Strongly Coupled Cyclometalated Ruthenium Triarylamine Chromophores as Sensitizers for DSSCs
作者:Christoph Kreitner、Andreas K. C. Mengel、Tae Kyung Lee、Woohyung Cho、Kookheon Char、Yong Soo Kang、Katja Heinze
DOI:10.1002/chem.201601001
日期:2016.6.20
cyclometalated bis(tridentate) ruthenium(II) triarylamine hybrids [Ru(dbp‐X)(tctpy)]2− [2 a]2−–[2 c]2− (H3tctpy=2,2′;6′,2′′‐terpyridine‐4,4′,4′′‐tricarboxylic acid; dpbH=1,3‐dipyridylbenzene; X=N(4‐C6H4OMe)2 ([2 a]2−), NPh2 ([2 b]2−), N‐carbazolyl [2 c]2−) was synthesized and characterized. All complexes show broad absorption bands in the range 300–700 nm with a maximum at about 545 nm. Methyl esters [Ru(Me3tctpy)(dpb‐X)]+
一系列锚固官能化的环金属化双(三齿)钌(II)三芳基胺杂化物[Ru(dbp‐X)(tctpy)] 2− [ 2 a ] 2− – [ 2 c ] 2−(H 3 tctpy = 2, 2′; 6′,2′′-叔吡啶-4,4′,4′′-三羧酸; dpbH = 1,3-二吡啶基苯; X = N(4-C 6 H 4 OMe)2([ 2 a ] 2−),NPh 2([ 2 b ] 2−),N-咔唑基[ 2 c ] 2−)进行了合成和表征。所有复合物均显示300-700 nm范围内的宽吸收带,最大吸收带约为545 nm。甲酯[Ru(Me 3 tctpy)(dpb-X)] + [ 1 a ] + – [ 1 c ] +被氧化成强耦合的混合价种[ 1 a ] 2+ – [ 1 c ] 2+和Ru III(铵)配合物[ 1 a ] 3+ – [ 1 c ] 3+在较低的氧化电位下 理论计算表明,金属中心和三芳基胺单元之间的自旋离域增加,顺序为[