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Synthesis and crystal structures of cobalt(II) and nickel(II) complexes containing nitronyl nitroxide radical and dicyanamide

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Abstract

Two new complexes [Co(NIT-1′-MeBzIm)2(Dca)2] (I) and [Ni(NIT-1′-MeBzIm)2(Dca)(H2O) · NO3 · H2O (II) (NIT-1′-MeBzIm = 2-{2′-[(l′-methyl)benzimidazolyl]}-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide; Dca = N(CN)2) were prepared and structurally characterized by single-crystal X-ray diffraction. Relevant crystallographic parameters are as follows: monoclinic, P21/c space group, Z = 4; crystal data: C34H38N14O4Co, M = 765.71, a = 14.343(4), b = 14.322(4), c = 18.626(5) Å, β = 105.956(3)° for I. Orthorhombic Pna21 space group, Z = 4; crystal data: C32H42N12O9Ni, M = 797.49, a = 24.426(4), b = 11.0326(18), c = 13.980(2)Å for II. The X-ray analysis reveals that Co2+ ion and Ni2+ ion resides in a approximate sdistorted octahedron center. In I, the complex was linked by intermolecular hydrogen bonds, resulting in a 1D chain configuration. In II, the complex was linked by intermolecular hydrogen bonds, resulting in a 2D network configuration.

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Authors and Affiliations

  1. Engineering Research Centre for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing, 400067, P.R. China

    G. Liu, B. Chen & J. T. Cheng

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  1. G. Liu
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  2. B. Chen
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  3. J. T. Cheng
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Correspondence to G. Liu.

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Liu, G., Chen, B. & Cheng, J.T. Synthesis and crystal structures of cobalt(II) and nickel(II) complexes containing nitronyl nitroxide radical and dicyanamide. Russ J Coord Chem 39, 393–398 (2013). https://doi.org/10.1134/S1070328413050059

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  • DOI: https://doi.org/10.1134/S1070328413050059

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