Crystal structure of catena-poly[[[tetra-aqua-iron(II)]- trans-μ-1,2-bis-(pyridin-4-yl)ethene-κ2N: N'] bis-(p-toluene-sulfonate) methanol disolvate]

Volodymyr M Hiiuk; Diana D Barakhty; Sergiu Shova; Ruslan A Polunin; Il'ya A Gural'skiy

doi:10.1107/S2056989017017054

Crystal structure of catena-poly[[[tetra-aqua-iron(II)]- trans-μ-1,2-bis-(pyridin-4-yl)ethene-κ²N: N'] bis-(p-toluene-sulfonate) methanol disolvate]

Acta Crystallogr E Crystallogr Commun. 2017 Nov 30;73(Pt 12):1977-1980. doi: 10.1107/S2056989017017054. eCollection 2017 Dec 1.

Authors

Volodymyr M Hiiuk^{1

2

3}, Diana D Barakhty^{1

3}, Sergiu Shova⁴, Ruslan A Polunin^{1

5}, Il'ya A Gural'skiy^{1

3}

Affiliations

¹ Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine.
² Faculty of Natural Sciences, National University of Kyiv-Mohyla Academy, Skovorody St. 2, Kyiv 04070, Ukraine.
³ UkrOrgSyntez Ltd, Schorsa St. 29, Kyiv 01133, Ukraine.
⁴ "Petru Poni" Institute Of Macromolecular Chemistry, Romanian Academy of Science, Aleea Grigore Ghica Voda 41-A, RO-700487 Iasi, Romania.
⁵ L.V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Prospekt Nauky 31, Kyiv 03028, Ukraine.

Abstract

In the title polymeric complex, {[Fe(C₁₂H₁₀N₂)₂(H₂O)₄](CH₃C₆H₄SO₃)₂·2CH₃OH} _n , the Fe^II cation, located on an inversion centre, is coordinated by four water mol-ecules in the equatorial positions and two 1,2-bis-(pyridin-4-yl)ethene mol-ecules in the axial positions. This results in a distorted octa-hedral geometry for the [N₂O₄] coordination polyhedron. The 1,2-bis-(pyridin-4-yl)ethene mol-ecules bridge the Fe^II cations, forming polymeric chains running along the a-axis direction. Stabilization of the crystal structure is provided by O-H⋯O hydrogen bonds; these are formed by coordinated water mol-ecules as donors towards the O atoms of the methanol mol-ecules and tosyl-ate anions as acceptors of protons, leading to the formation of a three-dimensional supra-molecular network. Weak C-H⋯O hydrogen bonds are also observed in the crystal.

Keywords: 1,2-bis(pyridin-4-yl)ethene; crystal structure; hydrogen bonding; iron(II) complex; polymeric complex.

Grants and funding

This work was funded by Ministry of Education and Science of Ukraine grant 16BF037-01M. H2020-MSCA-RISE-2016 grant Project 73422.