Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1325065 | Journal of Organometallic Chemistry | 2007 | 4 Pages |
The tetraruthenium cluster complex [Ru4(μ4-κ4-dmpu)(CO)10], H2dmpu = N,N′-bis(6-methylpyrid-2-yl)urea, has been prepared by treating [Ru3(CO)12] with H2dmpu in toluene at reflux temperature. An X-ray diffraction study has determined that this cluster has a butterfly metallic skeleton hold up by a doubly-deprotonated N,N′-bis(6-methylpyrid-2-yl)urea ligand (dmpu). This ligand has the pyridine N atoms attached to the wing-tip Ru atoms and the amido N atoms spanning Ru–Ru wing-edges, in such a way that the cluster has C2 symmetry. The donor atoms of doubly-deprotonated N,N′-dipyrid-2-ylureas seem to be appropriately arranged to hold butterfly tetranuclear clusters.
Graphical abstractThe butterfly tetraruthenium cluster 1 has been prepared by reaction of [Ru3(CO)12] with N,N′-bis(6-methylpyrid-2-yl)urea. Doubly-deprotonated N,N′-dipyrid-2-ylureas seem to be appropriate ligands to hold butterfly tetranuclear clusters.Figure optionsDownload full-size imageDownload as PowerPoint slide