Bis(dimethylglyoximato-N,N')(isopropyl)(triphenylphosphine)rhodium(III)

The structure of the title compound, [Rh(C₄H₇N₂O₂)₂{CH(CH₃)₂}{P(C₆H₅)₃}], consists of discrete complexes in which the Rh atom displays a distorted octahedral coordination. The two dimethylglyoximato ligands lie in the equatorial plane and the isopropyl and triphenylphosphine species occupy the axial positions. The Rh atom is displaced by 0.096 (1) Å from the mean plane through the four oxime N donor atoms towards the P atom. The average Rh—N distance is 1.975 (10) Å, while the axial Rh—P and Rh—C distances are 2.489 (2) and 2.146 (6) Å, respectively. Comparison of the results with those obtained previously for other compounds of this type indicates that the trans-influence of R in the axial fragment Ph₃P—Rh—R is determined by its σ-donor power.

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