Coadsorption of Guanine and Cytosine on Graphite:  Ordered Structure Based on GC Pairing

Xu, Sailong; Dong, Mingdong; Rauls, E.; Otero, Roberto; Linderoth, Trolle R.; Besenbacher, Flemming

doi:10.1021/nl060563u

Cited by 92 publications

(98 citation statements)

References 46 publications

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“…[20] In the recent years, a number of groups have carried out studies on how different nucleobases and nucleobase pairs self-assemble on a surface. [21,[31][32][33] The molecular self-assembly involving adsorption of nucleic acid bases on a graphite surface has been characterized by different spectroscopic techniques. The nucleobases self-assemble to form monolayers that are stabilized by hydrogen bonds.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanotube–Nucleobase Hybrids: Nanorings from Uracil‐Modified Single‐Walled Carbon Nanotubes

Singh

Toma

Kumar

et al. 2011

Chemistry A European J

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Single-walled carbon nanotubes (SWCNTs) have been covalently functionalized with uracil nucleobase. The hybrids have been characterized by using complementary spectroscopic and microscopic techniques including solid-state NMR spectroscopy. The uracil-functionalized SWCNTs are able to self-assemble into regular nanorings with a diameter of 50-70 nm, as observed by AFM and TEM. AFM shows that the rings do not have a consistent height and thickness, which indicates that they may be formed by separate bundles of CNTs. The simplest model for the nanoring formation likely involves two bundles of CNTs interacting with each other via uracil-uracil base-pairing at both CNT ends. These nanorings can be envisaged for the development of advanced electronic circuits.

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Section: Introductionmentioning

confidence: 99%

Carbon Nanotube–Nucleobase Hybrids: Nanorings from Uracil‐Modified Single‐Walled Carbon Nanotubes

Singh

Toma

Kumar

et al. 2011

Chemistry A European J

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“…[1][2][3][4] Several successful attempts have been reported to grow organic layers with designed structures by influencing the intermolecular interactions, which are accessible i) by the choice of molecules exhibiting complementary functional groups with the potential to form hydrogen bonds, [5][6][7][8] ii) by the addition of metallic atoms to the surface that induce the formation of metalloorganic networks, [9][10][11][12] or iii) by thermally activating chemical reactions between predetermined molecular connection points. [13,14] With the same purpose, it has also been demonstrated that the moleculesubstrate interactions can be influenced by the use of nanostructured surfaces, such as those resulting from surface superstructures or stepped surfaces.…”

Section: Introductionmentioning

confidence: 99%

Balancing Intermolecular and Molecule–Substrate Interactions in Supramolecular Assemblies

Oteyza

Silanes

Ruiz-Oses

et al. 2009

Adv Funct Materials

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Self‐assembly of functional supra‐molecular nanostructures is among the most promising strategies for further development of organic electronics. However, a poor control of the interactions driving the assembling phenomena still hampers the tailored growth of designed structures. Here exploration of how non‐covalent molecule‐substrate interactions can be modified on a molecular level is described. For that, mixtures of DIP and F16CuPc, two molecules with donor and acceptor character, respectively are investigated. A detailed study of their structural and electronic properties is performed. In reference to the associated single‐component layers, the growth of binary layers results in films with strongly enhanced intermolecular interactions and consequently reduced molecule‐substrate interactions. This new insight into the interplay among the aforementioned interactions provides a novel strategy to balance the critical interactions in the assembly processes by the appropriate choice of molecular species in binary supra‐molecular assemblies, and thereby control the self‐assembly of functional organic nanostructures.

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“…[3][4][5][6][7] Systems based on planar molecules have been reported to build up the same bonding motifs in 2D as well as in 3D environments both for homomolecular [8][9][10] and for heteromolecular cases. [5,6,11] The resulting surface-confined architectures are influenced by the substrate on which the assembly takes place. [12] The wide range of possible substrate-induced effects spans from moderate quantitative variations to qualitatively new ordering behavior.…”

Section: Introductionmentioning

confidence: 99%

Does the Surface Matter? Hydrogen‐Bonded Chain Formation of an Oxalic Amide Derivative in a Two‐ and Three‐Dimensional Environment

et al. 2008

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We report on a multi‐technique investigation of the supramolecular organisation of N,N‐diphenyl oxalic amide under differently dimensioned environments, namely three‐dimensional (3D) in the bulk crystal, and in two dimensions on the Ag(111) surface as well as on the reconstructed Au(111) surface. With the help of X‐ray structure analysis and scanning tunneling microscopy (STM) we find that the molecules organize in hydrogen‐bonded chains with the bonding motif qualitatively changed by the surface confinement. In two dimensions, the chains exhibit enantiomorphic order even though they consist of a racemic mixture of chiral entities. By a combination of the STM data with near‐edge X‐ray absorption fine‐structure spectroscopy, we show that the conformation of the molecule adapts such that the local registry of the functional group with the substrate is optimized while avoiding steric hindrance of the phenyl groups. In the low coverage case, the length of the chains is limited by the Au(111) reconstruction lines restricting the molecules into fcc stacked areas. A kinetic Monte Carlo simulated annealing is used to explain the selective assembly in the fcc stacked regions.

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Coadsorption of Guanine and Cytosine on Graphite: Ordered Structure Based on GC Pairing

Cited by 92 publications

References 46 publications

Carbon Nanotube–Nucleobase Hybrids: Nanorings from Uracil‐Modified Single‐Walled Carbon Nanotubes

Carbon Nanotube–Nucleobase Hybrids: Nanorings from Uracil‐Modified Single‐Walled Carbon Nanotubes

Balancing Intermolecular and Molecule–Substrate Interactions in Supramolecular Assemblies

Does the Surface Matter? Hydrogen‐Bonded Chain Formation of an Oxalic Amide Derivative in a Two‐ and Three‐Dimensional Environment

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