Are adenine strands helical H-aggregates?

被引：24

作者：

Hu, LiHong ^{[1
]}

Zhao, Yang ^{[1
]}

Wang, Fan ^{[1
]}

Chen, GuanHua ^{[1
]}

Ma, Chensheng ^{[1
]}

Kwok, Wai-Ming ^{[1
]}

Phillips, David Lee ^{[1
]}

机构：

[1] Univ Hong Kong, Ctr Theoret & Computat Phys, Dept Chem, Hong Kong, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2007年 / 111卷 / 40期

关键词：

D O I：

10.1021/jp070403m

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

On the basis of our quantum mechanical calculation, we propose that homogeneous single-stranded adenine bases (Ade-DNA) form helical H aggregates, and the photoexcited states can be described as Frenkel excitons. The calculated excitonic coupling between adjacent transition dipoles is in good agreement with the measured absorption spectrum of 20-base homogeneous adenine stacks that exhibits a blue shift of 2.6 nm relative to that of the monomeric species.

引用

页码：11812 / 11816

页数：5

共 55 条

[1] Charge migration in DNA: Ion-gated transport [J].

Barnett, RN ;

Cleveland, CL ;

Joy, A ;

Landman, U ;

Schuster, GB .

SCIENCE, 2001, 294 (5542) :567-571

[2] Lattice theory of ultrafast excitonic and charge-transfer dynamics in DNA [J].

Bittner, Eric R. .

JOURNAL OF CHEMICAL PHYSICS, 2006, 125 (09)

[3] Electron interactions between nucleoside pairs in canonical B-DNA: I. Transfer integrals [J].

Brunaud, G ;

Castet, F ;

Fritsch, A ;

Kreissler, M ;

Ducasse, L .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (50) :12665-12673

[4] POLARIZATION OF EXCIMER FLUORESCENCE FROM A DINUCLEOTIDE [J].

CALLIS, PR .

CHEMICAL PHYSICS LETTERS, 1973, 19 (04) :551-555

[5] Stark spectroscopy of size-selected helical H-aggregates of a cyanine dye templated by duplex DNA. Effect of exciton coupling on electronic polarizabilities [J].

Chowdhury, A ;

Yu, LP ;

Raheem, I ;

Peteanu, L ;

Liu, LA ;

Yaron, DJ .

JOURNAL OF PHYSICAL CHEMISTRY A, 2003, 107 (18) :3351-3362

[6] Electronic excitations in aggregates of bacteriochlorophylls [J].

Cory, MG ;

Zerner, MC ;

Xu, XC ;

Shulten, K .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (39) :7640-7650

[7] Molecular spectroscopy:: Complexity of excited-state dynamics in DNA -: Reply [J].

Crespo-Hernandez, Carlos E. ;

Cohen, Boiko ;

Kohler, Bern .

NATURE, 2006, 441 (7094) :E8-E8

[8] Ultrafast excited-state dynamics in nucleic acids [J].

Crespo-Hernández, CE ;

Cohen, B ;

Hare, PM ;

Kohler, B .

CHEMICAL REVIEWS, 2004, 104 (04) :1977-2019

[9] Base stacking controls excited-state dynamics in A-T DNA [J].

Crespo-Hernández, CE ;

Cohen, B ;

Kohler, B .

NATURE, 2005, 436 (7054) :1141-1144

[10] Influence of secondary structure on electronic energy relaxation in adenine homopolymers [J].

Crespo-Hernández, CE ;

Kohler, B .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (30) :11182-11188

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