139426-72-5Relevant academic research and scientific papers
Structural and spectroscopic characterization of a paramagnetic isocyanide complex of rhodium(II)
Dunbar, Kim R.,Haefner, Steven C.
, p. 1431 - 1433 (1992)
The remarkably stable paramagnetic Rh(II) complex [Rh(η3-TMPP)2][BF4]2 (TMPP = tris(2,4,6-trimethoxyphenyl)phosphine) reacts with 2 equiv of tert-butyl isocyanide to yield the air-stable mononuctear Rh(II) complex [Rh(η3-TMPP)2(CNBut)2][BF 4]2. A single-crystal X-ray diffraction study reveals that the cation adopts a distorted-square-planar geometry in which the phosphine ligands are trans rather than cis as in the parent complex. The paramagnetism of this unusual four-coordinate Rh(II) metallo radical was probed by a variety of spectroscopic and magnetic techniques.
