Preparation and reduction of rhodium(III) complexes of a quadridentate Schiff-base ligand, and synthesis of organo-rhodium(III) derivatives

Article abstract of DOI:10.1016/S0022-328X(00)83342-2

The Rh^III Schiff-base complexes RhSalenClPy and (PyH)(RhSalenCl₂), and the Rh^IIRh^II bonded dimer (RhSalenPy)₂ have been prepared, and their probable structures and reactivities are discussed. RhSalenClPy has been reduced using both 0.2% sodium amalgam and NaBH₄/PdCl₂ to produce solutions containing mono- and di-sodium derivatives, and the di-sodium derivative has been treated with a number of organic halides to yield a series of derivatives of the general formula R-RhSalenPy (R=CH₃, C₂H₅, n-C₃H₇, i-C₃H₇, n-C₄H₉, CH₃CO, CH₂CHCH₂ and C₆H₅CH₂). Spectral evidence confirms that these derivatives are RhC bonded.