Alkene Complexes of Divalent and Trivalent Ruthenium Stabilized by Chelation. Dependence of Coordinated Alkene Orientation on Metal Oxidation State
作者:Martin A. Bennett、Graham A. Heath、David C. R. Hockless、Ivan Kovacik、Anthony C. Willis
DOI:10.1021/ja973282k
日期:1998.2.1
(7) gives the corresponding bis(acetylacetonato)ruthenium(II) complexes [Ru(acac)2(LL‘)] (8−14). These undergo one-electron oxidation by cyclic voltammetry to the corresponding cations [Ru(acac)2(LL‘)]+, the process being reversible at both room temperature and −60 °C. The cations were isolated as deep blue, paramagnetic PF6 or SbF6 salts from the oxidation of the ruthenium(II) precursors 8−12 and 14
在螯合烯烃 N-和 O-供体配体 (LL') 2-乙烯基-N,N-二甲基苯胺,o 存在下,锌汞齐还原三(乙酰丙酮)钌 (III),[Ru(acac)3] -CH2CHC6H4NMe2 (1), 2-异丙烯基-N,N-二甲基苯胺, o-CH2C(CH3)C6H4NMe2 (2), 3-丁烯基二甲胺, CH2CHCH2CH2NMe2 (3), 2-烯丙基吡啶, CH2CHCH2C5H4N (4),甲基-4-戊烯-2-one)、CH2C(CH3)CH2COCH3 (5)、2-甲氧基苯乙烯、o-CH2CHC6H4OMe (6) 和 3-丁烯基甲基醚、CH2CHCH2CH2OCH3 (7) 得到相应的双(乙酰丙酮合)钌( II) 络合物 [Ru(acac)2(LL')] (8-14)。它们通过循环伏安法进行单电子氧化,生成相应的阳离子 [Ru(acac)2(LL')]+,该过程在室温和 -60 °C