Evaluation of Valance Force Constant for Terahalides Applying the Effective Nuclear Charge Model

Ruby Yadav¹, Pradeep Kumar Yadav^2,* and Sanjay Kumar Singh³

 ^1,2Physics Department, Meerut College, Meerut, U.P., India.

³Directorate of Higher Education, U.P., Prayagraj, India.

*email: yadav62pk@gmail.com

In the present article, the effective nuclear charge model is used to compute the valence force constants for tetrahedral molecules. The experimental force constants determined by normal co-ordinate analysis are compared with the computed results. The agreement between the results, are found to be reasonably good and hence, it is concluded that the said model is successful to predict the approximated valence force constants in complicated polyatomic molecules.

Keywords: Tetrahedral, valance force, nuclear charge.

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