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Acta Cryst. (2013). E69, m639
[ doi:10.1107/S1600536813029838 ]

(3-Methyl­benzo­nitrile-[kappa]N)tetra­kis([mu]-N-phenyl­acetamidato)-[kappa]4N:O;[kappa]4O:N-di­rhodium(II)(Rh-Rh)

C. T. Eagle, N. Atem-Tambe, K. K. Kpogo, J. Tan and F. Quarshie

Abstract: In the title compound, [Rh2(C8H8NO)4(C8H7N)], the four acetamidate ligands bridging the dirhodium core are arranged in a 2,2-trans manner. One RhII atom is five-coordinate, in a distorted pyramidal geometry, while the other is six-coord­in­ate, with a disorted octa­hedral geometry. For the six-coord­inate RhII 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 RhII atom is coordinated by a trans pair of N atoms and a trans pair of O atoms from the four acetamide ligands. The Neq-Rh-Rh-Oeq torsion angles on the acetamide bridge varies between 12.55 (11) and 14.04 (8)°. In the crystal, the 3-methyl­benzo­nitrile ring shows a [pi]-[pi] 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 [pi]-[pi] inter­action with an inversion-related equivalent [inter­planar spacing = 3.416 (5) Å].


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