A molecular tetrad allowing efficient energy storage for 1.6 s at 163 K

被引：171

作者：

Guldi, DM ^{[1
]}

Imahori, H

Tamaki, K

Kashiwagi, Y

Yamada, H

Sakata, Y

Fukuzumi, S

机构：

[1] Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA

[2] Kyoto Univ, PRESTO, JST, Grad Sch Engn,Dept Mol Engn,Nishikyo Ku, Kyoto 6158510, Japan

[3] Kyoto Univ, Fukui Inst Fundamental Chem, Sakyo Ku, Kyoto 6068103, Japan

[4] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan

[5] Osaka Univ, Grad Sch Engn, Dept Mat & Life Sci, CREST,JST, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2004年 / 108卷 / 04期

基金：

美国国家航空航天局; 美国国家卫生研究院;

关键词：

D O I：

10.1021/jp036382n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In a novel molecular ferrocene-zinc porphyrin-zinc porphyrin-fullerene (Fc-ZnP-ZnP-C-60) tetrad, the longest lifetime of a charge-separated state ever reported in an artificial photosynthetic reaction center (1.6 s in DMF at 163 K) has been attained. This lifetime is comparable, for example, to the lifetime (similar to1 s) of the bacteriochlorophyll dimer radical cation ((Bchl)(2)(.+))-secondary quinone radical anion (Q(B)(.-)) ion pair in the bacterial photosynthetic reaction centers. The present far distant radical ion pair is formed with a quantum yield of 34%. The radical ion pair Fc(+)-ZnP-ZnP-C-60(.-) produced by photoinduced electron transfer was detected by means of transient absorption spectra as well as ESR spectra. Both the lifetime and the quantum yield of the final charge-separated state are improved in Fc-ZnP-ZnP-C-60 relative to the corresponding ferrocene-zinc porphyrin-free base porphyrin-fullerene (Fc-ZnP-H2P-C-60) tetrad.

引用

页码：541 / 548

页数：8

共 60 条

[11] Self-assembled porphyrin-C60 and porphycene-C60 complexes via metal axial coordination [J].