Synthesis and structure of an aryltellurenium(II) cation; [4-tert-butyl-2,6-bis(1-pentyl-1H-benzimidazol-2-yl-κN3)phenyl-κC1]tellurium(II) (1,4-dioxane)triiodidomercurate(II)

Author:

Rani Varsha,Singh Harkesh B.,Butcher Ray J.ORCID

Abstract

In the title salt, (C34H41N4Te)[HgI3(C4H8O2)], the aryltellurenium [C34H41N4Te]+cations and [HgI3(dioxane)]anions are linked by a short interaction between the Te atom and one of the I-atom donors of the anion, as well as through weak C—H...I interactions. The geometry around the Te atom is T-shaped with the coordination comprising a C atom of the central aromatic ring and two N atom donors of the benzimidazolyl moiety. The Te—N bond lengths are almost equal [2.232 (3) and 2.244 (3) Å], while the Te—C bond length is 2.071 (4) Å. The N—Te—N bond angle is 150.68 (11)°. The HgIIatom of the anion is coordinated by iodide ions from three sides and the fourth coordination site is occupied by an O atom of the solvent molecule (dioxane). Thus, it attains a trigonal–pyrimidal geometry, with O—Hg—I angles ranging of 90.76 (8) and 96.76 (7)° and I—Hg—I angles ranging from 112.41 (1) to 125.10 (1)°. The cations and anions are involved in numerous weak π–π stacking interactions involving both the central phenyl ring and two inversion-related benzimidazole moieties, which propagate in thea-axis direction. In addition, there are numerous C—H...I interactions between the cations and anions, which link them into a complex three-dimensional array.

Funder

National Science Foundation, Directorate for Mathematical and Physical Sciences

Department of Science and Technology, Ministry of Science and Technology

Council of Scientific and Industrial Research

Publisher

International Union of Crystallography (IUCr)

Subject

Condensed Matter Physics,General Materials Science,General Chemistry

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