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1H NMR study of the reduced nickel-octaethylporphyrin complex

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Abstract

The behavior of the proton chemical shifts due to the addition of an extra electron to the starting diamagnetic complex of Ni(II)-octaethylporphyrin is studied. The isotropic shifts are analyzed, and it is concluded that the reduction affords Ni(I)-octaethylporphyrin. The electronic configuration of nickel is (dxy)2(dxz, dyz)4(dz 2)2(dx 2-y 2)1. The density of the unpaired electron is transferred from the Ni(I) ion to the orbitals of the porphyrin ligand; the transfer includes both the σ- and π* (back binding).

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Authors
  1. G. N. Sinyakov
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  2. A. M. Shulga
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Additional information

Institute of Molecular and Atomic Physics, Belarus Academy of Sciences. Translated fromZhurnal Strukturnoi Khimii, Vol. 37, No. 3, pp. 507–513, May–June, 1996.

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Sinyakov, G.N., Shulga, A.M. 1H NMR study of the reduced nickel-octaethylporphyrin complex. J Struct Chem 37, 442–446 (1996). https://doi.org/10.1007/BF02578598

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  • DOI: https://doi.org/10.1007/BF02578598

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