Tetra-kis(μ-acetato-κ2O: O')bis-[(tetra-hydro-furan-κ O)chromium(II)]

Christian Heiser; Kurt Merzweiler

doi:10.1107/S2414314623008015

Tetra-kis(μ-acetato-κ²O: O')bis-[(tetra-hydro-furan-κ O)chromium(II)]

IUCrdata. 2023 Sep 22;8(Pt 9):x230801. doi: 10.1107/S2414314623008015. eCollection 2023 Sep.

Authors

Christian Heiser¹, Kurt Merzweiler¹

Affiliation

¹ Martin-Luther-Universität Halle-Wittenberg, Naturwissenschaftliche Fakultät II, Institut für Chemie, D-06099 Halle, Germany.

Abstract

The title compound, [Cr₂(C₂H₃O₂)₄(C₄H₈O)₂] or [Cr₂(OAc)₄(THF)₂] (OAc is acetate, THF is tetra-hydro-furan), was obtained by recrystallization of anhydrous chromium(II) acetate [Cr₂(OAc)₄] from hot tetra-hydro-furan. The centrosymmetric complex forms monoclinic crystals, space group C2/c, and consists of two Cr^II atoms bridged by four acetate ligands. Additionally, each Cr^II atom is coordinated by a terminal THF ligand, which leads to a square-pyramidal coordination.

Keywords: acetate; chromium; crystal structure; paddle wheel; tetrahydrofurane.

Grants and funding

We acknowledge the financial support within the funding programme Open Access Publishing by the German Research Foundation (DFG).