ULTRAFAST PHOTOINDUCED ELECTRON-TRANSFER REACTIONS IN SUPRAMOLECULAR ARRAYS - FROM CHARGE SEPARATION AND STORAGE TO MOLECULAR SWITCHES

被引：25

作者：

WASIELEWSKI, MR

ONEIL, MP

GOSZTOLA, D

NIEMCZYK, MP

SVEC, WA

机构：

[1] Chemistry Division, Argonne National Laboratory, Argonne, Illinois

来源：

PURE AND APPLIED CHEMISTRY | 1992年 / 64卷 / 09期

关键词：

D O I：

10.1351/pac199264091319

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N'-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.

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页码：1319 / 1325

页数：7

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