Synthesis, structure and properties of [Pt(2,2′-bipyridyl-5,5′-dicarboxylic acid)(3,4-toluenedithiolate)]: tuning molecular properties for application in dye-sensitised solar cells
作者:Elaine A. M. Geary、Narukuni Hirata、John Clifford、James R. Durrant、Simon Parsons、Alice Dawson、Lesley J. Yellowlees、Neil Robertson
DOI:10.1039/b306241d
日期:——
The platinum diimine dithiolate complex, [Pt(2,2′-bipyridyl-5,5′-dicarboxylicacid)(3,4-toluenedithiolate)] ([Pt(5,5′-dcbpy)(tdt)]) and its tetrabutylammonium salt [TBA]2[Pt(5,5′-dcbpy)(tdt)] have been prepared, spectroscopically and electrochemically characterised and attached on to TiO2 substrate to be used as solar cell sensitisers. A single-crystal X-ray structure was obtained for [TBA]2[Pt(5,5
铂二亚胺二硫醇盐络合物,[Pt(2,2'-联吡啶-5,5'-二羧酸)(3,4-甲苯二硫醇盐)] [[Pt(5,5'-dcbpy)(tdt)])及其已经制备了四丁基铵盐[TBA] 2 [Pt(5,5'-dcbpy)(tdt)],对其进行了光谱和电化学表征,并将其附着在TiO 2衬底上以用作太阳能电池敏化剂。对于[TBA] 2 [Pt(5,5'-dcbpy)(tdt)]·EtOH·EtOAc ,获得了单晶X射线结构。两者位置的影响羧酸与先前报道的[Pt(4,4'-dcbpy)(tdt)]相比,讨论了5,5'-双取代配合物的电化学取代基。电化学研究表明,HOMO运动后,HOMO没有重大变化。羧酸基团,与HOMO的分配主要基于二硫醇盐基一致。运动的羧酸基团使二亚胺的电子特性和复合物的LUMO有所不同。电化学研究表明,LUMO的降低代表了能量的降低。减少 化合物在移动中的潜力 羧酸从4,4'到5,5'的位置代替。[Pt(5