期刊
TETRAHEDRON
卷 66, 期 30, 页码 5549-5565出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2010.05.059
关键词
Artificial photosynthesis; Porphyrin; Building block; Array; Electron transfer; Energy transfer; Hole transfer; Thallium; Zinc; Free base; Suzuki; Sonogashira
资金
- Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-FG02-96ER14632]
- North Carolina Biotechnology Center
- National Science Foundation
A series of (p-phenylene)(n)-linked meso-mesityl-substituted porphyrin dyads (n=2-4) was prepared via Suzuki coupling of zinc(II) and free base porphyrin building blocks. The resulting zinc(II)/free base porphyrin dyads were demetalated. The series of free base porphyrin dimers (n=1-4), four other porphyrin dimers (with p-phenylene, diphenylethyne or diphenylbutadiyne linkers; and aryl or tridec-7-yl meso substituents), and several benchmark monomers were converted to the thallium(III)chloride complexes under mild conditions. The collection of eight Tl(III)Cl/Tl(III)Cl dimers is designed for studies of ground-state hole-transfer processes and comparison with the excited-state energy- and hole-transfer processes of the corresponding Zn(II)/free base dyads. Altogether, 18 new porphyrin arrays and benchmark monomers have been prepared. (C) 2010 Elsevier Ltd. All rights reserved.
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