Oxidative reactions of “half-sandwich” ruthenium compounds: formation of cationic nitrosyl ruthenium(II) derivatives
作者:Pietro Diversi、Marco Fontani、Melania Fuligni、Franco Laschi、Simona Matteoni、Calogero Pinzino、Piero Zanello
DOI:10.1016/s0022-328x(01)00680-5
日期:2001.4
The electrochemical behaviour of the ruthenium(II) alkyl complexes [Ru(Me)Cp*(L)2] (Cp*=η5-C5Me5; L=PMe32a, PMe2Ph 2b), [Ru(CH2CMe3)Cp*(PMe3)2] (3a), and the related [Ru(Me)Cp(PPh3)2] (4d) (Cp=η5-C5H5) in CH2Cl2 involves a one-electron process, yielding the corresponding ruthenium(III) paramagnetic cations, as shown by coupled electrochemical–EPR studies. Compounds 2–4 are oxidised by [FeCp2]+ in benzene
钌的电化学行为(II)配合物的烷基的[Ru(Me)中的Cp *(L)2 ](CP * =η 5 -C 5我5 ; L = PME 3 2A,PME 2博士图2b),的[Ru( CH 2 CME 3)的Cp *(PME 3)2 ](图3a),以及相关的[Ru(Me)中的Cp(PPH 3)2 ](图4d)的Cp =η(5 -C 5 H ^ 5)在CH 2氯2个涉及单电子过程,产生相应的钌(III)顺磁性阳离子,如电化学-EPR耦合研究所示。化合物2 - 4由[FeCp氧化2 ] +中苯可以分解得到相应的烷烃身份不明的顺磁性产品。在CP *化合物与NOBF反应4得到的单阳离子alkylnitrosyl衍生物的[Ru(R)的Cp *(NO)(L)] BF 4(R =甲基; L = PME 3 7a中,PME 2博士7b中。R = CH 2 CME 3 ; L = PMe 3),并且当NO +超过时,钌(II)的双金属配合物[RuCp