Architecture of Supramolecular Metal Complexes for Photocatalytic CO<sub>2</sub> Reduction: Ruthenium−Rhenium Bi- and Tetranuclear Complexes
作者:Bobak Gholamkhass、Hiroaki Mametsuka、Kazuhide Koike、Toyoaki Tanabe、Masaoki Furue、Osamu Ishitani
DOI:10.1021/ic048779r
日期:2005.4.1
improved photocatalytic activities were obtained only in the cases of [RubpyC3bpyRe(CO)3Cl}3]2+ (RuRe3) and the binuclear complex [(dmb)2Ru(bpyC3bpy)Re(CO)3Cl]2+ (d2Ru-Re), while photocatalytic responses were extended further into the visible region. The excited state of ruthenium in all Ru-Re complexes was efficiently quenched by 1-benzyl-1,4-dihydronicotinamide (BNAH). Following reductive quenching
我们研究了通过桥接配体1,3-双(4'-甲基-[2,2'] bipyridinyl-4- yl)丙-2-醇(bpyC3bpy)和4-甲基-4'-[1,10]菲咯啉-[5,6-d]咪唑-2-基)联吡啶(mfibpy)和四核配合物,其中三个[使用bpyC3bpy配体将Re(CO)3Cl]部分与中心Ru配位。在bpyC3bpy双核复合物中,4,4'-二甲基-2,2'-联吡啶(dmb)和4,4'-双(三氟甲基)-2,2'-联吡啶(CF3} 2bpy)以及2 ,2'-联吡啶(bpy)用作Ru部分上的外围配体。仅在[Ru bpyC3bpyRe(CO)3Cl} 3] 2+(RuRe3)和双核络合物[(dmb)2Ru(bpyC3bpy)Re(CO)3Cl] 2+(d2Ru-回覆),而光催化反应则进一步扩展到可见光区域。所有Ru-Re络合物中钌的激发态都可以通过1-苄基-1,4-二氢烟酰胺(BNAH)有