Synthesis and Characterization of Organorhodium(I) Complexes with the Tridentate Ligand 2,6-Bis(diphenylphosphanylmethyl)pyridine [Rh(PNP)R] (R = CH3, C6H5) and Their Reactivity toward Ethylene and Protic Acids

✍ Scribed by Christine Hahn; Michael Spiegler; Eberhardt Herdtweck; Rudolf Taube

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 297 KB
• Volume: 1998
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/(sici)1099-0682(199810)1998:10<1425::aid-ejic1425>3.0.co;2-r

✦ Synopsis

The organorhodium(I) complexes [Rh(PNP)R] [PNP = 2,6-stable monohydridorhodium(III) complex [Rh(PNP)ClH-(CH 3 CN)]SO 3 CF 3 (7) was obtained by the reaction of bis(diphenylphosphanylmethyl)pyridine, R = CH 3 (3a), C 6 H 5 (3b)] were synthesized from [Rh(PNP)(C 2 H 4 )]BF 4 (1a) and LiR [Rh(PNP)Cl] with HSO 3 CF 3 in a solution of THF/acetonitrile and characterized by X-ray crystallography. In a THF and characterized by 31 P-, 1 H-, and 13 C-NMR spectroscopy and EI mass spectrometry. In a THF solution saturated with solution the organorhodium(I) complexes 3a, b react upon the addition of either HSO 3 CF 3 or HNMe 3 Cl with the ethylene 3a and 3b form the five-coordinate ethylene organorhodium(I) complexes [Rh(PNP)R(C 2 H 4 )] (5a, b). The immediate release of the respective hydrocarbon HR.