Poly[[[μ- trans-1,2-bis-(pyridin-4-yl)ethene-κ2 N: N']-μ-iodido-copper(I)]- trans-1,2-bis-(pyridin-4-yl)ethene (1/0.25)]

Jessica L Hoffman; Jessie E Akhigbe; Eric W Reinheimer; Bradley W Smucker

doi:10.1107/S2414314620009980

Poly[[[μ- trans-1,2-bis-(pyridin-4-yl)ethene-κ² N: N']-μ-iodido-copper(I)]- trans-1,2-bis-(pyridin-4-yl)ethene (1/0.25)]

IUCrdata. 2020 Jul 24;5(Pt 7):x200998. doi: 10.1107/S2414314620009980. eCollection 2020 Jul.

Authors

Jessica L Hoffman¹, Jessie E Akhigbe¹, Eric W Reinheimer², Bradley W Smucker¹

Affiliations

¹ Austin College, 900 N Grand, Sherman, TX 75090, USA.
² Rigaku Oxford Diffraction, 9009 New Trails Dr., The Woodlands, TX 77381, USA.

Abstract

The title compound, {[CuI(bpe)]·0.25(bpe)} _n , was synthesized similarly to (CuI)₂(bpe) [Neal et al. (2019 ▸). IUCrData, 4, x190122] with red crystals grown from aceto-nitrile solutions of CuI and the bpe ligand [bpe = 1,2-bis-(pyridin-4-yl)ethene, C₁₂H₁₀N₂]. The structure of the title compound is a type 1 complex in the Graham nomenclature [Graham et al. (2000 ▸). Inorg. Chem. 39, 5121-5132], having rhombic dimers of Cu₂I₂ that are bridged by two bpe ligands, to form oligomeric ribbons arranged as stairsteps. The step height is 2.8072 (11) Å, which is the Cu-Iⁱ distance of the dimer [symmetry code (i): 1 - x, 2 - y, 1 - z]. The resulting polymer displays a two-dimensional honeycomb framework along the (01) plane, and disordered free bpe mol-ecules fill the voids in the crystal.

Keywords: CuI dimer; coordination polymer; copper; crystal structure.

Grants and funding

Funding for this research was provided by: Welch Foundation (grant No. AD-0007 to the Chemistry Department at Austin College); Jerry Taylor and Nancy Bryant Foundation (gift to Austin College Science Division).