 |
 |
| A tetranuclear copper cluster | A dodecanuclear copper cluster |
Multinuclear transition metal clusters
Copper phosphonate clusters in presence of ancillary ligands
|
|
|
| A tetranuclear copper cluster | A dodecanuclear copper cluster |
Zinc phosphonate clusters in presence of ancillary ligands
 |
 |
| A trinuclear zinc cluster | A hexanuclear zinc cluster |