Calculation of Electron Density Distribution in Cd0.5Zn0.5S by Density Functional Theory: Exploring its Bonding Character and Stability

A.P. Othman; Amin Aadenan; Muhammad Mus Ab Anas; G.A. Gopir

doi:10.4028/www.scientific.net/AMR.1108.21

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1108Calculation of Electron Density Distribution in...

Calculation of Electron Density Distribution in Cd_0.5Zn_0.5S by Density Functional Theory: Exploring its Bonding Character and Stability

Abstract:

The topology of electron density is a sketch that gives a clear picture about electronic distribution and details information of natural molecular bonding. In quantum mechanics or particularly in quantum chemistry, the electron density is a measure of the probability of an electron occupying at any infinitesimal element of space surrounding at any given point.Studies about the topology of electron density in Cd_0.5Zn_0.5S at plane (101) were conducted by the application of density functional theory (DFT) within linear augmented plane wave (LAPW) by using the WIEN2k software. In this calculation, generalized gradient approximation (GGA) methods were used to calculate the exchange-correlation potential of the electrons. Based on this calculation, the topology of electron density were presented in a contour plot (2D) and also inarelief map plot (3D) in order to see the way electron density, ρ of Cd_0.5Zn_0.5S defines the gradient field and hence the bonding type. From these plots, we identified the bond paths that coincide with the contours of electron to suggest that Cd_0.5Zn_0.5S exhibited characteristics of covalent and a slightly ionic bond character.

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Periodical:

Advanced Materials Research (Volume 1108)

Pages:

21-25

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1108.21

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Online since:

June 2015

Authors:

A.P. Othman, Amin Aadenan, Muhammad Mus Ab Anas, G.A. Gopir*

Keywords:

Bonding, DFT, Electron Density, Molecular Structure, Topology

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