无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2010年
8期
1389-1393
,共5页
噁二唑官能团%两亲性钌(Ⅱ)联吡啶配合物%光电转化
噁二唑官能糰%兩親性釕(Ⅱ)聯吡啶配閤物%光電轉化
오이서관능단%량친성조(Ⅱ)련필정배합물%광전전화
oxadiazole moieties%amphiphilic polypyridyl ruthenium(Ⅱ) complexes%photoelectric conversion
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(Ⅱ)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555 nm,摩尔消光系数可达1.43×104 L·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%.
閤成瞭2箇新的含1,3,4-噁二唑官能糰的聯吡啶配體及其相應的釕(Ⅱ)配閤物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′-二聯吡啶, DPOD =4,4′-二[2-(4-壬氧基苯基)-5-苯基-1,3,4-噁二唑]-2,2′-二聯吡啶,dcbpy=4,4′-二羧基-2,2′-二聯吡啶),併通過紅外光譜、循環伏安、紫外可見吸收光譜、元素分析和光電流-光電壓麯線實驗對其結構和光電轉化性質進行瞭錶徵.這些配閤物的最大MLCT態吸收位于555 nm,摩爾消光繫數可達1.43×104 L·mol-1·cm-1.它們的光化學和電化學性質錶明:激髮態能級與TiO2導帶底能級匹配,電子能夠註入到TiO2導帶中.將它們敏化到納米晶TiO2電極上,光電轉化效率為2.4%.
합성료2개신적함1,3,4-오이서관능단적련필정배체급기상응적조(Ⅱ)배합물Ru(CPOD)(dcbpy)(NCS)2(Ru-1)화Ru(DPOD)(dcbpy)(NCS)2(Ru-2)(CPOD=4-최기-4′-[2-(4-임양기분기)-5-분기-1,3,4-오이서]-2,2′-이련필정, DPOD =4,4′-이[2-(4-임양기분기)-5-분기-1,3,4-오이서]-2,2′-이련필정,dcbpy=4,4′-이최기-2,2′-이련필정),병통과홍외광보、순배복안、자외가견흡수광보、원소분석화광전류-광전압곡선실험대기결구화광전전화성질진행료표정.저사배합물적최대MLCT태흡수위우555 nm,마이소광계수가체1.43×104 L·mol-1·cm-1.타문적광화학화전화학성질표명:격발태능급여TiO2도대저능급필배,전자능구주입도TiO2도대중.장타문민화도납미정TiO2전겁상,광전전화효솔위2.4%.
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 (～1.43×104 L·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%.
