Synthesis and molecular structure of [Ru${}_3$(CO)${}_{10}$(µ-dppa)] (dppa = Ph${}_2$PN(H)PPh${}_2$) provided by its dioxane solvate

The sodium benzophenone ketyl-induced reaction of [Ru${}_3$(CO)${}_{12}$] with bis(diphenylphosphanyl)amine Ph${}_2$PN(H)PPh${}_2$ (dppa) in THF resulted in the formation of the expected metal cluster [Ru${}_3$(CO)${}_{10}$(µ-dppa)] (1) in high yield. 1 was fully characterized by spectroscopic means and crystals of the compound suitable for X-ray diffraction were obtained from dichloromethane/dioxane. The molecular structure of 1 as its dioxane solvate was determined by X-ray crystallography. The compound crystallized in a new crystal structure of [Ru${}_3$(CO)${}_{10}$(µ-dppa)] in the triclinic space group P$\overline{1}$, whereas that compound was described in an earlier report crystallizing from chloroform in the monoclinic space group P2${}_1$/c. (© 2020 The Authors. Zeitschrift für anorganische und allgemeine Chemie published by Wiley‐VCH GmbH)