| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| iron pentacarbonyl structure | 0.38 | 0.4 | 6920 | 66 | 28 |
| iron | 1.67 | 0.5 | 805 | 89 | 4 |
| pentacarbonyl | 0.92 | 0.8 | 9639 | 45 | 13 |
| structure | 0.51 | 0.5 | 1651 | 28 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| iron pentacarbonyl structure | 0.79 | 0.6 | 2679 | 38 |
