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Synthesis and crystal structure of complexes of manganese(II), cobalt(II), and nickel(II) isothiocyanates with ɛ-caprolactam

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Abstract

The possibility of ɛ-caprolactam (CPL) to coordinate to manganese(II), cobalt(II), and nickel(II) rhodanides has been investigated. New complexes trans-[M(CPL)4(NCS)2], where M = Mn (I), Co (II), and Ni (III), have been synthesized. The complexes have been studied by chemical analysis and IR spectroscopy. According to X-ray diffraction, complexes are isostructural to each other and crystallize in monoclinic space group P21/c, Z = 2. For I: a = 6.9457(2) Å, b = 17.7751(6) 0A, c = 12.8999(4) 0A, β = 104.2670(10)°, V = 1543.51(8) Å3, ρcalc = 1.342 g/cm3, R 1 = 0.0426. For II: a = 6.8925(2) Å, b = 17.8189(8) Å, c = 12.7278(6) Å, β = 104.421(2)°, V = 1513.93(11) Å3, ρcalc = 1.377 g/cm3, R 1 = 0.0280. For III: a = 6.7804(2) Å, b = 18.4631(4) Å, c = 12.4841(3) Å, β = 105.2950(10)°, V = 1507.49(7) Å3, ρcalc = 1.382 g/cm3, R 1 = 0.0273. Structures I–III are molecular; the metal atom in each of them coordinates four CPL molecules and two NCS groups via oxygen and nitrogen atoms, respectively.

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Authors and Affiliations

  1. Kuzbass State Technical University, Vesennyaya ul. 28, Kemerovo, 650000, Russia

    S. V. Kochnev & T. G. Cherkasova

  2. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, 630090, Russia

    E. V. Peresypkina & A. V. Virovets

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  1. S. V. Kochnev
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  2. E. V. Peresypkina
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  3. A. V. Virovets
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  4. T. G. Cherkasova
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Correspondence to T. G. Cherkasova.

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Original Russian Text © S.V. Kochnev, E.V. Peresypkina, A.V. Virovets, T.G. Cherkasova, 2012, published in Zhurnal Neorganicheskoi Khimii, 2012, Vol. 57, No. 8, pp. 1143–1148.

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Kochnev, S.V., Peresypkina, E.V., Virovets, A.V. et al. Synthesis and crystal structure of complexes of manganese(II), cobalt(II), and nickel(II) isothiocyanates with ɛ-caprolactam. Russ. J. Inorg. Chem. 57, 1067–1072 (2012). https://doi.org/10.1134/S0036023612080086

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  • DOI: https://doi.org/10.1134/S0036023612080086

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