Abstract
A complex of bis(hexafluoroacetylacetonato)copper(II) with a stable acyclic nitroxide (tert-butyl)(3-keto-2-methylbutyl-2)nitroxyl oxime (L), Cu(hfac)2L, has been synthesized. The structure of the complex was studied by X-ray diffraction analysis. The compound has a molecular structure with chelate coordination of the nitroxide. The tetragonally distorted octahedral environment of the copper(II) ion is formed by the oxygen atoms of the hfac anions and by the nitrogen and oxygen atoms of the oxime and nitroxyl groups of L, respectively. The nitroxyl group lies in the equatorial plane of the octahedron (dCu−O=1.907 Å). This type of N−O coordination leads to strong antiferromagnetic exchange interactions between the unpaired electrons of the copper(II) ion and the coordinated nitroxyl group and, as a consequence, to diamagnetism of Cu(hfac)2L.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Caneschi, D. Gatteschi, and P. Rey,Prog. Inorg. Chem.,89, 331–350 (1991).
V. I. Ovcharenko, in:Synthetic Chemistry of Stable Imidazoline Nitroxides, CRC Press, Boca Raton, FL (1994), pp. 159–219.
S. V. Larionov,Zh. Strukt. Khim.,23, No. 4, 127–147 (1982).
S. V. Larionov, in.Imidazoline Nitroxides, CRC Press, Boca Raton, FL (1989), pp. 82–113.
R. A. Zelonka and M. C. Baird,J. Chem. Soc., Chem. Comm., 1488 (1970).
R. A. Zelonka and M. C. Baird,J. Am. Chem. Soc.,93, 6066–6070 (1971).
C. Benelli, D. Gatteschi, and C. Zanchini,Inorg. Chem.,23, 798–800 (1984).
W. Beck,Inorg. Chim. Acta,99, L33 (1985).
W. Beck, K. Schmidtner, and H. Keller,Chem. Ber.,100, 503 (1967).
D. G. Brown, T. Maier, and R. S. Drago,Inorg. Chem.,10, 2084 (1971)
J. A. Bertrand and R. I. Kaplan, ——ibid., 489 (1965).
L. B. Volodarskii, I. A. Grigoriev, S. A. Dikanov, et al.,Imidazoline Nitroxides [in Russian], Nauka, Novosibirsk (1988), p. 90.
G. M. Sheldrick, in:SHELX-86, Crystallographic Computing 3, G. M. Sheldrick, C. Kruger, and R. Goddard, Oxford (eds.) University Press, London (1987), pp. 175–189.
N. V. Pervukhina, N. V. Podberezskaya, and G. V. RomanenkoZh. Strukt. Khim.,35, No. 3, 103–132 (1994).
L. C. Porter and R. J. Doedens,Acta Crystallogr.,C41, 838–840 (1985).
H. F. Allen, O. Kennard, and D. G. Watson,J. Chem. Soc., Perkin Trans. II, S1–S19 (1987).
R. P. Shibaeva,Zh. Strukt. Khim.,16, No. 2, 330–348 (1975).
L. M. Shkolnikova and M. A. Porai-Koshits,Itogi Nauki Tekh., Ser. Kristallokhim.,16, 117–125 (1982).
J. Laugier, D. Gatteschi, P. Rey, and C. Zanchini,Inorg. Chem.,26, 938–943 (1987).
A. Caneschi, D. Gatteschi, R. Sessoli, et al., ——ibid.,27, 2390–2392 (1988).
Additional information
International Tomography Center, Siberian Branch, Russian Academy of Sciences. Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences. Translated fromZhurnal Struktumoi Khimii, Vol. 36, No. 5. pp. 900–904, September–October, 1995.
Translated by L. Smolina
Rights and permissions
About this article
Cite this article
Burdukov, A.B., Pervukhina, N.V. & Ovcharenko, V.I. Complex of bis(hexafluoroacetylacetonato)copper(II) with a stable acyclic nitroxide (tert-butyl)(3-keto-2-methylbutyl-2) nitroxyl oxime. J Struct Chem 36, 818–822 (1995). https://doi.org/10.1007/BF02579675
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02579675