Abstract
Synthesis and X-ray diffraction study of trans-bis-(2-(methylimino)-4-pentanonato)Cu(II), which is methyl-substituted ketoiminate, is reported. Crystal data for CuN2O2C12H20: a = 7.374(1) Å, b = 9.171(1) Å, c = 10.823(2) Å; α = 96.51(1)°, β = 106.12(1)°, γ = 96.81(1)°, space group P \(\bar 1\), Z = 2, d calc = 1.38 g/cm3, d exp = 1.37 g/cm3, R = 0.037. The structure is molecular and consists of isolated trans-complexes. The coordination polyhedron of the copper atom is intermediate between the square and tetrahedron; the average distances are Cu-O 1.91 Å and Cu-N 1.95 Å, the O-Cu-O and N-Cu-N trans bond angles are 145.5° and 150.3°, respectively. The O-Cu-N chelate angle is 94.6°. The calculated energies of van der Waals intermolecular interactions are compared with the thermogravimetric characteristics of the complex with ketoiminate and copper(II) ethylenediamine-bis-acetylacetonate.
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Original Russian Text Copyright © 2004 by I. A. Baidina, P. A Stabnikov, A. D. Vasiliev, S. A. Gromilov, and I. K. Igumenov
Translated from Zhurnal Strukturnoi Khimii, Vol. 45, No. 4, pp. 706–712, July–August, 2004.
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Baidina, I.A., Stabnikov, P.A., Vasiliev, A.D. et al. Crystal and molecular structure of copper(II) trans-bis-(2-(methylimino)-4-pentanonate). J Struct Chem 45, 671–677 (2004). https://doi.org/10.1007/s10947-005-0043-4
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DOI: https://doi.org/10.1007/s10947-005-0043-4