Electrostatic Potential


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electrostatic potential

[i′lek·trə‚stad·ik pə′ten·chəl]
(electricity)

Potential, Electrostatic

 

a scalar characteristic of energy in an electrostatic field. Electrostatic potential is equal to the ratio of the potential energy of a charge in an electrostatic field to the magnitude of the charge. The intensity of the electrostatic field E and the potential ϕ are related by the equation E = — grad ϕ. The electrostatic potential satisfies the Poisson equation. The potential itself, which, like potential energy, can be calculated within an accuracy up to an arbitrary constant, does not have significance, but rather the difference in potentials is physically significant.

References in periodicals archive ?
During MEP mapping, two basic regions red and blue appear which correspond to the extreme value of electrostatic potential. The nucleophilic site with positive potential is indicated by blue color, while negative potential site favored for electrophilic attack is indicated by red.
By eliminating lower spinor component and by assuming the electrostatic potential [upsilon](r) to be a constant value [eta], the second-order differential equation can be gotten for upper spinor wave function as
We have discussed the impacts of these different plasma parameters on the shape structure of the envelope soliton by sketching in two dimensions both the small amplitude potential [V.sub.s]([PHI]) versus electrostatic potential [PHI] and the first perturbed electrostatic potential [PHI]([zeta]) versus travelling wave parameter [zeta] as represented in Figures 2-5.
The quantum theory of atoms-in-molecules (QTAIM), conceptual DFT, natural population analysis (NPA), and molecular electrostatic potential (MEP) methods were also employed.
(b) The molecular surface area of different electrostatic potential interval; the electrostatic potential interval is divided into 15 equal parts.
Williams, "Representation of the molecular electrostatic potential by a net atomic charge model," Journal of Computational Chemistry, vol.
Regarding the molecular recognition process between a receptor and a ligand (pharmacodynamics), the electrostatic potential of the ligand is essential in order the receptor could "feel" the ligand's proximity, from a far distance.
In this paper, we have focused on the anharmonisity of the electrostatic potential, and investigated the interaction between laser fields and a nano-scale thin film modelled by an electron confined in an electrostatic potential.
In the electrostatic potential field of diamond (Figure 5a) the surfaces totally involves the crystalline structure, preventing chemical attacks from species different to carbon atoms indicating high stability of the crystallographic structure.
The spontaneous polarization occurring in the WZ segment in the heterocrystalline superlattice resulted in a macroaveraged electrostatic potential with the sawtooth-like shape, as shown in Figure 2.
Based on the spectrum of electrostatic potential, the ligand position or ligand conformation in a hole is observed by using the software MOE as (Figure 1, 2 and 3).
Since cellulose readily interacts with its environment and in a special way with water molecules, it is best to highlight its electronic properties as the electron density, electrostatic potential field, and molecular orbitals where the reactions take place.

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