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In the title compound, [Rh 2 (C 8 H 8 NO) 4 (C 8 H 7 N)], the four acetamidate ligands bridging the dirhodium core are arranged in a 2,2- trans  manner. One Rh II  atom is five-coordinate, in a distorted pyramidal geometry, while the other is six-coord­in­ate, with a disorted octa­hedral geometry. For the six-coord­inate Rh II  atom, the axial nitrile ligand shows a non-linear Rh–nitrile coordination with an Rh—N—C bond angle of 166.4 (4)° and a nitrile N—C bond length of 1.138 (6) Å. Each unique Rh II  atom is coordinated by a  trans  pair of N atoms and a  trans  pair of O atoms from the four acetamide ligands. The N eq —Rh—Rh—O eq  torsion angles on the acetamide bridge varies between 12.55 (11) and 14.04 (8)°. In the crystal, the 3-methyl­benzo­nitrile ring shows a π–π inter­action with an inversion-related equivalent [inter­planar spacing = 3.360 (6) Å]. A phenyl ring on one of the acetamide ligands also has a face-to-face π–π inter­action with an inversion-related equivalent [inter­planar spacing = 3.416 (5) Å].

acta crystallographica. section e

(3-Methylbenzonitrile-κN)tetrakis(μ-N-phenylacetamidato)-κ4N:O;κ4O:N-dirhodium(II)(Rh—Rh)