Prochiral Guanine Adsorption on Au(111): An Entropy‐Stabilized Intermixed Guanine‐Quartet Chiral Structure | Zendy

Xu Wei | Zendy; Kelly Ross E. A. | Zendy; Gersen Henkjan | Zendy; Lægsgaard Erik | Zendy; Stensgaard Ivan | Zendy; Kantorovich Lev N. | Zendy; Besenbacher Flemming | Zendy

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Prochiral Guanine Adsorption on Au(111): An Entropy‐Stabilized Intermixed Guanine‐Quartet Chiral Structure

Author(s) -

Xu Wei,

Kelly Ross E. A.,

Gersen Henkjan,

Lægsgaard Erik,

Stensgaard Ivan,

Kantorovich Lev N.,

Besenbacher Flemming

Publication year - 2009

Publication title -

small

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.785

H-Index - 236

eISSN - 1613-6829

pISSN - 1613-6810

DOI - 10.1002/smll.200900315

Subject(s) - guanine , annealing (glass) , adsorption , chemistry , molecule , crystallography , entropy (arrow of time) , stereochemistry , materials science , physics , organic chemistry , thermodynamics , biochemistry , nucleotide , gene

Guanine molecules adsorbed on the Au(111) surface at room temperature are observed to form a heterochiral phase consisting of two homochiral G‐quartet networks (see image, left). By annealing the sample at 400 K the R and L homochiral G‐quartet networks are found to irreversibly transform to a heterochiral G‐quartet network including both R and L G‐quartets in an equal amount (see image, right).

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