Crystal structure of poly[tetra-μ-cyanido-ethanol-bis(2-iodo-pyrazine)-digold(I)iron(II)]

Bin Fei; Olesia I Kucheriv; Inna I Tokmenko; Kateryna V Terebilenko; Il'ya A Gural'skiy

doi:10.1107/S2056989017014785

Crystal structure of poly[tetra-μ-cyanido-ethanol-bis(2-iodo-pyrazine)-digold(I)iron(II)]

Acta Crystallogr E Crystallogr Commun. 2017 Oct 24;73(Pt 11):1755-1758. doi: 10.1107/S2056989017014785. eCollection 2017 Nov 1.

Authors

Bin Fei¹, Olesia I Kucheriv², Inna I Tokmenko^{2

3}, Kateryna V Terebilenko², Il'ya A Gural'skiy²

Affiliations

¹ School of Chemical Engineering, Nanjing University of Science and Technology, 210094 Nanjing, People's Republic of China.
² Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine.
³ Ukraine National O. O. Bogomoletz Medical University, 13 T. Shevchenko Blvd., Kyiv, Ukraine.

Abstract

In the title polymeric complex, [Au₂Fe(CN)₄(C₄H₃IN₂)₂(C₂H₆O)] _n , the Fe^II cation is coordinated by two iodo-pyrazine mol-ecules, one ethanol mol-ecule and three di-cyano-aurate anions in a distorted N₅O octa-hedral geometry. In the crystal, the di-cyano-aurate anions bridge the Fe^II cations to form polymeric chains propagating along the b-axis direction. Stabilization of the crystal structure is provided by O-H⋯N hydrogen bonds and π-π stacking between parallel iodo-pyrazine rings of neighbouring chains, the centroid-centroid distances being 3.654 (10) and 3.658 (9) Å.

Keywords: crystal structure; dicyanoaurate; iodopyrazine; polymeric complex.

Grants and funding

This work was funded by Ministry of Education and Science of Ukraine grant 16BF037-01M.