526192-55-2Relevant academic research and scientific papers
Synthetic, spectroscopic and structural studies of the rhenium(I) dicarbonyl complexes of phosphite, phosphonite, and phosphinite ligands: cis,mer-[ReBr(CO)2{PPh3-n(OR)n}3] (R = Me, Et; n = 1-3)
Carballo, Rosa,Losada-Gonzalez, Pilar,Vazquez-Lopez, Ezequiel M.
, p. 249 - 254 (2003)
The reaction of [ReBr(CO)5] with phosphite and phosphonite ligands in toluene yielded cis,mer-[ReBr(CO)2L3] (2: L = P(OMe)3 2a: P(OEt)3 2b: PPh(OMe)2 2c: PPh(OEt)2 2d). Compounds 2c and 2d were also obtained, as were the phosphinite complexes 2e [L = PPh2(OMe)] and 2f [L = PPh2(OEt)], by reaction of the corresponding phosphorus ligand with trans,mer-[ReBr(CO)3L2]. Compounds 2 were all characterized by elemental analysis, mass spectrometry and NMR spectroscopy, and the structures of 2b, 2c and 2d were determined by X-ray diffractometry. Compounds 2a-d are stable in chloroform and dichloromethane, but 2e and 2f are transformed into the corresponding trans,mer[ReBr(CO)3L2] complexes by a reaction for which a partial mechanism is put forward.
