Di-μ-bromo-bis[bromo(η6-para-cymene)-ruthenium(II)] benzene solvate and di-μ-iodo-bis[(η6-para-cymene)iodo-ruthenium(II)] toluene solvate

Article abstract of DOI:10.1107/S0108270199010410

The homologous title molecules, [Ru₂Br₄(C₁₀H₁₄) ₂]·-C₆H₆, (1), and [Ru₂I₄(C₁₀H₁₄) ₂]·C₇H₈, (2), consist of arene-ruthenium moieties [Ru-to-ring distances of 1.655 (2) A in (1) and 1.673 (3) A in (2)] with a terminal halogen ligand [Ru - Br 2.548 (1) A in (1) and Ru - I 2.726 (1) A in (2)], held together by two symmetrical halogen bridges [Ru - Br 2.575 (1) A in (1) and Ru - I 2.736 (1) A in (2)]. The arene rings are planar and parallel to each other, and the terminal halogen ligands are coordinated to ruthenium trans with respect to each other. Both molecules possess C_i symmetry.