Photochemical energy conversion in a helical oligoproline assembly.
收藏PubMed Central1996-08-06 更新2026-05-02 收录
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https://pmc.ncbi.nlm.nih.gov/articles/PMC38646/
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资源简介：
A general method is described for constructing a helical oligoproline assembly having a spatially ordered array of functional sites protruding from a proline-II helix. Three different redox-active carboxylic acids were coupled to the side chain of cis-4-amino-L-proline. These redox modules were incorporated through solid-phase peptide synthesis into a 13-residue helical oligoproline assembly bearing in linear array a phenothiazine electron donor, a tris(bipyridine)ruthenium(II) chromophore, and an anthraquinone electron acceptor. Upon transient 460-nm irradiation in acetonitrile, this peptide triad formed with 53% efficiency an excited state containing a phenothiazine radical cation and an anthraquinone radical anion. This light-induced redox-separated state had a lifetime of 175 ns and stored 1.65 eV of energy. IMAGES:
提供机构：
National Academy of Sciences
创建时间：
1996-08-06
