The laser-induced intermolecular force that exists between two or more particles in the presence of an electromagnetic field is commonly termed ‘optical binding’. Distinct from the single-particle forces that are at play in optical trapping at the molecular level, the phenomenon of optical binding is a manifestation of the coupling between optically induced dipole moments in neutral particles. ...

The virial coefficients can be obtained from statistical mechanics in connection with the intermolecular potentials. The intermolecular potential of polyatomic molecules is usually assumed to consist of a spherically symmetric component plus a contribution due to asphericaity of the molecular charge distribution. In this study, the second virial coefficients have been calculated for N2...

Abstract Membrane filtration is vital in our daily lives to extract fresh water from contaminated water. However, membrane suffering fouling, which induced by accumulations of particles on surface. Due the hydraulic field and electrical (from functional groups membranes) near surface, particle will be exerted different forces. The intermolecular forces such as Lateral lift force, Brownian shear...

The character of the intermolecular interactions in Cl2-HX (X =F, Cl and Br) complexes has been investigated by means of the second-order Möller–Plesset perturbation theory (MP2) and the density functional theory (DFT) calculations. The results show that there are two types of lowest interaction potential equilibrium structures in the interactions between Cl2 and HX: X∙∙∙Cl type geometry and hy...

Weak interactions between bromine, sulphur, and hydrogen are shown to stabilize 2D supramolecular monolayers at the liquid-solid interface. Three different thiophene-based semiconducting organic molecules assemble into close-packed ultrathin ordered layers. A combination of scanning tunneling microscopy (STM) and density functional theory (DFT) elucidates the interactions within the monolayer. ...

A unique experimental system is devised that reveals the interplay among capillary force and alternating intermolecular forces. As a consequence of the interplay, untrathin ~,10 nm! liquid films, which invariably experience dewetting, can be made stable, leading to a smooth and dropless minimum-potential surface. Theory and experiment show that the film thickness is ,1 nm when the film recedes ...

Interactions of fibrinogen with dextran sulfate, dextran, and carboxymethyl cellulose were investigated by turbidity measurement, chemical analysis, and electrophoresis. Dextran sulfate and fibrinogen combined even in the physiological pH region where both of them have negative net charges, and formed a precipitate and soluble complex. Since no complex formation was observed in the case of dext...

A force matching technique based on previous work by Voth and co-workers is developed and employed to coarse grain intermolecular potentials for three common solvents: carbon tetrachloride, benzene, and water. The accuracy of the force-matching approach is tested by comparing radial distribution functions (RDF) obtained from simulations using the atomistic and coarse-grained potentials. Atomist...

Scanning probe microscopy can now be used to map the properties of single molecules with intramolecular precision by functionalization of the apex of the scanning probe tip with a single atom or molecule. Here we report on the mapping of the three-dimensional potential between fullerene (C60) molecules in different relative orientations, with sub-Angstrom resolution, using dynamic force microsc...