Results 41 to 50 of about 36,786 (128)

Crystallization of the Lewis-Wahnstr\"{o}m ortho-terphenyl model

open access: yes, 2010
Crystallization is observed during long molecular dynamics simulations of bent trimers, a molecular model proposed by Lewis and Wahnstr\"{o}m for ortho-terphenyl.
Harrowell, Peter   +2 more
core   +1 more source

Magnetic molecules created by hydrogenation of Polycyclic Aromatic Hydrocarbons

open access: yes, 2009
Present routes to produce magnetic organic-based materials adopt a common strategy: the use of magnetic species (atoms, polyradicals, etc.) as building blocks.
A. Rajca   +7 more
core   +1 more source

Molecular transport calculations with Wannier functions

open access: yes, 2005
We present a scheme for calculating coherent electron transport in atomic-scale contacts. The method combines a formally exact Green's function formalism with a mean-field description of the electronic structure based on the Kohn-Sham scheme of density ...
Agrait   +47 more
core   +1 more source

Equilibrium structures of anisometric, quadrupolar particles confined to a monolayer

open access: yes, 2016
We investigate the structural properties of a two-dimensional system of ellipsoidal particles carrying a linear quadrupole moment in their center. These particles represent a simple model for a variety of uncharged, non-polar conjugated organic molecules.
Antlanger, Moritz   +4 more
core   +1 more source

Organic crystalline polymers: structural properties and way to synthesis under high pressure

open access: yes, 2018
We consider different structures, which can be obtained by polymerization of aromatic organic molecules under high pressures. These 2D and 3D covalently bonded organic polymers and their functionalization can pave the way to production of energy storage ...
Brazhkin, V. V.   +4 more
core   +1 more source

Evidence of environmental strains on charge injection in silole based organic light emitting diodes

open access: yes, 2007
Using d. functional theory (DFT) computations, the authors demonstrated a substantial skeletal relaxation when the structure of 2,5-bis-[4-anthracene-9-yl-phenyl]-1,1-dimethyl-3,4-diphenyl-silole (BAS) is optimized in the gas-phase comparing with the mol.
A. Kahn   +10 more
core   +2 more sources

Screening effects in a density functional theory based description of molecular junctions in the Coulomb blockade regime

open access: yes, 2008
We recently introduced a method based on density functional theory (DFT) and non-equilibrium Green's function techniques (NEGF) for calculating the addition energies of single molecule nano-junctions in the Coulomb blockade (CB) regime.
Cornil, J., geskin, V., Stadler, R.
core   +1 more source

The Motion of the Benzene Molecules in the Host Lattices of M(NH3)2M’(CN)4·2C6H6 Clathrates

open access: yesCroatica Chemica Acta, 1992
In our previous report1 we discussed host-guest interactions in a series of Hofmann-type clathrates of the general formula: M(NH3)2M’(CN)4-2C6H6, where M is Ni, Fe, Co, Zn, Mn and Cd and M’ is Ni. It was found that the splitting of the band due to CH out-of-plane vibration in benzene, at liquid nitrogen temperature, (at around 985 cm-1), increases as ...
Andreeva, L.   +2 more
openaire   +1 more source

Diels−Alder Topochemistry via Charge-Transfer Crystals:  Novel (Thermal) Single-Crystal-to-Single-Crystal Transformations [PDF]

open access: yes, 2001
The solid-state [4+2] cycloaddition of anthracene to bis(N-ethylimino)-1,4-dithiin occurs via a unique single-phase topochemical reaction in the intermolecular (1:1) charge-transfer crystal.
Hubig, S. M.   +3 more
core   +1 more source

Polymers near Metal Surfaces: Selective Adsorption and Global Conformations

open access: yes, 2002
We study the properties of a polycarbonate melt near a nickel surface as a model system for the interaction of polymers with metal surfaces by employing a multiscale modeling approach.
A. Alavi   +6 more
core   +1 more source

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