Comment on “The structure and formation of hydrogen-bonded molecular networks on Au(111) surfaces revealed by scanning tunnelling and torsional-tapping atomic force microscopy” by V. V. Korolkov, N. Mullin, S. Allen, C. J. Roberts, J. K. Hobbs and S. J. B. Tendler, Phys. Chem. Chem. Phys., 2012, 14, 15909

Cebula, Izabela; Räisänen, Minna T.; Madueño, Rafael; Karamzadeh, Baharan; Buck, Manfred

doi:10.1039/c3cp50754h

Cited by 3 publications

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References 3 publications

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“…For instance, it has been shown using atomic force microscopy (AFM) that trimesic acid (TMA) films at the H 2 O/HOPG liquid–solid interface can form 3–5 multilayers that cannot be detected by STM, which can only image the first monolayer in contact with the substrate. This phenomenon is likely to be a common one, but so far, it has not been fully studied. − Current developments of adapted electrospray and soft-landing techniques now permit the transfer of essentially any molecule or salt from solution to UHV. − (d) The spatial resolution of UHV-STM (and now NC-AFM) is much higher than in solution, allowing precise characterization of subatomic details and conformations and precise measurements of interatomic distances. STM manipulation of single atoms and molecules is now a routine and a precise technique that allows perturbation of the observed system in order to evaluate its stability and to displace molecules.…”

Section: Introductionmentioning

confidence: 99%

Bicomponent Supramolecular Architectures at the Vacuum–Solid Interface

et al. 2017

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This review aims at giving the readers the basic concepts needed to understand two-dimensional bimolecular organizations at the vacuum–solid interface. The first part describes and analyzes molecules–molecules and molecules–substrates interactions. The current limitations and needs in the understanding of these forces are also detailed. Then, a critical analysis of the past and recent advances in the field is presented by discussing most of the key papers describing bicomponents self-assembly on solid surface in an ultrahigh vacuum environment. These sections are organized by considering decreasing molecule–molecule interaction strengths (i.e. starting from strong directional multiple H bonds up to weaker nondirectional bonds taking into account the increasing fundamental role played by the surface). Finally, we conclude with some research directions (predicting self-assembly, multi-components systems, and nonmetallic surfaces) and potential applications (porous networks and organic surfaces).

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Section: Introductionmentioning

confidence: 99%

Bicomponent Supramolecular Architectures at the Vacuum–Solid Interface

et al. 2017

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“…They were deliberately chosen to illustrate the adsorption behaviour of S-TPEB and PE-TPEB. As exemplified by Figure 3a and discussed in detail elsewhere 14 networks of high structural quality can be prepared over extended areas. Secondly, the defects form during the synthesis of the network and are not due to exposure of the network to the star molecules.…”

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confidence: 97%

“…4 Instead of shaping the geometry of the pores of a supramolecular network by modification of a network component, dividing a pore into segments by an additional molecule was investigated. Starting from a honeycomb network which consists of 3,4:9,10tetracarboxylic diimide (PTCDI) 1,3,5-triazine-2,4,6-triamine (melamine) and which has been studied both in ultrahigh vacuum (UHV) 12,13 and under ambient conditions 6,14,15 , adsorption of a star-shaped molecule is expected to result in a well defined compartmentation of the network pores as illustrated in Fig. 1a.…”

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confidence: 99%

Bestowing structure upon the pores of a supramolecular network

et al. 2014

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Trigonal molecules compartmentalise the pores of a honeycomb network of 3,4:9,10-tetracarboxylic diimide (PTCDI) and 1,3,5-triazine-2,4,6-triamine (melamine). Extending the 1,3,5-tri(phenylene-ethynylene)benzene core by a phenyl group allows for a well-defined accommodation of the molecule into two symmetry equivalent positions in the pore. The corresponding styryl or phenylene-ethynylene derivatives exceed the pore size and, thus, impede pore modification.

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Sequential nested assembly at the liquid/solid interface

et al. 2017

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Studying the stepwise assembly of a four component hybrid structure on Au(111)/mica, the pores of a hydrogen bonded bimolecular network of 3,4,9,10-perylenetetracarboxylic diimide (PTCDI) and 1,3,5-triazine-2,4,6-triamine (melamine) were partitioned by three and four-armed molecules based on oligo([biphenyl]-4-ylethynyl)benzene, followed by the templated adsorption of either C60 fullerene or adamantane thiol molecules. The characterisation by ambient scanning tunneling microscopy (STM) reveals that the pore modifiers exhibit dynamics which pronouncedly depend on the molecular structure. The three-armed molecule 1,3,5-tris([1,1′-biphenyl]-4-ylethynyl)benzene (3BPEB) switches between two symmetry equivalent configurations on a time scale fast compared to the temporal resolution of the STM. Derivatisation of 3BPEB by hydroxyl groups substantially reduces the switching rate. For the four-armed molecule configurational changes are observed only occasionally. The observation of isolated fullerenes and small clusters of adamantane thiol molecules, which are arranged in a characteristic fashion, reveals the templating effect of the trimolecular supramolecular network. However, the fraction of compartments filled by guest molecules is significantly below one for both the thermodynamically controlled adsorption of C60 and the kinetically controlled adsorption of the thiol with the latter causing partial removal of the pore modifier. The experiments, on the one hand, demonstrate the feasibility of templating by nested assembly but, on the other hand, also pinpoint the requirement for the energy landscape to be tolerant to variations in the assembly process.

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Cited by 3 publications

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Bicomponent Supramolecular Architectures at the Vacuum–Solid Interface

Bicomponent Supramolecular Architectures at the Vacuum–Solid Interface

Bestowing structure upon the pores of a supramolecular network

Sequential nested assembly at the liquid/solid interface

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