Abstract
The redox activity of four oximato-bridged strongly exchange-coupled copper(II) dimers is examined using cyclic voltammetry and coulometry in acetonitrile solution. A well-defined quasi-reversible couple corresponding to the process Cu2 II + e⇌ CuIICuI is observed in all cases. The couple corresponding to the next stage of reduction CuII CuII + e ⇌Cu2 I is identified in two complexes. TheE 0 298 values for the various couples are reported with rationalisation of observed trends in terms of exchange interaction and ligand 10 Dq. The circumstances which may lead to superposition of the two successive one electron couples in copper(II) dimers are discussed.
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References
Ablov A V, Belichuk N I and Pereligina M S 1972Runs. J. Inorg. Chem. 17 534
Addison A W 1976Inorg. Nucl. Chem. Lett. 12 899
Baral S and Chakravorty A 1977Proc. Indian Acad. Sci. A86 45
Bertrand J A, Smith J H and Eller P G 1974Inorg. Chem. 13 1949
Farver O, Goldberg M, Wherland S and Pecht I 1978Proc. Natl. Acad. Sci. 75 5245
Fee J A 1975Struct. Bonding (Berlin) 23 1
Fenton D E and Lintvedt R L 1978J. Am. Chem. Soc. 100 6367
Gagne R R, Koval C A and Smith T J 1977J. Am. Chem. Soc. 99 8367
Gagne R R, Kreh R P and Dodge J A 1979J. Am. Chem. Soc. 101 6917
Hasty E H, Wilson L J and Hendrickson D N 1978Inorg. Chem. 17 1834
Mohanty J G and Chakravorty A 1976Inorg. Chem. 15 2912
Mohanty J G and Chakravorty A 1977Inorg. Chem. 16 1561
Patterson G H and Holm R H 1975Bioinorg. Chem. 4 257
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Datta, D., Chakravorty, A. Redox pattern in a group of copper(II) dimers : comments on equipotential Cu2 II-CuIICuI and CuIICuICu2 II couples. Proc. Indian Acad. Sci. (Chem. Sci.) 90, 1–4 (1981). https://doi.org/10.1007/BF02841321
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DOI: https://doi.org/10.1007/BF02841321