Electronic: Excitation Energy Transfer between Nucleobases of Natural DNA

被引：58

作者：

Vaya, Ignacio ^{[1
]}

Gustavsson, Thomas ^{[1
]}

Douki, Thierry ^{[2
,3
,4
]}

Berlin, Yuri ^{[5
]}

Markovitsi, Dimitra ^{[1
]}

机构：

[1] CNRS, IRAMIS, SPAM, Lab Francis Perrin,URA 2453, F-91191 Gif Sur Yvette, France

[2] UJF, CEA, INAC, SCIB, F-38054 Grenoble 9, France

[3] UJF, CEA, CNRS, LCIB,UMR E 3, F-38054 Grenoble 9, France

[4] Lab Les Acides Nucl, FRE 3200, F-38054 Grenoble 9, France

[5] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 28期

关键词：

EXCITED-STATE DYNAMICS; FLUORESCENCE; FEMTOSECOND; TRANSITIONS; SEQUENCE; GUANINE; BRIGHT; BASES;

D O I：

10.1021/ja304328g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Transfer of the electronic excitation energy in calf thymus DNA is studied by time-resolved fluorescence spectroscopy. The fluorescence anisotropy, after an initial decay starting on the femtosecond time scale, dwindles down to ca. 0.1. The in-plane depolarized fluorescence decays are described by a stretched exponential law. Our observations are consistent with one-dimensional transfer mediated by charge-transfer excited states.

引用

页码：11366 / 11368

页数：3

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