51. Ruthenium bis(phosphinite) pincer complexes
- Author
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D. M. Ivanov, Pavel V. Petrovskii, Alexander V. Polezhaev, S. A. Kuklin, Alexander F. Smol'yakov, Avthandil A. Koridze, Fedor M. Dolgushin, Alexander S. Peregudov, and Mariam G. Ezernitskaya
- Subjects
Denticity ,Phosphinite ,Ligand ,chemistry.chemical_element ,General Chemistry ,Medicinal chemistry ,Ruthenium ,Adduct ,Pincer movement ,chemistry.chemical_compound ,chemistry ,Trifluoroacetic acid ,Organic chemistry ,Carbon monoxide - Abstract
Resorcinol-based ruthenium bis(phosphinite) complexes were synthesized. Complexes RuCl(CO)[2,6-(But 2PO)2C6H3] (9) and RuH(CO)[2,6-(But 2PO)2C6H3] (10) were obtained by cyclometallation of 1,3-(But 2PO)2C6H3 with RuCl2(DMSO)4 in 2-methoxyethanol in the presence of Hunig’s base. The interconversion of complexes 9 and 10 was studied. The addition of carbon monoxide to complexes 9 and 10 yielded 18e adducts, RuCl(CO)2[2,6-(But 2PO)2C6H3] (11) and RuH(CO)2[2,6-(But 2PO)2C6H3] (12), respectively. In the case of complex 9, this reaction is reversible. Reaction of complex 10 with trifluoroacetic acid resulted in complex Ru(CF3COO)(CO)[2,6-(But 2PO)2C6H3] (13), which reacted with carbon monoxide to give complex Ru(CF3COO)(CO)2[2,6-(But 2PO)2C6H3] (14). Based on the IR spectral data, the TFA ligand in complexes 13 and 14 is bound in a bi- and monodentate fashion, respectively. The structure of compound 9 was determined by X-ray diffraction analysis.
- Published
- 2009
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