Issue 21, 1996

Ruthenium tris(pyrazolyl)borate complexes. Formation and characterization of acetone, dimethylformamide and vinylidene complexes containing N,N-donor co-ligands

Abstract

Chloride abstraction from [Ru{HB(pz)3}(tmen)Cl](pz = pyrazolyl, tmen = Me2NCH2CH2NMe2) with NaBPh4 in the solvents acetone and dimethylformamide led to the formation of the respective cationic [Ru{HB(pz)3}(tmen)(solv)]+ complexes. In the presence of phenylacetylene, these are easily transformed into the first example of a ruthenium HB(pz)3 vinylidene complex. Extended-Hückel molecular-orbital calculations have been performed to establish the nature of the bonding involved. From [Ru{HB(pz)3}(py)2Cl](py = pyridine) the corresponding vinylidene complex could be prepared in the same way, although the intermediate solvent complexes could not be isolated. Selected crystal structures were determined.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1996, 4071-4076

Ruthenium tris(pyrazolyl)borate complexes. Formation and characterization of acetone, dimethylformamide and vinylidene complexes containing N,N-donor co-ligands

C. Gemel, P. Wiede, K. Mereiter, V. N. Sapunov, R. Schmid and K. Kirchner, J. Chem. Soc., Dalton Trans., 1996, 4071 DOI: 10.1039/DT9960004071

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