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Guanine Quartet Networks Stabilized by Cooperative Hydrogen Bonds
Author(s) -
Otero Roberto,
Schöck Maya,
Molina Luis M.,
Lægsgaard Erik,
Stensgaard Ivan,
Hammer Bjørk,
Besenbacher Flemming
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200461586
Subject(s) - guanine , hydrogen bond , molecule , string (physics) , deposition (geology) , chemistry , crystallography , hydrogen , nanotechnology , chemical physics , materials science , physics , theoretical physics , biology , organic chemistry , biochemistry , nucleotide , paleontology , sediment , gene
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.