Abstract
The crystal structure of catena-di(μ2-2-thiobarbiturato-O,S)aqualead(II) C8H8N4O5S2Pb (C4H4N2O2S is 2-thiobarbituric acid, H2TBA) is determined. Crystallographic data for catena-[Pb(H2O)(μ2-HTBA-O,S)2] are as follows: a = 6.5972(1) Å, b = 9.8917(2) Å, c = 10.0893(2) Å, α = 106.702(1)°, β = 93.395(2)°, γ = 107.48(1)°, V = 593.82(2) Å3, space group \(P\bar 1\), Z = 2. The Pb2+ ion is linked with six monodentate HTBA− ligands through two O atoms and four S atoms and also connected with a water molecule. Additionally, there is a shortened Pb-S contact (3.622 Å), given which the complex polyhedron represents a distorted square antiprism. Hydrogen bonds N-H…O and O-H…O form a branched three-dimensional network. The structure is also stabilized by the π-π interaction of heterocyclic HTBA− ions.
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Original Russian Text Copyright © 2013 by N. N. Golovnev, M. S. Molokeev
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Translated from Zhurnal Strukturnoi Khimii, Vol. 54, No. 5, pp. 931–934, September–October, 2013.
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Golovnev, N.N., Molokeev, M.S. Crystal structure of catena-DI(2-thiobarbiturato-O,S)aqualead(II). J Struct Chem 54, 968–971 (2013). https://doi.org/10.1134/S0022476613050193
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DOI: https://doi.org/10.1134/S0022476613050193