1 5 | 86.1 207.5 | 86 208 |
| TMA-Ge-Pt (2.0) | 1 5 | 77.6 230.6 | 78 231 |
| TMA-P-Pt (2.0)c | 1 5 | 50.4 125.0 | 50 125 |
| TMA-Si-Pt (2.0)c | 1 5 | 35.1 79.3 | 35 79 |
| TMA-Ge-Pt (2.0)c | 1 5 | 47.9 102.4 | 48 102 |