1. Reactions of Unsymmetrically Substituted N-Heterocyclic Carbenes with Ru3(CO)12.
- Author
-
Congying Zhang, Bin Li, Haibin Song, Shansheng Xu, and Baiquan Wang
- Subjects
- *
CARBENES , *CHEMICAL reactions , *LIGANDS (Chemistry) , *RUTHENIUM compounds , *METAL complexes , *CHEMICAL bonds , *MOLECULAR structure , *X-ray diffraction , *ACTIVATION (Chemistry) - Abstract
Reactions of a series of unsymmetrically substituted N-heterocyclic carbene ligands with Ru3(CO)12afforded a variety of mononuclear (1, 2), trinuclear (3, 4, 5, and 5â²), and tetranuclear (6, 7) ruthenium complexes via intramolecular ruthenium-mediated sp2and sp3CâH bond activations. Complexes 6and 7include an octahedral cluster skeleton consisting of four ruthenium atoms and two metalated carbon atoms. The formation of this type of ruthenium clusters is proposed to involve the initial CâC double-bond migration and subsequent sp2CâH bond activations. All new complexes were fully characterized, and the molecular structures of 1, 2, 5, 6, and 7were determined by X-ray diffraction analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF