Guanine quartet networks stabilized by cooperative hydrogen bonds

被引:255
作者
Otero, R
Schöck, M
Molina, LM
Lægsgaard, E
Stensgaard, I
Hammer, B
Besenbacher, F [1 ]
机构
[1] Aarhus Univ, INANO, DK-8000 Aarhus, Denmark
[2] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus, Denmark
关键词
hydrogen bonds; nucleic acids; nucleobases; scanning probe microscopy; self-assembly;
D O I
10.1002/anie.200461586
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) String quartets: Guanine molecules self-assemble into a hydrogen-bonded network of G quartets upon deposition under ultrahigh vacuum conditions onto Au(111) surfaces as shown by STM (see picture). The resilience of the H-bonded network (stable up to 400 K) is explained through a cooperative increase in the strength of H-bonds between guanine molecules in a quartet. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:2270 / 2275
页数:6
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