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Synthesis, crystal and molecular structure of tetraaquabis(nicotinamide)cobalt(II) phthalate dihydrate

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Abstract

The coordination compound of cobalt(II) with nicotinamide [CoL2(H2O)4][C6H4(COO)2] · 2H2O (I) (where L stands for nicotinamide) was synthesized and characterized by IR spectroscopy, conductometry, and thermogravimetry. The X-ray structure of complex I was determined. Crystals are monoclinic: a = 15.630(2) Å, b = 7.550(2) Å, c = 21.035(4) Å, β = 100.90(5)°, V = 2437.4(4) Å3, Z = 4, space group C2/c. The structural units of complex I are centrosymmetrical cations [CoL2(H2O)4]2+, anions [C6H4(COO)2]2− (lying on axis 2), and molecules of waster of crystallization. Complex cations are packed into layers are alternate with layers containing anions and free H2O molecules. This is a classical case of π-π-staking interactions that lead to the formation of supramolecular layered assemblies.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    A. S. Antsyshkina, G. G. Sadikov & V. S. Sergienko

  2. Odessa National University, Dvoryanskaya ul. 2, Odessa, 65026, Ukraine

    T. V. Koksharova & I. S. Gritsenko

Authors
  1. A. S. Antsyshkina
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  2. G. G. Sadikov
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  3. T. V. Koksharova
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  4. I. S. Gritsenko
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  5. V. S. Sergienko
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Correspondence to A. S. Antsyshkina.

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Original Russian Text © A.S. Antsyshkina, G.G. Sadikov, T.V. Koksharova, I.S. Gritsenko, V.S. Sergienko, 2009, published in Zhurnal Neorganicheskoi Khimii, 2009, Vol. 54, No. 8, pp. 1379–1384.

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Antsyshkina, A.S., Sadikov, G.G., Koksharova, T.V. et al. Synthesis, crystal and molecular structure of tetraaquabis(nicotinamide)cobalt(II) phthalate dihydrate. Russ. J. Inorg. Chem. 54, 1310–1315 (2009). https://doi.org/10.1134/S003602360908021X

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  • DOI: https://doi.org/10.1134/S003602360908021X

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