Synthesis of a macrocyclic porphyrin hexamer with a nanometer-sized cavity as a model for the light-harvesting arrays of purple bacteria

被引：91

作者：

Mongin, O ^{[1
]}

Schuwey, A ^{[1
]}

Vallot, MA ^{[1
]}

Gossauer, A ^{[1
]}

机构：

[1] Univ Fribourg, Inst Organ Chem, CH-1700 Fribourg, Switzerland

来源：

TETRAHEDRON LETTERS | 1999年 / 40卷 / 48期

关键词：

D O I：

10.1016/S0040-4039(99)01787-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The synthesis of a cyclic hexaporphyrin array with an integral acceptor chromophore, mimicking the light-harvesting complex of photosynthetic purple bacteria, is described. The cavity of this hexagonal macrocycle, which is circumscribed by five porphyrin rings, as Zn(II) chelates, and one porphyrin ring, as free base, has a diameter of about 4.6 nm. The quantum efficiency of intramolecular transfer of singlet excited-state energy determined by comparison with a solution of a mixture of the corresponding porphyrin monomers in a 5:1 ratio amounts to 40 %. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：8347 / 8350

页数：4

共 22 条

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