Transition Metal Complexes of Phosphinous Acids Featuring a Quasichelating Unit: Synthesis, Characterization, and Hetero-bimetallic Complexes
作者:Nadine Allefeld、Julia Bader、Beate Neumann、Hans-Georg Stammler、Nikolai Ignat’ev、Berthold Hoge
DOI:10.1021/acs.inorgchem.5b01038
日期:2015.8.17
oxides were employed as preligands for the synthesis of catalytically active transition metal complexes of the phosphinous acids (CF3)2POH and (C2F5)2POH. Their reactions with solid PtCl2 and PdCl2 led to the formation of mononuclear phosphinous acid complexes [Cl2MP(Rf)2OH}2] (M = Pd, Pt; Rf = C2F5, CF3), which can be crystallized, for example, as its pyridinium salts, 2[HPy]+[Cl2PdP(CF3)2O}2]2–. In vacuo
使用二有机膦氧化物作为预配体来合成次膦酸(CF 3)2 POH和(C 2 F 5)2 POH的催化活性过渡金属配合物。他们与固体PtCl 2和PdCl 2的反应导致形成单核次膦酸络合物[Cl 2 M P(R f)2 OH} 2 ](M = Pd,Pt; R f = C 2 F 5,CF 3),例如可以结晶为吡啶鎓盐2 [HPy] + [Cl 2Pd P(CF 3)2 O} 2 ] 2–。在真空中,HCl从中性钯络合物中释放出来,提供双核和多核络合物的混合物。此外,(C 2 F 5)2 POH与钯,铂和镍的几种β-二酮配合物反应,生成了空气和水分稳定的配合物[(acac)M [P(R f)2 O] 2 H }],具有亚膦酸次膦酸次膦酸酯单元P(R f)2 O···H··O(R f)2 P} -。[Ni(Cp)2的处理](Cp =环戊二烯基)和[(cod)RhCl] 2(cod = 1