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Self Assembly Of Flat Organic Molecules On Metal Surfaces
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Book Synopsis Self-Assembly of Flat Organic Molecules on Metal Surfaces by : Manuela Mura
Download or read book Self-Assembly of Flat Organic Molecules on Metal Surfaces written by Manuela Mura and published by Springer Science & Business Media. This book was released on 2012-06-30 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manuela Mura's thesis is devoted to ab initio studies of self-assembled organic molecules on a gold surface. This area of research is particularly vibrant because of the various applications such studies have in nanoscience and surface chemistry and physics. In this thesis Manuela Mura uses theory to suggest atomistic models for the observed assembled and she proposes an assembly mechanism. The methods and results developed as part of this work will be of wide interest to physicists and chemists working on the assemblies of organic molecules on crystal surfaces.
Book Synopsis Molecular Self-assembly of Organic Molecules on Coinage Metal Surfaces by :
Download or read book Molecular Self-assembly of Organic Molecules on Coinage Metal Surfaces written by and published by . This book was released on 2021 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic Scale Observations of Large Organic Molecules at Metal Surfaces by : Jens Weckesser
Download or read book Atomic Scale Observations of Large Organic Molecules at Metal Surfaces written by Jens Weckesser and published by . This book was released on 2000 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling the Behaviour and Self-assembly Processes of Organic Molecules on Metallic Surfaces by : Giulia Tomba
Download or read book Modelling the Behaviour and Self-assembly Processes of Organic Molecules on Metallic Surfaces written by Giulia Tomba and published by . This book was released on 2008 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Self-Assembly by : Makoto Fujita
Download or read book Molecular Self-Assembly written by Makoto Fujita and published by Springer. This book was released on 2003-09-04 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-assembly is undoubtedly a topic of special interest in current chemistry and is related to very wide scientific areas. Recent progress in this field seems to be featured by the construction of well-defined discrete systems exploiting complementary hydrogen bonding as well as coordination bonding. Seven leading international experts introduce the current topics in this very interesting field, focusing on two major subjects: organic assemblies and inorganic assemblies. All researchers who are interested in molecular recognition, material science, nanotechnology, and supramolecular chemistry will welcome this book as an inspiring source for creative research ideas.
Book Synopsis Complex organic molecules at metal surfaces : bonding, organisation and chirality by : S. M. Barlow
Download or read book Complex organic molecules at metal surfaces : bonding, organisation and chirality written by S. M. Barlow and published by . This book was released on 2003 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Characterization of Scanning Tunneling Microscopy Images of Assemblies of Flat Organic Molecules on Metal Surfaces by : Manuela Mura (Physicist)
Download or read book Theoretical Characterization of Scanning Tunneling Microscopy Images of Assemblies of Flat Organic Molecules on Metal Surfaces written by Manuela Mura (Physicist) and published by . This book was released on 2010 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work in this thesis is focused on molecules that are able to self-assemble on different surfaces by forming two-dimensional templates stabilised via double or triple hydrogen bonding. In particular, assemblies of molecules such as melamine, perylene tetra-carboxylic di-imide (PTCDI), perylene tetra-carboxylic di-anhydride (PTCDA), naphthalene tetracarboxylic-dianhydride (NTCDA) and naphthalene tetracarboxylic diimide (NTCDI) are studied in detail. The aim is to give a complete characterisation of the supramolecular networks, taking into account the balance between the molecule-molecule and molecule-substrate interactions. All our assembly calculations are done within the gas phase approximation, i.e. without taking into account the surface, which is a good approximation assuming that the molecules are quite mobile on the surface. Using a systematic method based on considering all possible hydrogen bond connections between the molecules we investigate planar superstructures that organic molecules can form in one and two dimensions. The structures studied are based on two or more molecules per unit cell and all structures considered, assemble in fiat periodic patterns. Most of the calculations are performed using the density functional theory method. We show that the calculated lattice parameters of the structures considered compare well with those measured experimentally. To specifically check the applicability of the gas-phase approximation, we systematically investigated the adsorption of the molecules on the Au (111) metal surface with the particular attention being paid to the characterisation of the potential energy surface of our molecules on this surface. We performed these calculations using both a conventional functional (PBE) which does not include the dispersion interaction, and the newly developed vdW-DF method which does.
Book Synopsis Theoretical Characterization of Organic Molecules on Metallic Surfaces by : Aliaksandr V. Yakutovich
Download or read book Theoretical Characterization of Organic Molecules on Metallic Surfaces written by Aliaksandr V. Yakutovich and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Complex Organic Molecules at Metal Surfaces by : S. M. Barlow
Download or read book Complex Organic Molecules at Metal Surfaces written by S. M. Barlow and published by . This book was released on 2003 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probing the Interaction of Small Organic Molecules on Metal Oxid Surfaces by : You Kun Gao
Download or read book Probing the Interaction of Small Organic Molecules on Metal Oxid Surfaces written by You Kun Gao and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Self-assembly of C 60 Molecules on Oxidized W(110) Surface by : Sundar Raja Vadapoo
Download or read book Self-assembly of C 60 Molecules on Oxidized W(110) Surface written by Sundar Raja Vadapoo and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rational Molecular Design for Self-assembly Tuning of Organic Molecular Layers and Metal-organic Networks on Metal Surfaces by : David L. Wisman (II)
Download or read book Rational Molecular Design for Self-assembly Tuning of Organic Molecular Layers and Metal-organic Networks on Metal Surfaces written by David L. Wisman (II) and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface-assisted self-assembly of architectures is showing promise for the development of more efficient technologies and processes related to the fields of organic electronics, photovoltaics and heterogeneous catalysis. The detailed understanding of the intermolecular and molecule-substrate interactions that are responsible for resulting surface architectures is necessary for the rational design molecular systems. The experiments detailed within this thesis show that through careful tuning of organic molecules significant changes are observed in the 2-D self-assembly, 3-D stacking, or metal-organic coordination properties.
Book Synopsis Self-assembly Patterning of Organic Molecules on a Surface by :
Download or read book Self-assembly Patterning of Organic Molecules on a Surface written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The embodiments disclosed herein include all-electron control over a chemical attachment and the subsequent self-assembly of an organic molecule into a well-ordered three-dimensional monolayer on a metal surface. The ordering or assembly of the organic molecule may be through electron excitation. Hot-electron and hot-hole excitation enables tethering of the organic molecule to a metal substrate, such as an alkyne group to a gold surface. All-electron reactions may allow a direct control over the size and shape of the self-assembly, defect structures and the reverse process of molecular disassembly from single molecular level to mesoscopic scale.
Book Synopsis Polarization and Self-assembly at Metal-organic Interfaces by : Kshitij Chandra Jha
Download or read book Polarization and Self-assembly at Metal-organic Interfaces written by Kshitij Chandra Jha and published by . This book was released on 2012 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation contributes to the understanding of driving forces of self-assembly processes leading to the growth and self assembly of metal nanostructures for nanoelectronic, sensor, and drug delivery applications. It remains difficult to image and characterize molecular-level processes by measurement alone so that we have employed molecular simulation to gain more insight into two aspects: (1) the contribution of induced charges in metal nanostructures to the interaction with biomolecules and ionic liquids, (2) and the mechanism of gold nanorod growth. Polarization at {111} and {100} surfaces of gold in contact with water and peptides of different charge state contributes to the binding strength and plays a role in the assembly of metal nanostructures. We computed the attractive energy using the concept of image charges and molecular dynamics simulation in all-atomic resolution. Attractive interactions amount to between -50 and -70 mJ/m2, corresponding to -0.6 kcal/mol per water molecule and variable amounts per amino acid in peptides depending on the charge state (0 to -10 kcal/mol). The main contribution to adsorption on {111} surfaces stems from soft epitaxial interactions and the net contribution of polarization to adsorption is smaller. On surfaces with poor epitaxial fit of the solute molecules such as {100} surfaces, the main contribution to adsorption can be made by polarization, particularly for charged peptides and ionic liquids. Therefore, the magnitude of interfacial polarization can modulate the binding strength of biomolecules or surfactants versus solvent to metal surfaces. The mechanism of shape regulation in the growth of gold nanorods in ionic liquids (ILs) such as 1-Ethyl-3-methylimidazolium ethyl sulfate is initiated by silver underdeposition and modulated by induced surface charge which decreases in the order {110}, {100}, and {111} for gold surfaces. Attractive effect of induced charges is quantified based on our previous work on polarization at metal-biomolecular interfaces in solution. Higher surface corrugation increases the induced charge so that the side surfaces of gold nanorods synthesized in imidazolium based ionic liquids are formed by {110} and {100} faces, in which a higher contribution of induced charges by -2.3 kcal/mol-molecule compared to {111} surfaces accounts for the thermodynamic stability observed in TEM. In a nonionic solvent like water, surface energies of all three faces {110}, {100}, and {111} are about the same and lead to different surface bounds of gold nanorods in combination with capping agents. The adsorption energy of IL molecules on the gold surfaces changes as a function of the number of molecules per unit area depending on packing constraints and network strength between cations and anions. The adsorption energy per molecule saturates once flat-on molecular multilayers are formed. We suggest that the balance between induced charges, soft epitaxy, and silver underdeposition contributes to the anisotropic growth of gold nanorods in a given solvent.
Book Synopsis First Principles Theory of Organic Molecules on Metal Surfaces by : Nicolae Atodiresei
Download or read book First Principles Theory of Organic Molecules on Metal Surfaces written by Nicolae Atodiresei and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Self-assembly and Chiral Recognition by : Angelika Kühnle
Download or read book Molecular Self-assembly and Chiral Recognition written by Angelika Kühnle and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Molecules on Metal Surfaces by : Benjamí Martorell Masip
Download or read book Organic Molecules on Metal Surfaces written by Benjamí Martorell Masip and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
