研究了使用膦酸酯锚定基团将铜配合物与1,10-菲咯啉(phen)固定化的不同策略,以制备坚固而多孔的多相催化剂。均配型和杂铜(我)与配合啉轴承双(三甲基甲硅烷)磷锚定基团(Pphen硅在不同的位置)苯制备主链和共价结合到二氧化钛(二氧化钛2通过使用溶胶-凝胶法)干凝胶或接枝到介孔TiO 2(S BET = 650 m 2 g -1)的表面上。铜(I双(Pphen-Si)配合物是唯一成功锚固在TiO 2表面的配合物,因为异质化通常伴随着铜配合物的不良解离。按照两步程序,包括固定Pphen-Si螯合剂并与铜(I)离子连续络合,获得了基于具有一个phen配体的铜(I)螯合物的杂化材料。多孔材料Cu / 6b / SM / A,显示的BET表面积为243 m 2 g -1,承载力为0.57 mmol g -1根据这种方法合成了该配合物。还证明了可重复使用的Cu / 6b / SM / A材料在So
Enhanced catalytic activity of CuI/diethoxyphosphoryl-1,10-phenanthrolines in ‘on water’ Cu-catalyzed Sonogashira reaction
摘要:
The use of Cul/diethoxyphosphory1-1,10-phenanthrolines and 'on water' conditions in the Cu-catalyzed Sonogashira reaction of aryl iodides with terminal alkynes significantly increases the reaction rate as compared to that in organic solvents.
Two series of copper(I) complexes with diethoxyphosphoryl-substituted 1,10-phenanthroline ligands were synthesized and characterized in the solid state and in solution. The first comprised mixed-ligand CuI complexes with phenanthroline and triphenylphosphine. The second series includes bis-chelates with two phenanthroline ligands. According to the X-ray data for the six complexes, the ditopic phenanthroline
合成了两个系列的铜 (I) 配合物与二乙氧基磷酰基取代的 1,10-菲咯啉配体,并在固态和溶液中表征。第一种包括与菲咯啉和三苯基膦的混合配体 CuI 复合物。第二个系列包括具有两个菲咯啉配体的双螯合物。根据六种配合物的 X 射线数据,双位菲咯啉配体通过两个系列中的两个氮原子与铜 (I) 原子呈双齿配位。通过 1 H 和 31 P NMR 光谱、电化学和光谱电化学研究了涉及不同菲咯啉铜 (I) 物种的溶液平衡。这两个系列的这些不稳定配合物的溶液形态不同,取决于溶剂的性质和菲咯啉骨架上磷取代基的位置。配位溶剂可以取代金属中心内部配位球中的溴化物、三苯基膦,甚至菲咯啉配体。即使在 CH2Cl2 和 CHCl3 等非配位溶剂中,铜 (I) 与 α-取代的菲咯啉的配合物也很容易解离。在使用的溶液条件下观察到导致较少空间位阻物种的配体交换反应。菲咯啉螯合剂的配位模式在任何使用的溶液条件下都不会改变,并
Palladium-Catalyzed Synthesis of Mono- and Diphosphorylated 1,10-Phenanthrolines
Abstract A general protocol for the coupling of mono- and dihalo-1,10-phenanthrolines with diethyl phosphite is reported. This reaction proceeds smoothly in the presence of a Pd(OAc)2/dppf catalytic system and triethylamine as a base. A general protocol for the coupling of mono- and dihalo-1,10-phenanthrolines with diethyl phosphite is reported. This reaction proceeds smoothly in the presence of a
Copper(<scp>ii</scp>) complexes with phosphorylated 1,10-phenanthrolines: from molecules to infinite supramolecular arrays
作者:Alexander Yu. Mitrofanov、Yoann Rousselin、Roger Guilard、Stéphane Brandès、Alla G. Bessmertnykh-Lemeune、Marina A. Uvarova、Sergey E. Nefedov
DOI:10.1039/c5nj03572d
日期:——
Supramolecular architectures based on copper(ii) complexes with diethoxyphosphoryl substituted 1,10-phenanthrolines are reported.
报道了基于含二乙氧基磷酰基取代的1,10-菲咯啉的铜(II)配合物的超分子结构。
Ruthenium(<scp>ii</scp>) complexes with phosphonate-substituted phenanthroline ligands: synthesis, characterization and use in organic photocatalysis
作者:Gleb V. Morozkov、Anton S. Abel、Mikhail A. Filatov、Sergei E. Nefedov、Vitaly A. Roznyatovsky、Andrey V. Cheprakov、Alexander Yu. Mitrofanov、Ilia S. Ziankou、Alexei D. Averin、Irina P. Beletskaya、Julien Michalak、Christophe Bucher、Laurent Bonneviot、Alla Bessmertnykh-Lemeune
DOI:10.1039/d2dt01364a
日期:——
Ru(II) complexes with polypyridyl ligands play a central role in the development of photocatalytic organic reactions. This work is aimed at the structural modification of such complexes to increase their photocatalytic efficiency and adapt them for the preparation of reusable photocatalytic systems. Nine [Ru(phen)(bpy)2]2+-type complexes (bpy = 2,2′-bipyridine, phen = 1,10-phenanthroline) (Ru-Pcat)
Supramolecular Architectures Based on Phosphonic Acid Diesters
作者:Alla Lemeune、Alexander Yu. Mitrofanov、Yoann Rousselin、Christine Stern、Roger Guilard、Yulia Yu. Enakieva、Yulia G. Gorbunova、Sergey E. Nefedov
DOI:10.1080/10426507.2014.985823
日期:2015.6.3
GRAPHICAL ABSTRACT Abstract The interest of phosphonicacid dialkyl esters for generation of metal-organic materials is discussed using derivatives of porphyrin and 1,10-phenanthroline series as representative examples.