Charge transfer properties of a donor-acceptor dyad based on an expanded acridinium cation

被引：3

作者：

Benniston, Andrew C. ^{[1
]}

He, Xiaoyan ^{[1
]}

Lemmetyinen, Helge ^{[2
]}

Tkachenko, Nikolai V. ^{[2
]}

机构：

[1] Newcastle Univ, Sch Chem, Mol Photon Lab, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[2] Tampere Univ Technol, Dept Chem & Bioengn, FIN-33101 Tampere, Finland

来源：

RSC ADVANCES | 2013年 / 3卷 / 15期

基金：

英国工程与自然科学研究理事会;

关键词：

PHOTOINDUCED ELECTRON-TRANSFER; RECOMBINATION; FLUORESCENCE; SUPEREXCHANGE; STATES;

D O I：

10.1039/c3ra22813d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photophysical properties of a donor-acceptor dyad are discussed, which is based on an N, N-dimethylaniline subunit connected to an expanded acridinium cation. Ground-state charge transfer results in the appearance of a moderately intense absorption band in the visible region. The peak maximum shifts to shorter wavelength (higher energy) with an increase in solvent polarity. Excitation of the compound in MeCN or DCE results in ultrafast (<1 ps) charge shift to place positive charge on the N, N-dimethylaniline, and is followed by the charge recombination in the 10-200 ps time domain.

引用

页码：4995 / 5002

页数：8

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