electrodes modifiedchemically with self-assembled monolayers (SAMs) of porphyrins and porphyrin-fullerene dyads have been designed to provide valuable insight into the development of artificial photosynthetic devices. First the ITO and gold electrodes modifiedchemically with SAMs of porphyrins with a spacer of the same number of atoms were prepared to compare the effects of energy transfer (EN) quenching
已经设计了一系列系统的 ITO 电极,这些电极用卟啉和卟啉-富勒烯二元组的自组装单层 (SAM) 进行化学修饰,旨在为人工光合装置的发展提供有价值的见解。首先,制备用具有相同原子数的间隔物的卟啉的 SAM 进行化学修饰的 ITO 和金电极,以比较两个电极对卟啉激发单线态的能量转移 (EN) 淬灭的影响。与相应的金电极上的 EN 淬灭相比,在 ITO 电极上观察到的 EN 淬灭更少,导致在三乙醇胺存在下,ITO 电极上的卟啉 SAM 的光电流产生显着增强(约 280 倍)( TEA)用作牺牲电子供体。然后将卟啉 (H(2)P) 与 C(60) 连接起来,C(60) 可以作为电子受体在存在己基紫精 (HV(2+) 的情况下在 ITO 表面构建 H(2)PC(60) SAM )) 在三电极系统中用作电子载体,表示为 ITO/H(2)PC(60)/HV(2+)/Pt。ITO/H(2)PC(60)/HV(2+)/Pt体系(6
Visible light-harvesting in covalently-linked porphyrin-cyanine dyes
作者:Jonathan S. Lindsey、Philip A. Brown、David A. Siesel
DOI:10.1016/s0040-4020(01)85156-5
日期:1989.1
We report the synthesis and properties of three members of a new class of photochemical model compounds containing a covalently-linked porphyrin and a cyanine dye. In compounds 1 and 2 the dye absorbs in the 450–570 nm region and energy transfer occurs with 80% efficiency from the dye to the free base porphyrin. In compound 3 the dye absorbs in the 650–780 nm region and energy transfer occurs with
Sequential Energy and Electron Transfer in an Artificial Reaction Center: Formation of a Long-Lived Charge-Separated State
作者:C. Luo、D. M. Guldi、H. Imahori、K. Tamaki、Y. Sakata
DOI:10.1021/ja993959z
日期:2000.7.1
A novel molecular triad, representing an artificial reactioncenter, was synthesized via linking a fullerene moiety to an array of two porphyrins (i.e., a zinc tetraphenyl porphyrin (ZnP) and a free base tetraphenyl porphyrin (H2P)). In this ZnP−H2P−C60 triad, the ZnP performs as an antenna molecule, transferring its singlet excited state energy to the energetically lower lying H2P. In benzonitrile
A self-assembled monolayer of a ferroceneâporphyrinâC60 triad has been prepared to mimic efficient vectorial electron transport across a photosynthetic membrane.
我们制备了二茂铁卟啉和 C60 三元组的自组装单层,以模拟光合膜上高效的矢量电子传输。
Quadruple Switching of Pleated Foldamers of Tetrathiafulvalene-Bipyridinium Alternating Dynamic Covalent Polymers
作者:Lan Chen、Hui Wang、Dan-Wei Zhang、Yaming Zhou、Zhan-Ting Li
DOI:10.1002/anie.201410757
日期:2015.3.23
Two dynamic covalent polymers P1 and P2 were prepared by alternately linking electron‐rich tetrathiafulvalene (TTF) and electron‐deficient bipyridinium (BIPY2+) through hydrazone bonds. In acetonitrile, the polymers were induced by intramolecular donor–acceptor interactions to form pleated foldamers, which unfolded upon oxidation of the TTF units to the radicalcation TTF.+. Reduction of the BIPY2+