Reactions of [Ru(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup>with water-soluble tertiary phosphines
作者:József Kovács、Ferenc Joó、Attila C. Bényei、Gábor Laurenczy
DOI:10.1039/b405878j
日期:——
In aqueous solutions under mild conditions, [Ru(H2O)6]2+ was reacted with various water-soluble tertiary phosphines. As determined by multinuclear NMR spectroscopy, reactions with the sulfonated arylphosphines L = mtppms, ptppms and mtppts yielded only the mono- and bisphosphine complexes, [Ru(H2O)5L]2+, cis-[Ru(H2O)4L2]2+, and trans-[Ru(H2O)4L2]2+ even in a high ligand excess. With the small aliphatic
在温和条件下的水溶液中,[Ru(H 2 O)6 ] 2+与各种水溶性叔膦。由多核决定核磁共振波谱,与磺化芳基膦L = m tppms,p tppms和m tppts的反应仅产生单和双膦配合物,[Ru(H 2 O)5 L] 2+,顺式-[Ru(H 2 O)4 L 2 ] 2+,和反式- [茹(H 2 O)4大号2 ] 2+,即使在高配体过量的。与小的脂族膦L =1,3,5-三氮杂-7-磷三环-[3.3.1.1 3,7 ]癸烷 [p]在[L]:[Ru] = 12:1时, 特里斯-和四(基)膦物种,[Ru(H 2 O)3(pta)3 ] 2 +,[Ru(H 2 O)2(pta)4 ] 2 +,[Ru(H 2 O)(OH)(pta)即使少量也检测到了4 ] +和[Ru(OH)2 pta 4 ]。这些结果对于原位制备Ru(II)-叔膦具有重要意义。催化剂。该复合物的结构的反式的[Ru(H - 2 O)4(ptaMe)2