Summary
β-Ketooxime [RC(O)C(NOH)R] (R = Me or Ph) ligands (HL) react with [Ru(PPh3)3Cl2] in refluxing EtOH to yield [Ru(PPh3)2(L)2] complexes. For R = Me, one isomer was obtained, while two isomers were isolated when R = Ph, due to a bulk effect. The complexes are diamagnetic and absorb intensely in the vis. region due to MLCT transitions. In MeCN and CH2Cl2 solution, RuII-RuIII oxidation occurs in the 0.69–0.92 V versus s.c.e. range. The oxidation potential depends on both the electronic nature of R and the stereochemistry of the complexes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. Bhattacharya, Polyhedron, 12, 235 (1993)
S. Bhattacharya, Polyhedron, 13, 451 (1994)
J. Chakravarty and S. Bhattacharya, Polyhedron, 13, 2671 (1994)
N. Ghatak and S. Bhattacharya, Polyhedron, 13, 2999 (1994)
N. Ghatak, J. Chakravarty and S. Bhattacharya, Transition Met. Chem., 20, 138 (1995)
N. Ghatak, J. Chakravarty and S. Bhattacharya, Polyhedron, 14, 3591 (1995)
J. Chakravarty and S. Bhattacharya, Proc. Indian Acad. Sci. (Chem. Sci.), 105 (1995), in press
J. Chakravarty and S. Bhattacharya, Polyhedron, in press.
K. R. Seddon, Coord. Chem. Rev., 35, 41 (1981); K. R. Seddon, Coord. Chem. Rev., 41, 79 (1982); K. R. Seddon, Coord. Chem. Rev., 67, 171 (1985)
K. Kalyansundaram, Coord. Chem. Rev., 46, 159 (1982)
E. A. Seddon and K. R. Seddon, The Chemistry of Ruthenium, Elsevier, Amsterdam, 1984
B. K. Ghosh and A. Chakravorty, Coord. Chem. Rev., 25, 239 (1989)
W. T. Wong, Coord. Chem. Rev., 131, 45 (1994).
A. Chakravorty, Coord. Chem. Rev., 13, 1 (1974)
C. L. Raston and A. H. White, J. Chem. Soc., Dalton Trans., 1915 (1976)
C. L. Raston, A. H. White and R. M. Golding, J. Chem. Soc., Dalton Trans., 329 (1977).
C. Bremard, C. Nowogrocki and S. Sueur, J. Chem. Soc., Dalton Trans., 2307 (1977)
A. R. Chakravarty and A. Chakravorty, Inorg. Nucl. Chem. Lett., 17, 97 (1981)
A. R. Chakravarty and A. Chakravorty, Inorg. Chem., 20, 275 (1981)
A. R. Chakravarty and A. Chakravorty, J. Chem. Soc., Dalton Trans., 615 (1982)
A. R. Chakravarty and A. Chakravorty, J. Chem. Soc., Dalton Trans., 1765 (1982).
T. A. Stephenson and G. Wilkinson, J. Inorg. Nucl. Chem., 28, 945 (1966).
A. I. Vogel, Practical Organic Chemistry, 3rd Edit., ELBS and Longman, London, 1965, Ch. 4, p. 720.
D. T. Sawyer and J. L. Roberts Jr, Experimental Electrochemistry for Chemists, Wiley, New York, 1974, p. 167.
M. Walter and L. Ramaley, Anal. Chem., 45, 165 (1973).
The conversion is not complete even after five days.
N. Bag, G. K. Lahiri and A. Chakravorty, J. Chem. Soc., Dalton Trans., 1557(1990).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ghatak, N., Bhattacharya, S. Synthesis, characterization and cyclic voltammetric studies of β-ketooximato ruthenium(II) complexes. Transition Met Chem 21, 158–161 (1996). https://doi.org/10.1007/BF00136547
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00136547