(3-Methyl-benzo-nitrile-1κN)-cis-tetra-kis(μ-N-phenyl-acetamidato)-1:2κ(4) N:O;1:2κ(4) O:N-dirhodium(II)(Rh-Rh)

Acta Crystallogr Sect E Struct Rep Online. 2014 Jul 23;70(Pt 8):m304. doi: 10.1107/S1600536814016031. eCollection 2014 Aug 1.

Abstract

The complex molecule of the title compound, [Rh2{N(C6H5)COCH3}4(NCC7H7)], has crystallographically-imposed mirror symmetry. The four acetamide ligands bridging the dirhodium core are arranged in a 2,2-cis manner with two N atoms and two O atoms coordinating to the unique Rh(II) atom cis to one another. The Neq-Rh-Rh-Oeq torsion angles on the acetamide bridge are 0.75 (7) and 1.99 (9)°. The axial nitrile ligand completes the distorted octa-hedral coordination sphere of one Rh(II) atom and shows a nonlinear coordination, with an Rh-N-C bond angle of 162.8 (5)°; the N-C bond length is 1.154 (7) Å.

Keywords: crystal structure.