Abstract
New optically active levorotatory compounds [Ni(HL1)]NO3 (I) and [Ni(HL2)]NO3· H2O (II) containing the anions of chiral diaminodioximes, H2L1 and H2L2, derived from the terpenes ±-pinene and (+)-3- carene, respectively, were synthesized. Complexes I and II were studied by X-ray diffraction. The crystal structures of compounds are ionic, being composed of the [Ni(HL1)]+ or [Ni(HL2)]+ cations and the outer-sphere NO 3− anions. The Ni2+ ion coordinates four N atoms of the tetradentate chelating ligand, the NiN4 coordination unit being shaped like a tetrahedrally distorted square. Compounds I and II are diamagnetic, which corresponds to a low-spin d8 configuration. The NMR spectra of compounds were recorded and analyzed.
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Translated from Koordinatsionnaya Khimiya, Vol. 30, No. 12, 2004, pp. 888–896.
Original Russian Text Copyright © 2004 by Larionov, Myachina, Savel’eva, Glinskaya, Klevtsova, Sheludyakova, Tkachev, Bizyaev.
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Larionov, S.V., Myachina, L.I., Savel’eva, Z.A. et al. Synthesis and structure of optically active compounds [Ni(HL1)]NO3 and [Ni(HL2)]NO3H2O containing anions of diaminodioximes H2L1 and H2L2 derived from α-Pinene and (+)-3-Carene as Ligands. Russ J Coord Chem 30, 837–845 (2004). https://doi.org/10.1007/s11173-005-0002-9
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DOI: https://doi.org/10.1007/s11173-005-0002-9