| by adding the appropriate metal salt | 4 | manner |
| from the hexacarbonyl precursor | 2 | other |
| according to the recommended protocol | 2 | other |
| complex → be → prepared | 27 |
| negative | neutral | positive |
| 0.036 | 0.887 | 0.077 |
| Raw frequency | 27 |
| Normalized frequency | 0.399 |
| Modifier score | 1.000 |
| Perplexity | 144.173 |