Studies on the Ru(II) monocationic complexes [RuCl2(NO)(P–N)(PR3)]PF6, where P–N =o-diphenylphosphino-N,N-dimethylaniline, and R = Ph and p-X-C6H4 (X = OMe, Me, F)
作者:Juliana P. da Silva、Francisco D. Fagundes、Davi F. Back、Javier Ellena、Brian R. James、Márcio P. de Araujo
DOI:10.1016/j.ica.2015.11.030
日期:2017.1
(1) with the triarylphosphines PR3 in MeOH allows for isolation of the monocationic Ru(II) complexes [RuCl2(NO)(P–N)(PR3)]PF6; P–N = o-diphenylphosphino-N,N-dimethylaniline, and R = p-MeO-C6H4 (complex 2), p-Me-C6H4 (3), Ph (4), and p-F-C6H4 (5). The complexes were characterized by elemental analysis, 31P1H}, 1H NMR and IR spectroscopies, ESI-MS, CV, and X-ray structural data for complexes 3–5. The
摘要fac- [RuCl3(NO)(P–N)](1)与三芳基膦PR3在MeOH中的反应可分离单阳离子Ru(II)络合物[RuCl2(NO)(P–N)(PR3)]。 PF6; P–N =邻二苯基膦基-N,N-二甲基苯胺,R = p-MeO-C6H4(配合物2),p-Me-C6H4(3),Ph(4)和pF-C6H4(5)。通过元素分析,31P 1H},1H NMR和IR光谱,ESI-MS,CV和X射线结构数据3-5对复合物进行了表征。31P 1H}光谱显示两个双峰,其2Jpp值与顺式P原子一致。ESI-MS光谱显示分子离子[RuCl2(NO)(P–N)(PR3)] +和碎片离子[M-PR3] +,[M-PR3-Cl] +和[M-PR3- 2Cl] +。CV数据显示了一个单电子准可逆的还原过程,其集中在Ru-NO单元上,该过程取决于PR3的pKa。红外光谱揭示了协调NO +的νNO谱带。一个已知的