具有宽光谱且强吸收的环金属钌配合物的合成
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- 英文论文题名：Synthesis of a cyclometallated ruthenium complex with wide and strong absorptions
- 论文作者：李青 ; 苏显龙 ; 李襄宏 ; 谢超异 ; 曾榕清
- 英文论文作者：Qing Li ; Xianlong Su ; Xianghong Li ; College of Chemistry and Materials Science ; South-Central University for Nationalities
- 年：2016
- 作者机构：中南民族大学化学与材料科学学院;
- 论文关键词：环金属钌配合物 ; 染料敏化剂 ; 香豆素 ; 吸收光谱
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十七分会：光化学
- 语种：中文
- 分类号：O641.4
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十七分会 ; 光化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：334k
- 原文格式：D
- 会议级别：全国
摘要
自2009年Gr?tzel报道了一类不含NCS~-的环金属钌配合物作为染料敏化剂获得超过10%的光电转化效率以来,Ru-C^N环金属钌配合物因其比传统Ru-N^N联吡啶配合物的吸收红移而在染料敏化太阳能电池领域受到广泛关注1-3。本文合成了含有香豆素结构且以4,4’-二甲酯-2,2’-二联吡啶为N^N-配体的环金属钌配合物。其在470 nm处的摩尔消光系数接近70000 M-1cm-1。将其水解后,其在可见光区400-570 nm范围内吸收的摩尔消光系数超过20000 M-1cm-1,在600 nm处吸收的摩尔消光系数仍然接近10000 M-1cm-1(如Figure 1所示)。该配合物表现出的优良的可见光区强吸收性质显示其作为染料敏化剂的潜在优势。
Cycloruthenated polypyridyl complexes are recently concerned in dye-sensitized solar cells because of their absorptions shifted to long-wavelength region. Herein, a new cyclometallated ruthenium complex containing coumarin group was synthesized. The complex exhibited wide and strong absorptions with the molar extinction coefficient close to 70000 M~(-1)cm~(-1) at 470 nm. After hydrolysis, the coefficients of the complex were observed above 20000 M~(-1)cm~(-1) in the range from 400 to 570 nm, which indicated its potential application as sensitizer.
Cycloruthenated polypyridyl complexes are recently concerned in dye-sensitized solar cells because of their absorptions shifted to long-wavelength region. Herein, a new cyclometallated ruthenium complex containing coumarin group was synthesized. The complex exhibited wide and strong absorptions with the molar extinction coefficient close to 70000 M~(-1)cm~(-1) at 470 nm. After hydrolysis, the coefficients of the complex were observed above 20000 M~(-1)cm~(-1) in the range from 400 to 570 nm, which indicated its potential application as sensitizer.
引文
[1]Bessho T.;Yoneda E.;Yum,J.-H.;Guglielmi,M.;Tavernelli,I.;Imai,H.;Rothlisberger,U.;Nazeeruddin,M.K.;Gr?tzel,M.J.Am.Chem.Soc.2009,131:5930.
[2]Bomben P.G.;Robson,K.C.D.;Koivisto,B.D.;Berlinguette,C.P.Coord.Chem.Rev.2012,256:1438.
[2]Bomben P.G.;Robson,K.C.D.;Koivisto,B.D.;Berlinguette,C.P.Coord.Chem.Rev.2012,256:1438.