Synthesis of multi-porphyrin dendrimer as artificial light-harvesting antennae

被引：17

作者：

Jang, Woo-Dong ^{[1
]}

Lee, Chi-Hwa ^{[1
]}

Choi, Myung-Seok ^{[2
]}

Osada, Makiko ^{[3
]}

机构：

[1] Yonsei Univ, Dept Chem, Coll Sci, Seoul 120749, South Korea

[2] Konkuk Univ, Coll Engn, Dept Chem & Mat Engn, Seoul 143701, South Korea

[3] Tokyo Univ Sci, Dept Ind Chem, Fac Engn, Shinjuku Ku, Tokyo 1628601, Japan

来源：

JOURNAL OF PORPHYRINS AND PHTHALOCYANINES | 2009年 / 13卷 / 07期

关键词：

dendrimer; energy transfer; artificial light harvesting; ENERGY-TRANSFER; MULTIPORPHYRIN ARRAYS; MOLECULAR DESIGN; PENTAMERS; COMPLEX;

D O I：

10.1142/S1088424609000966

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To mimic bacterial light-harvesting antenna complexes, a series of dendritic multi porphyrin arrays, nP(Zn)-P-FB (n = 2, 4; cone-shaped dendrimers, n = 8, 16; star-shaped dendrimers), were synthesized and characterized by H-1 NMR and MALDI-TOF-MS spectroscopy. Photoinduced energy-transfer efficiency (F ET) from peripheral Zn porphyrin (P-Zn) units to an inner core free-base porphyrin (P-FB) in the dendrimers was evaluated by fluorescence measurement. Both star-and cone-shaped multi-porphyrin arrays exhibited significantly high efficiency energy transfer from the photoexcited P-Zn units to the energy-accepting P-FB, where the star-shaped dendrimers, 8P(Zn)-P-FB (94%) and 16P(Zn)-P-FB (88%), had a slightly higher efficiency than those of the cone-shaped dendrimers, 2P(Zn)-P-FB (92%) and 4P(Zn)-P-FB (80%), respectively.

引用

页码：787 / 793

页数：7

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