Immobilization of platinum(ii) and palladium(ii) complexes on metal oxides by sol–gel processing and surface modification using bifunctional phosphine–phosphonate esters
作者:Gilles Guerrero、P. Hubert Mutin、E. Framery、André Vioux
DOI:10.1039/b800250a
日期:——
2]2 (2) and trans-Cl2Pd[Ph2P(C6H4)P(O)(OEt)2]2 (3) were used to immobilize platinum(II) and palladium(II) complexes on metal oxide supports by three different routes: sol–gel incorporation of L in TiO2 or ZrO2 matrices followed by complexation with PtCl2(PhCN)2, direct sol–gel immobilization of 1 and 2, surface modification of TiO2nanoparticles with 2 and 3. The hybrid solids were characterized by
双功能膦膦酸酯衍生物Ph 2 P(CH 2)3 P(O)(OSiMe 3)2(L),(顺式-Cl 2 Pt [Ph 2 P(CH 2)3 P(O)(OSiMe 3)2 ] 2(1),反式-Cl 2 Pd [Ph 2 P(C 6 H 4)P(O)(OSiMe 3)2 ] 2(2)和反式-Cl 2使用Pd [Ph 2 P(C 6 H 4)P(O)(OEt)2 ] 2(3)将铂(II)和钯(II)络合物固定在金属上氧化物通过三种不同的途径提供支持:L在TiO 2或ZrO 2基质中溶胶-凝胶结合,然后与PtCl 2(PhCN)2络合,直接将1和2溶胶-凝胶固定,用2和3对TiO 2纳米颗粒进行表面改性。杂化固体的特征在于固态31 P MAS核磁共振 光谱学,表面积测量和化学分析;讨论了不同路线的优缺点。这项研究表明膦酸酯 可以提供有价值的替代 膦酸 用于制备基于金属的功能性有机-无机杂化物 氧化物。