摘要
合成了2个新的含1,3,4-噁二唑官能团的联吡啶配体及其相应的钌髤配合物Ru(CPOD)(dcbpy)(NCS)2(Ru-1)和Ru(DPOD)(dcbpy)(NCS)2(Ru-2)(CPOD=4-羧基-4′-[2-(4-壬氧基苯基)-5-苯基-1,3,4-噁二唑]-2,2′-二联吡啶,DPOD=4,4′-二[2-(4-壬氧基苯基)-5-苯基-1,3,4-噁二唑]-2,2′-二联吡啶,dcbpy=4,4′-二羧基-2,2′-二联吡啶),并通过红外光谱、循环伏安、紫外可见吸收光谱、元素分析和光电流-光电压曲线实验对其结构和光电转化性质进行了表征。这些配合物的最大MLCT态吸收位于555nm,摩尔消光系数可达1.43×104L·mol-1·cm-1。它们的光化学和电化学性质表明:激发态能级与TiO2导带底能级匹配,电子能够注入到TiO2导带中。将它们敏化到纳米晶TiO2电极上,光电转化效率为2.4%。
Two new amphiphilic ruthenium complexes with new bipyridyl ligands,Ru（CPOD）（dcbpy）（NCS）2（Ru-1） and Ru（DPOD）（dcbpy）（NCS）2 （Ru-2） （CPOD=4-carboxy-4＇-[2-（4-nonyloxyphenyl）-5-phenyl-oxadiazoyl]-2,2＇-bipyridine,DPOD =4,4＇ -di [2-（4-nonyloxyphenyl）-5-phenyl-1,3,4-oxadiazoyl]-2,2＇ -bipyridine,dcbpy =4,4＇ -dicarboxy-2,2＇-bipyridine）,were synthesized and characterized by IR spectra,cyclic voltammetry,UV-Vis spectra,elemental analysis and I-V curves. They exhibit good MLCT absorptions and high molar extinction coefficients （～ 1.43×10^4L·mol^-1·cm^-1 at 555 nm）. The spectroscopic and electrochemical measurements show that the excited states of these complexes match the conduction band of titanium dioxide. They were used as sensitzers for dye-sensitized solar cells and their photoelectric conversion efficiencies are nearly 2.4%.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2010年第8期1389-1393,共5页
Chinese Journal of Inorganic Chemistry
基金
湖北省自然科学基金(No.BZY09008)
中南民族大学自然科学基金(No.YZZ06022)项目资助
关键词
噁二唑官能团
两亲性钌(Ⅱ)联吡啶配合物
光电转化
oxadiazole moieties
amphiphilic polypyridyl ruthenium（Ⅱ） complexes
photoelectric conversion
