Crystal structure of catena-poly[[di-iodidomer-cury(II)]-μ-2,2'-di-thio-bis-(pyridine N-oxide)-κ2O: O']

Rüdiger W Seidel; Iris M Oppel

doi:10.1107/S2056989018003055

Crystal structure of catena-poly[[di-iodidomer-cury(II)]-μ-2,2'-di-thio-bis-(pyridine N-oxide)-κ²O: O']

Acta Crystallogr E Crystallogr Commun. 2018 Mar 2;74(Pt 4):433-435. doi: 10.1107/S2056989018003055. eCollection 2018 Apr 1.

Authors

Rüdiger W Seidel¹, Iris M Oppel²

Affiliations

¹ Lehrstuhl für Analytische Chemie, Ruhr-Universität Bochum, Universitätstrasse 150, 44780 Bochum, Germany.
² Institut für Anorganische Chemie, Rheinisch-Westfälische Technische Hochschule Aachen, Landoltweg 1, 52074 Aachen, Germany.

Abstract

The title compound, [HgI₂(C₁₀H₈N₂O₂S₂)] _n , a one-dimensional coordination polymer with HgI₂ units and 2,2'-di-thio-bis-(pyridine N-oxide) spacer ligands in an alternating fashion, forms helical chains running along the b axis in the crystal. Within a single coordination polymer strand, the axially chiral 2,2'-di-thio-bis-(pyridine N-oxide) ligands are homochiral, but the enanti-omeric conformation is present in adjacent strands. Within a coordination polymer strand, the iodido ligands point towards the centroids of the aromatic rings of the pyridine N-oxide moieties in the coordination sphere of Hg^II. Moreover, intra-strand C-H⋯O and C-H⋯I inter-actions, and inter-strand short S⋯I and S⋯O contacts are observed.

Keywords: 2,2′-dithiobis(pyridine N-oxide); HgII complex; crystal structure; disulfide compound; one-dimensional coordination polymer.